125/125C (Superior K125 )
Shift Correction Package
This valve body kit deals with these problems: * Late shifts * Weak shifts * Band failure * Harsh downshifts * Converter shudder * Front seal problems
1. A "Ben Law" accumulator check valve is supplied in the kit to give a much quicker release of the band when shifting into 3rd. This valve, combined with the servo return spring supplied in the kit, saves the band from premature failure. 2. A specially designed drain back valve installs into the cooler line to stop converter drainage. This is a "must" for older units. 3. The kit modifies early auxiliary valve bodies to eliminate lockup problems which are very common to these units.
Note to purchasing: Ask for Superior part number K125
Works in following transmissions:GM