Nissan viscous lsd Nissan 240SX Performance Modification/Differential A viscous differential works by heating a thick fluid, making it expand. The diff has 2 plates close together (one for each axle), similar to... Source Source Source Source Source Source Source Source Source Source Read Also: Nissan viscous limited slip differential Nissan r200 viscous limited slip differential Nissan 370z viscous limited slip differential Nissan r200 limited slip differential How to shim up a nissan r200 viscous lsd Nissan pulsar viscous lsd