How does a SUBARU viscous limited slip differential (VLSD) work?

A limited slip differential permits slip (i.e. a difference in rotating speeds) between its two outputs (for example, wheels) before it starts to try to force both wheels into rotation.

SUBARU Differential

Articles and information about SUBARU vehicle differentials, how they work, and more.

Typically a SUBARU differential receives its power input from the transmission, and then drives two wheels with its output.  One purpose is to allow for a difference in rotation speed between the two driven wheels while cornering.  AWD (all-wheel drive)SUBARU's have a separate differential front and rear wheels.

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