We had an unusual failure the other day while heading to Gainesville for tailgating. About 30 miles from home we had a rhythmic thumping from the left rear of the coach at highway speed. I slowed for a traffic light, then accelerated normally and suddenly no forward push; just engine revs in drive or reverse. A tow to a friend's transmission shop ended our camping for the weekend. (We DID go to the game, of course....
Today we looked at it more closely. What I failed to notice was that the driveshaft was turning (well, I wasn't laying under it before) and the trans was actually shifting up. But the left side axle shaft sheared and allowed the power from the diff to just spin it inside the housing. I was SO grateful that I wasn't looking at an Allison rebuild/replacement!
Anyone else ever has this failure?