If you rock crawl your Jeep I would suggest AGAINST the Centerforce. Centerforce clutches have weights on them and are designed to clamp tighter the higher they rev. When was the last time you were crawlin over some rocks @ 5,000 RPM??? A good NEW stock replacement from Carquest or NAPA will do you great. I have a LUK Stock replacement clutch in my TJ with a 2.5 and 37's and it works great. You should be able to get a NEW not reman clutch for about 200 bucks.
ASE Master L1 Certified since '96
00 TJ, RockKrawler Pro 8 Coil-Over Stretch Kit (104") and some other "stuff"....
07 JK Rubicon 2 Door, RockKrawler 5.5" Long Arm "X" Factor lift kit, 5.13 Gears, AO Emissions canister skidplate, 1310 U-jointed driveshafts, 37" Mickey Thompson Baja Claw tires on Walker Evans beadlocks, ORF Front bumper, Olympic Rock sliders, Alloy USA front Cro-mo shafts