Originally Posted by jesilvas
Drive with no fluid in the diff?
Yes. All surfaces are coated from previous oil and there is no heat buildup moving the coach a few inches. And......he did get over 10 qts back in as she sits.
Found this info in an old thread from Mike Canter:
"It is very important that after you fill it that you drive it and get the oil warm and check the level again because the oil flows out into the outer wheel bearing hubs through small holes. To get the oil through these small holes correctly the level has to be maintained all the way to the bottom lip of the filler plug and not a 1/4" or a 1/2" down."
I think I would take Twomed's suggestion on driving up on boards and adding what is necessary. And, being somewhat "anal", would then drive it until the oil warmed up and re-check it just to be sure.