rear axle broke??

[s2per]

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?

[Dave Fernandez]

Hello Tim:

It is hard to believe that an axle will break on an Alpine or other Diesel MH. They are designed to take a lot of rotational torque. It was probably defective from the axel manufacture which eventually broke. I sorry to hear about the axel failure but it is an easy fix. You are the first I have heard of who has a broken axel.