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Again with a newby post.
I want to change out the differential oil on my 1994 Motorhome based on an E350 7.5L 460. It has the Dana rear 4.10 ratio. I bought it used with 38,000 miles on it and probably has never had it changed. Since it is a motorhome and heavy should I use Synthetic GL-5 SAE90 hpoid oil like Motul or go heavier than 90 since it is a MH?
I have the Haynes manual but cannot find anywhere what the capacity is back there. Thanks again
If your Diff cover doesn't have a from plug, just pull it off and clean doth sides with a scraper then Brake Cleaner and use Black Silicone to seal it up. Following the directions on the Silicone.