| How many miles on the NA rear end donor? MT90 is for transmissions - for a LSD you should be using 75w90 GL4 or 5 gear oil I typically inspect diffs by hand when off the car - LSD when worn out will not have much IF any resistance when turning the outputs in opposite directions - the oil will also smell scorched. I think that rebuilding isnt cost effective even if possoble - you're better off w. another known good diff.
 Bernie Bilski berniebilski@cox.net 1995 Nissan 300ZX TwinTurbo in Cobalt Green 1997 Nissan 240SX SE in Ultra Red ZCCNV #390 ~ ECZA #368 
|