viscous slip differential

Red370

the Viscous LSD, no, everything else, great value. Viscous LSD's are garbage, overheat quickly and lose effectiveness, there have been alot of problems with the stock LSD, check out the track threads.

And Quote:
"Viscous LSDs are less efficient than mechanical types, that is, they "lose" some power. They do not stand up well to abuse. In particular, any sustained load which overheats the silicone results in sudden permanent loss of the differential effect.[5] They do have the virtue of failing gracefully, reverting to semi-open differential behaviour. Typically a visco-differential that has covered 60,000 miles (97,000 km) or more will be functioning largely as an open differential; this is a known weakness of the original Mazda MX-5 (a.k.a. Miata) sports car. The silicone oil is factory sealed in a separate chamber from the gear oil surrounding the rest of the differential. This is not serviceable and when the differential's behaviour deteriorates, the VLSD centre is replaced."

In closing, dont buy it for the LSD, buy it for Synchro Rev Match/Wheels, etc.
Best LSD's in my opinion are the 1.5 way Carbonetics.

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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs