Which Clutch -TPI 350 + T-18? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 03-08-2005, 11:04 AM Thread Starter
 
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Which Clutch -TPI 350 + T-18?

I need some help finding the correct part numbers for the clutch/pressureplate/throwout bearing. I have a tuned port injected 350 from a 1990 firebird. I am attaching it to a t-18 transmission from an older jeep using advanced adapters bellhousings. Has any one done this conversion and has their clutch part numbers laying around? Any advice?
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post #2 of (permalink) Old 03-10-2005, 07:47 AM
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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.
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post #3 of (permalink) Old 03-12-2005, 05:49 PM
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Re: Which Clutch -TPI 350 + T-18?

Not trying to be smart, but have you asked advanced adaptors? Don't settle for thier BS answer of "We have a special clutch, bearing etc". Tell them you want an application for the part or a part number. If they refuse to help you, it is a simple matter of looking up disk diameters and splines, pressure plate diameters and mixing and matching. Finding the through out bearing and pilot shaft bearings may be tricky part.
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