on my Ford, the fill plug is on the drive shaft side, top left, looking forward from driver's seat. It is drained by removing the rear cover.
Blair
Hi....
> I want to change oil on my rear differensial, and need some advice. There
> are no drain plug and no filler plug on the back cover of the diff. Where is
> it? It must at least be a filler plug I suppose. It is marked Axle 19 on the
> ID markplate on the drivers door. Which axle does the car have?
> 1988 E150 302 EFI
> Tor Elling.
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