4L80-E, TH400 Case Saver Retainer Part No. 34762-10 Sonnax case saver retainer 34762-10 for the GM TH400 and '98-earlier 4L80-E is the…
4L80E Smart Tech Overrun Clutch Valve Kit 1997-up Insufficient holding power in the overdrive roller clutch is the underlying cause of…
This 400, 4L80E Billet Aluminum Direct Drum is manufactured specifically for drag racing Comes complete with: Billet aluminum piston and 3 Sure…
4L60-E, 4L65-E, 4L80-E EPC Solenoid Harness Adapter Part No. 34435-01K For use with early-style ('92–'02) EPC solenoid in late-style (’03-later) units, solenoid…
Heavy Duty Main Shaft Main shaft failure is a common problem in performance and heavy duty GM TH400, 4L80-E and 4L85-E…
4L80-E Case Saver Retainer Part No. 34762-20 Fits '99-later 4L80-E. Sonnax case saver retainer 34762-20 for '99-later GM 4L80-E units is the only…
4L80E Transmission Overrun Drum With Sungear Fits 1991-2000 Units Stronger than the 2001-up Drum Upgrade 2001 up Unit by switching to this drum…
4L80-E, 4L85-E Heavy Duty Input Shaft Part No. 34670-01 Input shaft failure is a common problem in performance and heavy duty GM…