Turbo 425

TH400 TH425 Pressure Regulator Valve Kit | Sonnax | 1971-UP

TH400 TH425 Pressure Regulator Valve Kit for 1971-Up Units IF OE VALVE HAS THROUGH BALANCE HOLE, SONNAX VALVE CANNOT BE USED Sonnax Part Number: 34910-03K NO TOOLING REQUIRED High-mileage vehicles with GM TH400 and TH425 units often experience poor line...

4L80E TH400 TH425 Rear Unit Endplay Shim | Sonnax | .005'' | 10-Pack

TH400 TH425 4L80E 4L85E Rear Unit Endplay Shim | 0.005'' Thick Sonnax Part Number: 34006-05 NO TOOLING REQUIRED Sonnax offers two solutions for excessive endplay in GM TH400, TH425, 4L80-E and 4L85-E units. Sonnax rear unit endplay shim 34006-05 can be...

GM Pump Alignment Band Tool

GM Pump Alignment Band This universal pump alignment band will work for the following transmissions as well as some others: 250, 250C, 350, 350-C, 375, 400, 3L80, 3L80-HD, 425, 475, 700-R4, 4L60, 4L60E and PowerGlide

4L80E TH400 TH425 Extreme Duty Forward Clutch Hub Kit | Sonnax

4L80E TH400 TH425 Extreme Duty Forward Clutch Hub Kit NOT COMPATIBLE WITH 1964-1966 TH400 MAIN SHAFTS WITH MAJOR DIAMETER OF SPLINE ABOUT 0.980''. TO USE THE SONNAX HUBS IN THESE EARLY UNITS A 1967-LATER MAIN SHAFT WITH MAJOR DIAMETER OF SPLINE ABOUT ...