Rear Axle Lubricant Leak Diagnosis: Notes

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Rear axle lubricant leaks can occur at the following locations:

Axle tube to differential carrier housing joint
Axle shaft oil seal
Axle housing porosity
Differential housing cover gasket
Drain plug
Fill plug
Pinion yoke oil seal
Vent tube