4 wheel drive class c

j-d wrote:
If you jack one rear wheel off the ground, even with that Shaft Brake set, it can roll down off the jack because the wheel still on the ground can roll. The wheel you jacked up will turn in the opposite direction from the one rolling.

Hmmm .... :h :E :M

I guess I REALLY have to scratch my hear over that statement and also rethink how the standard differential ring gear and axle mechanism operates to make sure I'm sane.

You mean that when you jack up one side of the rear of an E450 with a transmission mounted drum emergency brake engaged to change a tire that the emergency brake will NOT keep it from rolling off the the jack?

If so, doesn't this also then mean that when you jack up one side of the rear of an E450 with the transmission in PARK that it can even then still roll off the jack?

Maybe I gotta have another cup of coffee, but so far something doesn't smell right here:

1. How can it roll off the jack without the jacked axle having to turn the locked driveshaft (... locked from the drum emergency brake at the transmission and/or the park gear inside the transmission)?

2. Where are all the lawsuits against Ford from owners of E350 and/or E450 chassis (and/or other Ford truck chassis) with transmission mounted drum emergency brakes and/or who put their transmission in park gear - but still had their vehicles roll off jacks?

(I apologize for my dumb comments here if I'm missing something obvious, in which case please clarify further.)