I rebuilt my first THM350 in 1970 at the GM Training Center in Tarrytown NY. At the Chevy dealer in the late 70's, I did 87 THM350 rebuilds under a torrington bearing to case recall. Then came the THM250,375,400,425,700R4 and many others. Save your money, in a long run you are better off having a good trans shop do up a THM350 with a shift kit. Just my 2 cents.

Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.