Quote Originally Posted by Silver View Post
The manuals say that certain models need Dexron II (or is it III) in the front diff - and that is because the thinner oil stops the auto hubs engaging by themselves. The Dexron is the Jap Dexron.
The hubs and CV's are lubricated by grease, the diff oil is kept out of the hubs by a seal in the ends of the axle tubes. If there is diff oil in the hubs then the seal is leaking and needs to be replaced.

Tony