Shift Kits

4L30E Transmission Shift Kit (1991-2004) TransGo

Fits 4L30E 1991-2004 Isuzu, BMW, Cadillac Includes correct fit 3rd Drum Support Bushing with installation tool and Pump Alignment tool Addresses Chronic Low Band failure, Slipping 1st and 2nd gear, 2-3 Cutloose, Direct Clutch failure. Improves and...

GM 4L30E Transmission Valve Body Shift Correction Package by Superior

GM 4L30E Shift Correction Package This valve body kit for GM's 4L30E deals with correction bellhousing gasket blowout and repairs case leaking in servo cores.  It will also help correct or prevent weak shifts, lock-up chatter, better lube, and...

GM 4L30E Valve Body TransLab Shift Kit Upgrade by Superior

4L30E TransLab Valve Body Upgrade Kit by Superior Transmission Parts Corrects or Prevents the Following Problems 2-3 Flare or Cutloose 3-2 Cutloose Coast Down Neutral Slam 2-3 Planet Failure Improves Overall Performance Helps Prevent Band Failure ...