Originally Posted by DesertRat

I have a JRXS-R that I intend to run rubber tire on carpet with, my problem is that I have tried a front spool but the feel of the car with a diff in the front is more in-tune with my style, but only when its tight instead of a more open diff. In running the diff as tight as it needed to be to limit the slip it wore out very quickly, becoming gritty in the course of a few runs and ruining the thrust bearing. I have tried using thick black grease in the diff but it was only marginally better than the standard white diff grease. Ideally I could replace this with a gear diff with thick fluid but no such thing exists for this older car, so what do you think my best course of action is to slow the diff down without destroying it? Any help is good help.