Most any 4spd in Chevy truck up to 67 is a 420. Shouldn't be hard to find one. If it's open drive, go for that. One's on 2-tons have brake on back, can take off. thing you will still need 2pc shaft to get slip joint. OR, like my COE short wheelbase, it has slip joint bolted to back of trans and long part has the spline shaft on it to match. Harder to find, I'll tell you! Keep the GMC six, better engine. They are longer too, may have to modify mounts for Chevy to fit, but the rad clearance won't be problem if you use later six that way. Bellhouse between Chev and GMC, don't know? Didn't know about pedal linkage mounts either. Good auto and 250 six? :rolleyes:
