Quoted from o-din:When I built my last 401 powered CJ7 about 15 to 20 years ago, I installed a T-18 4 speed out of a full size truck using Novak's input shaft kit. Been so long I had forgotten where I got it till yesterday. To top it off, the trucks had 11 inch clutches and at the time I had to search super hard, but found one and put it in the CJ.
Everything else for the engines and such came from a one stop PAW catalog. I have certain brands of parts I like to use and there is no more one stop shop to get them all at a good price. I've ordered from so many different sellers over the last couple weeks I lost track. And the new version of the 11 clutch is now a worthless piece of made in Korea junk that wasn't assembled correctly and won't work with an AMC flywheel period. And the pilot bearing is also off a bit. I'm just going with whatever Novak has for a 10.5 clutch now. The 11 inch is now officially obsolete.
Novak knows their shit, I would go with whatever they recommend.
We had an auto parts store & machine shop back in the day. Used to be that aftermarket parts were almost always better than OEM. Not the always the case anymore. I watched many good old trusted brands get bought out, then the buyer sourced garbage overseas parts & rode out the brand until people figured it out. Time & time again I saw this happen.