Join Date: Sep 1999
Location: Vancouver, Washingon
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Re: Which Clutch -TPI 350 + T-18?
Generally, GM offered two sizes of clutches. The Camaro / Firebird is usually 10.4". The GM 1/2 ton pickup is usually 11". So I'm thinking the clutch size and friction disc spline count is where the conversion gets tricky. The Ford T-18 is usually 10 spline, while the Camaro / Firebird is usually 26 spline. Let me know what size your flywheel is (153 tooth or 168 tooth), and I should be able to suggest the correct combination of parts. My 80 CJ5 has a Chevy V8, Lakewood bellhousing, 168 tooth flywheel, and 11" clutch.