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GM Automatic Transmissions

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100,000 Mile 36 Months Warranty. Shipping World Wide!

Running damaged or worn out Automatic Transmission is dangerous and may cost you big money.

Automatic transmissions for Chevrolet and GM applications are available. We re-manufacture the most popular line of Heavy Duty Series Automatic Transmission and Torque Converter Packages for Chevrolet and GM pickup trucks, vans, motor homes, 4WD pickups, and automotive applications, both domestic and import. Hydraulic and electronic controlled units are available. In our warehouse, there is a large supply of automatic transmission and transaxles prepared for delivery. Transmissions are available for Chevrolet and GM Gas and Diesel as well as Cadillac Escalades and Hummer. Use our online shopping cart, just click the part number and see additional information, add to cart or proceed to check out. If you need more information or cannot find the transmission you need, give us a call 888-824-2014.

WHY AUTOMATIC TRANSMISSIONS FAIL

Automatic transmission failure in your Chevrolet or GM vehicle may be caused by low fluid level; contaminated fluid brought on by heat buildup and non metal part degradation; and clogging veins in the valve body, pump, and torque converter. When exchanging your automatic transmission make sure to flush the fluid from the cooling system, including lines from the transmission, towards the radiator as well as the reservoir beneath the radiator a minimum of a couple of times while using the correct chemicals. When adding automatic transmission fluid or changing your transmission fluid, double check and make certain the manufactures recommended fluid is used. You will be amazed how many times the incorrect fluid is used leading to an on-slot of problems.

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FACTORY BUILT ENSURES CONSISTENCY, QUALITY AND LONG LIFE 3 YEARS – 100,000 MILE FACTORY WARRANTY

Our automatic transmission rebuild services are performed by experienced transmission technicians. A transmission rebuild, also referred to as an entire transmission overhaul, involves the complete removal and disassembly of your transmission. Each part of the transmission being rebuilt is inspected for wear and damage. Reduced service expectancy components will always be swapped out no matter their condition. All other components that don’t have brand new potential service life are replaced with the best parts available. Compliance updates are installed to enhance maker’s designs to repair problems found after the vehicle has left the factory.

During the rebuilding of your transmission, all gaskets and seals are replaced with new ones. All new clutch fractions are part of a complete rebuild and are always replaced throughout a proper overhaul, including bands, electronic solenoids seals, bushings and gaskets. Valve bodies are disassembled, cleaned out and inspected. All balls and springs are changed. Specific attention is paid to the planetary gear set, including sun gear, annulus ring gear, planet gears, and planet carrier. Parts showing wear are replaced.

To guarantee the highest level of quality we use the best parts and torque converters available together with highly trained technicians to rebuild re-manufacture your automatic transmission. We’re able to factory build your automatic transmission to your specification, including heavy duty towing transmissions with robust bands and clutch frictions, shift kits, and external cooling systems if desired.

We offer numerous types of torque converter choices. All rebuilt units are provided with stock/OE torque converters. Optional torque converters are available, including converters to satisfy your specific stall, lockup, horsepower, and torque requirements. Matching your vehicles desired overall performance using the correct torque converter specification is critical. Be sure to consult our Drivetrain expert at time of the order to ensure you get the converter required. All units are Dyno tested prior to leaving the factory.

You can extend the life span of your automatic transmission by installing an auxiliary transmission cooler either under the vehicle next to the transmission or behind the grill. Another good idea if you are towing heavy loads would be to monitor the transmission by using a temperature gauge. We recommend you put in the sensing unit in the output side cooling line as it leave the transmission headed to the radiator cooling reservoir.

We offer the following Automatic Transmission Models for Chevrolet GMC TH350, TH400, 700R4, 4L60E, 4L65E, 4L80E, 4T60E, 4L30E and Allison T1000 and many more. Prices may vary depending upon your torque converter selection. Please check at time of your order. At the time of the order, please provide the VIN number. Aren’t seeing what you need? Simply give us a call at 888-824-2012.

Use our online shopping cart, just click the part number and see additional information, add to cart or proceed to check out.

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Take a Automatic Transmission Factory Tour

Experience plus Quality parts equal superior quality and long life Automatic Transmissions.

If you’d like assistance with your automatic transmission or are having issues diagnosing the problem, give the Drivetrain expert at Midwest Transmission a call at 888-824-2012. We have the answers you’ll need. Don’t see what you need or want us to build your core? Just give us a call. You supply the core and save the core charge.