I just looked up this in my service manuals but it is not addressed.

At least I couldn't see it.

Are the half shafts and spider gears lubed through the shaft with diff lube? I don't see how it is done otherwise unless they are packed like wheel bearings.

Packing them does not seem too logical based on the cross sections of it.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.