[bikestuff]

Yes....I went out and crawled under to look for pinion seal leaks already and am planning for a fluid change. I don t mean any ill intent but it seems that if Bills axle died from lack of fluid the leak should have been obvious to anyone servicing the underside of the coach. I had a pinion seal leak on my Chevy K 2500 and you could see grease all over the bottom of the truck in the axle area. I think the lesson here might be for us to be observant and if somebody else services your coach specifically ask for a diff check.

Yes!  That is the lesson to be learned!  Don't assume that no oil on the ground means anything.  You really have to look at the engine, transmission and differential (along with the axles).  If you see oil, you should figure out where it is coming from and then check to make sure that you have oil in the right places.  

I am suspecting that this will be an expen$ive lesson but will be happy if I encourage others to avoid my fate.