Need to replace the clutch on my 1986 CJ-7, 258, T5 transmission. There seem to be many places that sell complete kits, just have to know what size it is. I can replace it myself. Just can't leave the Jeep unassembled again in the middle of the garage while waiting for parts. Anyone know how to tell what size the clutch is with out disassembeling it first?

I think either will work if you are swapping disc and cover. Disc only, you need to know what size. IMHO, change both and go 11".

When i put a new clutch in mine i just took the old disk to Napa with me and had them use it to get my new one. They had the replacement disk, bearing, and pressure plate in stock

I have had my 1985 CJ-7 out and it is a 10.5", but it sure looks like the flywheel is drilled to accept either. My Son's CJ-7 with a 304 is the same way but I have no idea what year that motor is or where the flywheel came from and have had that out way too many times (never been the T-5's fault), changed a broken bellhousing Thanksgiving weekend.

If it's still stock, would bet it's 10.5".

Dale

BTW I have had both sizes in my 81 CJ-7.