Engine/Transmission (1998.5 - 2002) LSD turned soggy rice

[LStanphill]

My LSD does not appear to be working anymore. I had used valvoline 75-90 synthetic for first 60k, then I notied that my left wheel would sit still while the right spun away. I then tried 80-145 with and w/o the modifier.

Any ideas or am I SOL?

 

[Gary - K7GLD]

This goes hand-in-hand with a point I was trying to make a few threads back - lotsa guys figure if their LS doesn't chatter after a lube switch, they're home free - overlooking the fact that just maybe they no longer have an active LS because the new lube is TOO slippery...



If I were you, I'd drain and refill with a standard dino lube with NO additive, and run it for a while that way - allowing enough time for the new lube to fully coat and penetrate the differential clutch material and return to normal operation - if at some future point the LS begins to chatter, THEN you can add additive - but it might take a while to reach that point, so be patient...

 

[Sled Puller]

Try 6 tight figure 8s in a parking lot, then see.