Call PATC at for all of your transmission parts, transmissions and torque converters. We now have a short 2WD R4 tail housing making the transmission 27 inches long. This information is provided for the non-transmission mechanic to help them identify the problem, know how much the job should cost and how to have the problem corrected. This information could save you hundreds even a thousand dollars or more.. This transmission has been in use since This means there are plenty of used, rebuilt and new hard parts available at low prices.
Transmission Tech Info
TH Specs, Info, and Identification | Drivetrain Resource
The purpose of the Transmission Tech Page is to provide free accurate information pertaining to GM automatic transmissions. The tech page will grow to be several articles about specific units and the specific mods and the reasons to do those mods. Visit often for updates. This question is hard to accurately answer. It varies due to converter size, pan depth, cooler and line size, fresh build or service, and other variables. Add 4 qts on most units after install, start the engine, and then add qts and start checking the level.
TH400 Transmission Specs, ID, and Common Problems