Does the vari loc rear diff wear out and does it make a noise like the brakes are hanging up?

Yes, the Vari Loc rear differential can wear out over time, especially if it’s not properly maintained or subjected to heavy use. Symptoms of wear might include unusual noises, which can sometimes resemble brakes dragging or hanging up. If you're experiencing such noises, it's advisable to have the differential inspected, as it could indicate internal issues that may need to be addressed. Regular maintenance can help extend the lifespan of the differential.