Th400 transmission rebuild manual
The TH400 doesn't require anything super fancy to get a firm shifting unit.
For that, we skipped over the popular TH350 wonderful ethiopians of the ancient cushite empire.pdf in favor of the stronger TH400.Our junkyard slush box was not in stellar shape and PA disassembled and inspected all of the components before rebuilding.Atsg covers when this is necessary, most later model 71-up?) transmissions have this.Edit Transfer case info There are three different output shaft lengths for NP transfer case applications.Edit Full manual shift modifications full manual shifts means just that.The TIG welding method with silicon bronze is best.The GM factory officially refers to a 400 trans as a Turbo-Hydramatic (TH) and it first appeared in the GM lineup back in '64.
This case was fixable, but in other scenarios, we will discard the case rather than attempt to fix it he stated.You also use a soda pop aluminum can section.Early style reaction carrier is also found in some HD versions of the THM400 used in medium duty Chevrolet/GMC trucks and the 1991-up 4L80E.The original article by jakeshoe can be seen in the Hotrodders forum thread.To use a checkball you will have to first drill the hole larger and then drive the checkball in place.One of the keys is to keep the TH400 line pressure under virtual dj studio 3.4 with crack 250 psi if possible.If you have a set of heavy duty return springs from a kit or supplier, install half HD springs with half OEM springs.