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lindstromjd · 10-24-2011, 02:17 PM

All TH350's have the same bolt patterns as long as they're Chevy/GMC (I think the oldsmobile ones are different?). The tailshaft housing is what you're going to want to look out for. Just measure how long yours is, and make sure you get the same size as a replacement.

10-24-2011, 02:17 PM	#7
lindstromjd Gentleman Jim owner x2 Join Date: Oct 2010 Location: West Des Moines, IA Posts: 464	Re: Help with tranny problem on '77 305/T350 All TH350's have the same bolt patterns as long as they're Chevy/GMC (I think the oldsmobile ones are different?). The tailshaft housing is what you're going to want to look out for. Just measure how long yours is, and make sure you get the same size as a replacement. __________________ 1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350