GM TH125 Transmission Valve Body Shift Correction Package by Superior

Product Description

Valve body shift correction package for the GM Turbo 125/125C (TH125) transmission. It corrects or prevents late shifts, weak shifts, band failure, harsh downshifts, converter shudder and front seal problems.

How it works

A "Ben Law" accumulator check valve in the kit gives a much quicker release of the band when shifting into 3rd. Combined with the servo return spring supplied in the kit, it saves the band from premature failure.