Same thing with mine. I replaced the front bearing with one from NAPA, and bought a small parts kit. Rebuilt it using the manual floating around on this site, and it is good to go. Tough little trannys.
'85 CJ7, BDS 4" lift, 1" Body lift, 33x12.5, Shrockworks Sliders, 304 V8 with RV cam., T-176, D300, Dana 30, AMC 20.
1986 CJ10-A SD-33 Diesel/727/np208
1971 800B with 345/T-19
06' TJ Rubicon, 4" R.C. springs, BFG/AT 35s M.C. 6" fenders, rockers and surrounds, Currie front & rear adj. tracbars, tattons DC rear shaft, adj. upper - lower CA's. Bilstein 5100's
YJ Buggy Build
Current project. Stroker/FI ?
1990 MJ Comanche 4.0L AX15/np231