So has anyone ever thought of taking they're diff out, welding the housing shut around the spider gears, tapping a hole and plug into it, and filling it with, oh say, 50,000wt silicon oil? Liquid limited slip diff with 0 breakable limited slip parts (besides leaks).... Hey, it works good on my 1:10 scale truck! Joshua Hignight Student Services/Technical Services New Mexico Campus (505) 821-4800