Product Description
A shift kit for GM's TH350 automatic transmission by TransGo, fitting all 250/250C and 350/350C units built from 1969 on, in both lockup and non-lockup versions. It is a valve body repair kit made in the USA under part number SK350.
It is intended to correct falling out of high gear when hot, third clutch failure, soft or late shifts, and cross leaks.