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Powerglide, TH350, TH400, Muncie M20-22 all use the same crossmember. There was an M21 in my 70 when i got it, i put a TH400 in it. The crossmember needs to be relocated back out 4 inches. There is a second set of holes predrilled in the frame. You'll also need to have the driveshaft shortened. Tom ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]

