Change the oil in the differential?
2001 gassser, Ford, 54000 miles. Recently my mechanic suggested changing the oil in the rear/pumpkin/differential. Said there could be rust in there...and it would be a good PM. (anyway). I've NEV...
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When I purchased my coach last year with no service records I changed the rear diff. Cheap insurance and personally I don't think many ever change it.
