January 27, 2025
Understanding 4L60-E Series Isolator Bore Wear & How to Address It
Tory Royce
Tool kit F-77754-SERV is no longer in production. Check with your distributor for availability.
Bench tool kits 77754-SERV and 77754-RM5 are available for reaming GM SERV (remanufactured valve bodies).
January 27, 2025
Tory Royce
See the Part Selection and Reaming Options Instruction sheet to determine which combined Sonnax parts and tool kits will repair your GM 4L60-E PWM and Non-PWM valve body