Since you say you've got the timing cover off to look at the timing set, you'd be well ahead of the game to go ahead and install a NEW timing set and get rid of that old nylon gear. Buy a timing set for a late 80s Jeep 4.0 and that will get you a true roller timing chain that's a direct replacement for the original 232 stuff. The longetivity of the Jeep 4.0 engine is mostly attributed to the fact that all 4.0 engines came equipped with the roller chain from the factory. Jeff Reeves Auburn GA 94 Cherokee 79 Spirit GT 72 Javelin SST 69 Ambassador DPL _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list