Shift Kits

TH125 125C Transmission Valve Body Shift Kit (1980-2000) TransGo

SHIFT KIT® Valve Body Repair Kit Fits all GM Turbo 125 Transmissions General Motors vehicles equipped with Turbo HydraMatic 125 and 125C automatic transmissions often suffer from premature band failure, 3-2 downshift clunk, reverse slip / shudder,...

GM TH125 Transmission Valve Body Shift Correction Package by Superior

Turbo 125/125C Transmission Valve Body Shift Kit 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,...