OPT: Blog

Tru Cool 47391 40k GVW Transmission Coolers in Stock and Ready to Ship

The 40,000 GVW Tru-Cool 47391 is now in stock and ready to ship from Oregon Performance Transmission.

The Low Pressure Drop, or LPD47391, is by far our most popular cooler for RV towing or heavy duty use.

Due to the Coronavirus shutdowns, there have been many backorders and shortages of this transmission cooler this year. Oregon Performance Transmission has these coolers in stock and ready to ship to you immediately.

This universal fit 40k GVW oil cooler offers the ultimate protection against overheating transmissions, and will install in most full size trucks and SUV applications with excellent results. The 47391 is perfect for heavy towing or hot summer driving, and is a must for heavy duty applications, including racing. Keeping your cooler temperatures low is the first step in avoiding premature, costly repairs, and transmission rebuilds.

Known by multiple names and part numbers, this is the ultimate automatic transmission cooler.

Click here to purchase.

For smaller trucks and passenger cars, Tru-Cool has a full line of fluid coolers to meet your application needs. Click below for the full product line.

Tru Cool full product line

If you have any questions or need assistance with your order, please do not hesitate to contact us at sales@oregonperformancetransmission.com.

Posted on August 20th, 2020
Posted by Brian
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Filed under: 47391, Tru-Cool
Tags: 40k, 47-391, 47391, camping, cooler, covid shutdown, DIY, fluid cooler, gvw, heavy duty, high temperatures, low pressure drop, LPD, LPD cooler, motor home, recreational, road trip, RV towing, summer cooling, towing, transmission cooler, transmission life, Tru-Cool

Mar

COVID-19 Update

As of today, March 23, 2020, Oregon Performance Transmission is open for regular on-line business. Although we do not anticipate any closures of our business, the novel Coronavirus pandemic is a rapidly changing situation and our open status may change at any time. Please check our Facebook page for up-to-the-minute notifications of potential closures and/or unexpected shipping delays.

Posted on March 23rd, 2020
Posted by Brian
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Filed under: Uncategorized
Tags:

Jun

Father’s Day gift giving solved

Not sure what to buy Dad this year? Solve the problem with something he will really love: a gift certificate from Oregon Performance Transmission.

Our gift cards come in denominations starting at $25.00 and do not expire.

Give him something he’ll really love this Father’s Day, or any time of year, with a gift card from OPT.

If you need help finding the right gift, please feel free to contact us at sales@oregonperformancetransmission.com for assistance and recommendations.

Posted on June 8th, 2018
Posted by Brian
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Filed under: Gifts
Tags: dad, Father's Day, gift card, gift certificate, gifts, hard to buy for, parts, transmission, what to give dad

Oct

Which servo should I choose?

FAQ: Do I need the standard corvette servo or the servo with the longer pin? And what about the 4^th gear billet servo?

If you have a 700R4, 4L60E, 4L65E, or 4L70E automatic transmission, and want to upgrade your servo, you have several different options available to you:

First, you can install just the standard corvette servo found here

With this servo, right away you’ll notice faster and firmer 1-2 shifts and even slightly better 2-3 shifts. Also, this servo will give your transmission 50% more apply pressure, just what you need to keep from burning your transmission up under heavy load situations.

The corvette servo is a great upgrade for not a lot of money, and you do not need to take the transmission out to install it. Our servo comes with two rigid seals and two rubber seals, as well as 3 pages of instructions for easy and detailed installation.

Second, you can install the standard corvette servo with the longer pin found here

With this package, you get the corvette servo outlined above and you get the longer pin all in one package. The included longer-than-stock servo pin does a great job of getting your band adjusted to the right clearance. It’s almost more important to get the right clearance than it is to change to the corvette servo.

Not sure if you need the longer pin? You can test your clearance by pushing in on your servo cover. If you notice that it moves in between 1/8″-1/4″, you know you need the longer pin. This is way too much travel, as the clearance should be closer to 1/16″.

Also, since the servo isn’t traveling as far before it applies the band, the 1-2 and even the 3-4 shift will be much quicker.

Finally, you can install the standard corvette servo, and purchase the 4th gear billet servo found here

With these two products, you’ll get all the benefit of the corvette servo, as well as better holding capacity in 4^th gear. Plus, if you go this route, you won’t need to buy the servo with the longer pin. The reason is because this 4th gear billet servo is manufactured with tighter tolerances, which tightens up the clearance issue that the longer pin typically tackles.

If money allows, Oregon Performance Transmission recommends purchasing the standard corvette servo, as well as the 4th gear billet servo.

If you have any questions about servos, or which combination might be right for your vehicle, please do not hesitate to contact us at sales@oregonperformancetransmission.com for more information.

Posted on October 5th, 2017
Posted by Brian
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Filed under: 4L60E, 4L65E, 4L70E, 700R4, FAQ's
Tags: 4L60E, 4L65E, 4L70E, 4th gear, 700R4, apply pressure, automatic transmission, band, billet servo, Chevrolet, Chevy, clearance, Corvette servo, DIY, GM, GMC, installation, long pin, Oregon Performance Transmission, performance, service, servo, shift, Superior, tolerance, transmission, transmission life, upgrades

Sep

FAQ: Torque Converter Splines

faq-vesta

Q: I need a new converter for my 700R4 and I want to make sure I order the right one. I see you offer a 27-spline, and a 30-spline option. Which one do I need?

A: Sometimes just knowing your transmission year, or your casting number on your transmission case, is not enough to ensure you are ordering the correct converter. The reason is because a popular upgrade on the 1982-1984 transmission is to upgrade the 27-spline shaft to the later, stronger, 30-spline shaft. This is why it’s a good idea to count your splines just to be sure.

Q: Which splines do I count — the inner or the outer ones?

A: You will want to count the outer splines on your existing converter — the smaller ones that are closest to the end of the output shaft. These can be difficult to count so you will need to take your time.

If you have any questions about which converter will work best with your application, please feel free to email us at any time at sales@oregonperformancetransmission.

Posted on September 25th, 2017
Posted by Brian
No Comment »
Filed under: 700R4, Torque Converters
Tags: 27-spline, 30-spline, application, automatic transmission, casting number, converter, counting splines, inner, Oregon Performance Transmission, outer, output shaft, overhaul, performance, shaft, splines, torque, torque converter, transmission, transmission case

Sep

Do I need a thermal bypass?

Fall is a great time to consider installing a transmission cooler in your vehicle. For many people, the busyness of summer travel has settled down, the kids are back in school, and there’s finally time to work on vehicle projects before the snow and freezing temperatures hit.

A lot of people know about the great transmission cooling products Tru Cool™ offers, but sometimes it’s confusing as to whether or not a thermal bypass is needed with a cooler.

Our most popular transmission cooler from Tru-Cool™, part number LNG-47391, has a sister cooler under part number LNG-4739. The only difference between the two? The 4739 comes with a thermal bypass, while the 47391 does not.

So what is a thermal bypass?

The thermal bypass is a small added valve that goes in the transmission line. When the transmission is cold, the thermal bypass will “bypass” the cooler so it can bring the transmission up to operating temperature more quickly.

Do I need a thermal bypass?

A bypass is not something that is typically needed unless you live in a fairly cold climate; for example, a place where temperatures in the winter are regularly below 32°F.

I already own a cooler but it doesn’t have a bypass. Can I buy the bypass separately and add it on?

Yes. The bypass works very well with other coolers, such as the Tru Cool™ 49211 cooler. So if you already have a cooler you like, adding the bypass on is definitely okay.

Where can I buy a thermal bypass?

We sell the bypass individually under part number LNG-4739P6.

If you would like to purchase a cooler with a bypass, we sell that package under part number LNG-4739.

If you do not need the thermal bypass but do need a great transmission cooler, and have the available space, we have that product under part number LNG-47391.

For more information about transmission or engine oil coolers, please feel free to contact us at sales@oregonperformancetransmission.com.

Posted on September 20th, 2017
Posted by Brian
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Filed under: 4739, 47391, FAQ's, thermal bypass, Tru-Cool
Tags: bypass, cold weather, cooler, cooling, DIY project, FAQ, freezing, performance, transmission, Tru-Cool

Dec

Transmission Failure and Snowplowing

7437758
Snowplow season is upon us for many across the country.

Plowing and towing at low speeds with an automatic transmission can produce a huge amount of heat, and when it comes to transmission life and longevity, heat is the number one enemy.

If you find yourself needing to rebuild or upgrade your transmission this winter, and you will be plowing or towing, we really recommend our high performance rebuild kits. Our HP kits come with Red lined clutches and Black Kolene steel plates. These clutches are specifically designed to handle 300% more heat than the factory type clutches, and considerably more than the HD high energy clutches. We have HP rebuild kits from Oregon Performance Transmission for the Ford, Chevy, and Dodge transmissions, as well as top quality shift kits to compliment your rebuild.

Our high performance rebuild kits can be found by clicking on the popular transmission application links below.

Chevrolet HP Rebuild Kits
• TH350
• TH400
• 700R4
• 4L60E
• 4L80E

Dodge HP Rebuild Kits
• A904
• A727
• A518, 46rh, 46re
• A618, 47re, 47rh
• 48re

Ford HP Rebuild Kits
• C4
• C6
• AOD
• AODE, 4R70W, 4R75W, 4R70E, 4R75E
• E4OD, 4R100

Even though it’s winter and cold outside, if you are snowplowing or towing, we strongly recommend installing a transmission cooler as well. Our best-selling transmission cooler is the 47391 40,000 GVW Low Pressure Drop cooler from Tru-Cool. This cooler is a work horse and will definitely help keep your transmission temperatures low. You can find it on our website, https://www.oregonperformancetransmission.com under part number LNG-47391.

As always, if you have any questions please do not hesitate to email us at sales@oregonperformancetransmission.com

Posted on December 15th, 2016
Posted by Brian
No Comment »
Filed under: 47391, 4L60E, 4L65E, 4L70E, 4L75E, 4R70W, 4R75E, 4R75W, 700R4, A727, A904, AODE, Chevrolet, Dodge, Ford, GM, Tru-Cool
Tags: 4L60E, 4L65E, 4L70E, 4L75E, automatic transmission, Chevrolet, Chevy, clutches, cooler, Ford, GM, GMC, heat, horsepower, LPD cooler, Oregon Performance Transmission, rebuild, shift kit, snow, snowplow, steel plates, tow, towing, transmission life, Tru-Cool

Oct

Ford and GM join forces to produce new 10-speed automatic transmission.

Beginning in 2017 we will begin seeing this beast of a transmission that was recently developed in partnership by Ford and GM. While the name of the transmission has yet to be finalized, it’s looking like Ford will call this the 10R80 transmission, while Chevy is looking at the 10L90 name. This new 10-speed transmission is modeled in part off the Hydra-matic automatic transmission series. We will be seeing a lower first gear compared to the prior 8-speed from GM, 7th gear being 1:1, and 8-10th gears being overdrive speeds with 10th being a ratio of .64.

The 6L series transmissions had a lot of complaints about shift quality. While this definitely improved with the 8L series, they have pushed this 10L series to an entirely new level of shift quality, clearly evidenced by this video of the 2017 650 HP ZL1 Camaro. The Camaro ran an outstanding 7:29.6 lap time around the Nurburgring, which was more than 11 seconds faster than the previous generation ZL1.

We hear this new tranny will be in some of the Ford trucks in 2017, including the Raptor, and should possibly make it’s way into the Mustang by 2018. On the GM side, it will be starting in the ZL1 Camaro in 2017, and is rumored to be filtering out into trucks, SUV’s and possibly the Cadillac V-series cars.

Stay tuned!

Posted on October 26th, 2016
Posted by Brian
No Comment »
Filed under: Ford, GM
Tags: 10-speed automatic transmission, 10-speed transmission, 10L90, 10R80, automatic transmission, Cadillac, Camaro, Chevy, Ford, GM, Hyra-matic, lap time, Mustang, Nurburgring, racetrack, Raptor, ZL1

Sep

2004R High Performance Options

Looking for products to upgrade your 200-4R automatic transmission? Here are the most popular products we sell for the 2004R transmission:

Rebuild kit

Oregon Performance Transmission offers two rebuild kit options for the 2004R automatic transmission: a standard rebuild kit and a high performance version.

The high performance 2004R rebuild kit can be found here under part number OPT-2004R-RBHP, or by clicking on the photograph below.

OPT-2004R-RBHP

This HP master rebuild kit includes:

A Transtec overhaul set with rubber seals, gaskets, o-rings, metal clad seals, and Teflon sealing rings, needed to complete your rebuild.
All Raybestos Red HP friction clutch plates
All Alto black Kolene Steel plates
New fluid filter
Kevlar Intermediate – 2^nd gear band
Bushings for the pump and case

This kit is performance rated and will handle 300% more heat and horsepower, torque and abuse than the standard clutches. The steel plates are Kolene coated with a special friction material that keeps them from slipping like the smooth steel are prone to do. This will give you a more positive clutch engagement.

Shift kit

The shift kit we typically recommend to go along with the high performance rebuild kit is the HD2 kit from Transgo. You can find it here under part number TRG-200-4R-HD2.

TRG-2004R-HD2

This newly upgraded high performance shift kit fits year 1981-up and contains the following:

Billet aluminum 2nd gear HP servo
.500 boost valve
Large low-reverse boost valve

Full installation instructions are included with this kit

The new dual feed 3rd gear circuit increases direct clutch holding capacity by 200%. This kit works for both street and strip use and can be installed with the transmission in the car.

Stator Support

From the factory the 2004R transmission had trouble with the stator support wearing out prematurely. For that reason it is always recommended to upgrade to this heat treated style if you still have the stock one in your transmission. You can find the upgraded stator support here under part number NTP-45812R.

NTP-45812R

10 vane / 13 vane pump kit

This is a must for high horsepower, heavy abuse applications, but is also definitely recommended if you just want to increase the life or durability of the transmission. This 10 vane pump will help to eliminate the line pressure fluctuations and high RPM pressure drops seen with the stock pump configurations. This kit includes a 10 vane rotor, vane rotor guide, pump slide, 10 vanes, 2 upgraded hardened heavy duty vane rings, O-ring, and slide seal. You can find the 10 vane pump kit here under part number NTP-K51819A.

NTP-K51819A

Alternatively, the 13 vane pump kit can be found here under part number NTP-K51817J.

NTP-K51817J

These parts are compatible with all GM, Cadillac, Chevrolet, Buick, Oldsmobile, and Pontiac applications with the 2004R transmission. Here is a list of original vehicles that came with the 2004R transmission from the factory:

Caprice 1982-1990
Custom Cruiser 1981-1990
Cutlass Supreme 1983-1987
Delta 88 1981-1985
Deville 1981-1984
El Camino 1981-1987
Electra 1981-1984
Fleetwood 1981-1990
Grand Prix 1984-1987
LeSabre 1981-1985
Monte Carlo 1982-1987
Regal 1981-1987

Please note that while the list above identifies original vehicles with the 200-4R, this transmission has become very popular to retro-fit into older vehicles (see photo here).

The 2004R transmission is part of the Turbo-Hydramatic series and is sometimes referred to as the 200-4R, 200R4, 2004R, 200-R4, TH200-4R, THM200-4R, and even the MW9.

An easy way to identify the 4 speed automatic 200-4R is by its irregular shaped pan and non-removable output shaft housing.

These parts and upgrades can help extend the life of your 2004R automatic transmission and well as provide significant performance results!

As always, if we can answer any questions or help in another way, please do not hesitate to contact us at salesdesk@optsales.com.

Posted on September 5th, 2016
Posted by Brian
No Comment »
Filed under: 2004R, Uncategorized
Tags: 10 vane, 13 vane, 200-4R, 2004R, 200R4, automatic transmission, Caprice, Custom Cruiser, Cutlass Supreme, Delta 88, Deville, El Camino, Electra, Fleetwood, Grand Prix, horsepower, hot rod, LeSabre, Monte Carlo, MW9, Oregon Performance Transmission, overhaul, performance, rebuild, Regal, shift kit, stator support, TH200-4R, THM200-4R, transmission, Turbo-Hydromatic, upgrades

Mar

Two additional ways to save money

Did you know that Oregon is one of the last few states in the U.S. without a sales tax? This means that when you shop with us, you pay zero sales tax! Depending on the size of your order, this could mean a significant savings.

image-3 no tax in oregon

In addition, Oregon Performance Transmission is now offering free U.S. shipping on all orders over $25.00.

Free shipping includes all 50 states and all US territories including Guam, Saipan, and Puerto Rico, US Virgin Islands and all military APO’s.

Free shipping does not necessarily mean slow shipping. Whenever possible we ship via USPS First Class mail for all items weighing 0-13 ounces. For smaller items that weigh more than 13 ounces, we ship via USPS Priority Mail (2-3 day delivery).

We ship larger, heavier items such as rebuild kits and torque converters, via FedEx Ground. FedEx Ground estimates between 1-5 business days (excluding Sunday) for delivery, depending upon location and distance from Oregon.

Shipping time depends upon when the order is received. Most items are shipped within 24 hours. Items purchased after 10:00 a.m. PST may not be shipped until the following day. Some larger item orders received on Friday after 10:00 a.m. PST may not be shipped until the following Monday.

For additional questions regarding shipping or any other inquiries, please contact Oregon Performance Transmission directly at salesdesk@optsales.com.

Posted on March 26th, 2016
Posted by Brian
No Comment »
Filed under: FAQ's, Shipping
Tags: delivery time, FAQ, FedEx, free shipping, Oregon, sales tax, Shipping, USPS

Mar

Product Showcase: ATSG Automatic Transmission Rebuild Service Manuals

[Reprinted in part from Automatic Transmission Service Group]

In 1985 Robert Cherrnay founded ATSG (Automatic Transmission Service Group) as a technical support service to the automatic transmission industry. Automatic Transmission Service Group (ATSG) is the largest technical support service in the Automatic Transmission Industry. ATSG manuals are the world’s foremost service guides utilized by professionals and technicians to troubleshoot and diagnosis problematic areas, disassemble transmissions and reassemble accurately and efficiently. ATSG manuals cover all aspects of transmission care, overhaul and rebuild procedures. Straightforward and simple to use, ATSG manuals will assist professionals and non-professionals alike with all aspects of automotive transmission care.

As a provider of ATSG products, Oregon Performance Transmission is proud to showcase their technical manuals and update handbooks that are written and produced by ATSG professional technical staff. Oregon Performance Transmission carries over 100 different manuals for over 40+ vehicle makes including Chevrolet, Ford, Chrysler, Nissan and Toyota, to name a few.

For a direct link to our ATSG website category, please click here.

Why ATSG?

ATSG has over 100 combined years of experience, knowledge and wisdom. ATSG technical manuals are in-depth, detailed and have assisted many technical professionals across the globe saving them tremendous amounts of time and money.

If you are looking to complete a band adjustment, torque specs, service a transmission, shift kits, or just doing a full rebuild on a unit, ATSG technical manuals are a must-have. The manuals cover many areas of transmission rebuild, including:

parts identification
exploded views
wiring harness locations
hydraulic routing
electrical diagrams
internal planetary components
how to disassemble a transmission
how to rebuild the individual components
torque specs
valve body identification
extension housing overviews
how to assemble a transmission, and much, much more

Our customers are routinely impressed with ATSG manuals and often recommend them to friends. Here are a few recently received customer reviews:

“Really good book on transmission specifications and assembly”

“Nice manual, quality product”

“Just as promised. Great book!”

“Everything I needed and then some. Very accurate”

What is the difference between the blue cover book and the green cover book?

The blue cover book is the standard transmission rebuild manual. This book will be your go-to guide for understanding and performing the process of transmission rebuilding. If you are planning to rebuild your transmission and do not already have this manual, this is the one you will want and need.

The green cover book the update manual. This manual is intended for diagnostic work and/or troubleshooting codes. While a few transmission updates are included in this manual, it relies primarily upon, and often refers back to, the original blue cover manual for rebuilding instructions. Many DIY-er’s will not need this manual as it is most frequently used by professional shops.

What about these CD-ROM discs?

Some of the ATSG manuals are no longer available in paperback form. Some obsolete books and/or less popular books have moved from book format to a mini-disc CD-ROM. These discs are easy to use and will fit in the small, inner disc circle of any computer disc drive.

Our ATSG service manuals now qualify for free U.S. shipping!

As always, should you have any questions about ATSG transmission products or need assistance in identifying your transmission, please feel free to contact Oregon Performance Transmission at salesdesk@optsales.com.

Posted on March 18th, 2016
Posted by Brian
No Comment »
Filed under: 2004R, 4L60E, 4L65E, 4L70E, 4L75E, 4R70W, 4R75E, 4R75W, 700R4, A727, A904, AODE, GM, Nissan
Tags: 2004R, 4L60E, 4L65E, ATSG, automatic transmission, Automatic Transmission Service Group, Chevrolet, diagnosis, diagram, dis-assembly, exploded view, GM, handbook, Oregon Performance Transmission, overhaul, performance, professional, rebuild, service, technical, transmission

Mar

Smart ways to extend the life of your transmission

With nice weather just around the corner, now is a great time to begin installing new upgrades for the sunny days ahead.

South Sister, Bend Oregon Photo credit: Oregon Performance Transmission

South Sister, Central Oregon
Photo credit: Oregon Performance Transmission

Repeated exposure to heat is the number one reason automatic transmissions fail. One way to extend the life of your transmission and avoid, or at least prolong a costly rebuild is to install a quality transmission cooler.

One of our consistent best-selling items is the Tru-Cool 47391 transmission cooler from Long Manufacturing – Dana Corporation. The 47391 cooler is rated at 40,000 GVW (gross vehicle weight) and measures 8.5″ x 22.75″ x 1.25″. This is a low pressure drop (LPD) unit with 3/8″ inverted flare fittings. This is truly the ultimate cooler for heavy towing and is a must for heavy duty applications, including racing. All parts and instructions are included to mount and plumb this cooler. Retail price is $200+. This cooler comes with a manufacturer’s limited lifetime warranty.

Tru-Cool 47391 40,000 GVW Transmission Cooler (part number LNG-47391)

Installation and compatibility information:

This cooler comes with all mounting hardware and fittings as well as approximately 30” of transmission hose. The cooler has 3/8” inlet and outlet fittings on the ends so you would typically use this with applications where you have 3/8” line.

The 47391 is 2 feet wide; it is a physically large cooler and it will need a lot of space. In terms of compatibility, it is not so much the transmission you need to be concerned about, it is whether or not you have the physical space to accommodate the cooler. Typically these are meant for trucks and SUV’s for towing and off-road use. Our Chevy, Ford, Dodge, and Jeep customers rave about them.

If you do not have 3/8” line, (for example the Chevy Duramax with the Alison transmission), you would either need to buy different fittings to adapt, or go with another cooler meant for ½” line. Tru-Cool’s H7B cooler is meant for ½” line and is a high end cooler that can actually be used as an engine oil cooler as well. It does not come with mounting hardware, fittings or hose, so you would need to buy those items separately.

Tru-Cool H7B 29,200 BTU Transmission Cooler (part number LNG-H7B)

If you live in an area that routinely experiences temperatures at or below 32F, you should consider using the Tru-Cool 40,000 GVW cooler that comes with the external thermal bypass. As with the LNG-47391, this cooler has 3/8″ inverted flare fittings on the ends, measures 8.5″ x 22.75″ x 1.25″ and comes with mounting hardware, fittings and transmission hose. It also includes the external thermal bypass valve that allows the transmission fluid to bypass the cooler until the transmission comes up to operating temperatures (approx. 180F +/-).

Tru-Cool 40,000 GVW Transmission cooler with External Thermal Bypass (part number LNG-4739)

In addition to the products outlined above, we have an extensive selection of Tru-Cool transmission coolers available here at Oregon Performance Transmission. We offer many additional sizes of coolers as well as units made for smaller vehicles.

As always, if you have any questions or need assistance finding the right cooler for you, please do not hesitate to contact us at salesdesk@optsales.com or visit us on the web at www.oregonperformancetransmission.com.

Posted on March 3rd, 2016
Posted by Brian
No Comment »
Filed under: 47391, Tru-Cool
Tags:

Feb

The Corvette Servo

Corvette Servo (part number NTP-K51828C)

Arguably one of the most inexpensive, yet most rewarding upgrades to your 700R4 or 4L60E (4L65E, 4L70E) transmission is the corvette servo. Right away you will notice faster and firmer 1-2 and 2-3 shifts. The corvette servo will give your transmission 50% more apply pressure, which is just what you need to keep from burning your transmission up under heavy load situations. The corvette servo is a must for any performance vehicle, for towing, RV, or off road use, and is a positive upgrade for any 700R4 or 4L60E transmission. Our servo is easy to install and can be done with the transmission in the vehicle. The servo comes with all of the necessary seals for installation; including the outer cover o-ring, as well as three pages of instructions with diagrams.If you have already decided to install a corvette servo, your next question might be whether or not you should use the corvette servo with the longer pin instead. Here’s how to decide.

Corvette Servo with Longer Pin (part number OPT-CV-Pin)

After a short amount of time, by 30,000 miles or so, the band has been broken in and the servo travel has increased a lot. Too much servo travel can cause a delay in shifting, a longer 1-2 and 3-4 shift, as well as a slide-and-bump-into-gear type shift. By 100,000 or more miles, the band is wearing out and then you are at the point where the servo almost cannot travel far enough. Once it is beyond the travel of the servo, it will burn up the transmission. The longer pin is designed to take up that slack and prevent the servo travel. You can actually test your current travel now. Just get underneath it and with a pry bar, push in on the cover of your servo. If it goes in more than 1/8″, you definitely want the longer pin. The clearance should be closer to around 1/16″.Please note: If you are installing, or already have installed, a shift kit, you will likely not need a longer servo pin. Most shift kits are designed to address the servo travel issue already.Another option to consider is the 4^th gear Billet Super Servo.

Billet Super Servo 4th Gear Apply Piston & Cover (part number SUP-K034)

The 4^th gear billet super servo is a tremendous product that addresses the 3-4 shift. You will find better holding capacity in 4th gear, as well as an overall firmer 3-4 shift. The servo has an excellent design that includes a lip seal on piston that allows for much less leakage, as well as a proper 4-3 (no drag) release. To top it off, this servo is constructed of billet aluminum and is built to last. The 4^th gear super servo in conjunction with the corvette servo will solidify your transmission shifts from start to finish while giving overall life to the transmission and vehicle.In some cases, we have noticed during installation that the 4^th gear servo does address some of the clearance problems as well as decreasing some of the servo travel; basically eliminating the need for the longer servo pin.

As always, if you have any other questions or need any product recommendations, please feel free to contact us at salesdesk@optsales.com.

Posted on February 29th, 2016
Posted by Brian
No Comment »
Filed under: 4L60E, 4L65E, 4L70E, 4L75E, 700R4, GM
Tags: 4L60E, 4L65E, 4L70E, 4L75E, 4th gear billet super servo, 700R4, automatic transmission, Buick, Cadillac, Chevrolet, Chevy, Corvette servo, GM, GMC, Hummer, Isuzu, longer servo pin, Olds, Pontiac, Saab

Feb

Product review

Recent review of our Powerglide Master Rebuild kit (part number OPT-PG-RB)

“My company purchased one of these kits for a customer’s 1963 corvette…It is by far the most complete set to do an overhaul. It is my first dig into a powerglide, and I’m glad that I convinced them to go for the better kit, instead of piecing it together”.

-Adam

Thank you for the feedback, Adam. We appreciate your business!

Posted on February 20th, 2015
Posted by Brian
No Comment »
Filed under: GM, Powerglide
Tags:

Nov

Recommended products for the 4R70W AODE 4R75E 4R75W transmission

Looking for products to upgrade your 4R70W transmission? Below is a list of the most popular products we sell for the 4R70W AODE 4R75E 4R75W transmission.

We offer two different rebuild kits, a standard rebuild kit and a high performance version. The standard rebuild kit is listed on our website under part number ORE-AODE-RB, and the high performance kit is part number ORE-AODE-RB-HP. The standard kit includes everything you see in the photograph below; clutches, steel plates, overdrive and reverse bands, the filter, the Transtec gasket set and the front and rear bushings.

OPT-AODE-4R70W-RB

The high performance kit includes all of the same products, however, the clutches are the high performance Red Raybestos brand and the steel plates are the black Kolene steels. Also, both the overdrive and the reverse band are in Kevlar with the HP kit.

OPT-AODE-4R70W-RBHP

With every rebuild, we always recommend a good shift kit as a compliment to the new transmission. For the 4R70W AODE 4R75E 4R75W transmission, the Transgo shift kit has proven to be a very effective upgrade. We have it listed under part number TRG-SKAODE. The shift kit helps address the overdrive band failure in this transmission as well as cleaning up the shifting, giving cleaner, more firm shifts. It increases the lube to some of the bearing areas, eliminating the bearing failures. It definitely helps keep the new transmission from burning up.

TRG-SK-AODE

TRG-sk-aode-4r70w

We also recommend installing a new separator plate with your rebuild. The Superior “Super Tough Plate” saves time and money by preventing costly No-Go’s and comebacks in the Late 2000-up 4R70W AODE 4R75E 4R75W transmissions by helping to eliminate plate cracking and cross leaks caused by constant pounding from the2-3 Accumulator Piston Spring Retainer on the stock separator plate. We have it listed under part number SUP-K092.

SUP-K092

If you do not already have one and you plan to do this rebuild yourself, we highly recommend the ATSG transmission rebuild manual for the AODE transmission. You can find it under part number ATSG-AOD-E. It is a paperback manual filled with exploded view diagrams, diagnosis and rebuilding instructions. We also carry the update handbook for the Ford AODE 4R70W 4R75E 4R75W transmission under part number ATSG-AOD-EU. It covers all changes that have occurred from 1992-UP including parts affected by the changes, interchangeability, and part numbers.

These manuals are a must for any DIY-er. Even the professional shops use these high-quality ATSG manuals.

ATSG-AOD-E

ATSG-AOD-EU

Part number SNX-SBK-F6 will be the Torrington bearing kit you will need for this transmission. It is recommend to replace the Torrington bearings. The rear #9 Torrington goes out in these transmissions very often so it is something you definitely want to change.

SNX-SBK-F6

If the transmission has many miles on it, you will want to consider changing out the electronics as well. Here are the parts you will need:

Shift solenoid pack, part number NTP-47871L
TCC solenoid, part number NTP-47870L
Pressure control solenoid, part number NTP-47879M

Instead of looking for electronics a la carte, we do also carry a complete electronics kit for the AODE 4R70W 4R75E 4R75W transmission, part number OPT-AODE-ELEC. This kit will contain the internal wiring harness, case connector, dual pack shift solenoids, torque converter clutch solenoid (TCC), electronic pressure control solenoid (EPC), the temperature sensor (included with the internal harness in years 1998 and up) the output speed sensor and the turbine speed sensor (in years 2004 and up). This kit makes it easy to purchase everything you need to change out your electronics in one complete package.

Finally, one of the problems with these transmissions is they don’t get the end play correct so everything is sliding back and forth uncontrollably which can cause a transmission to burn up way too soon. It is highly recommended to get rid of excess slop in the transmission by using this selective thrust washer kit, part number NTP-K47940.

All of the products mentioned above are in stock and available for shipment right away. Because there are slight differences in products based on your transmission year, be sure to ask if you have any questions about your application and parts compatibility. We are always available via email at salesdesk@optsales.com.

Posted on November 12th, 2014
Posted by Brian
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Filed under: 4R70W, 4R75E, 4R75W, AODE
Tags: 4R70E, 4R75E, 4R75W, AODE, Colony Park, Cougar, Crown Victoria, Expedition, Explorer, F150, F250, Ford, Ford Vans, Grand Marquis, Lincoln, Lincoln Mark VII, Mazda, Mercury, Mountaineer, Mustang, Thunderbird, Towncar, XR-7

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