Re: Help on axle info. ----Please !!!!!
Post by tomcat on Oct 23, 2006, 3:29pm

Dont know which axles are in a Class C motor home.
My recomms:
Check for the gearing, 4.10 is minimum, even for street, for everything 35" and up. The gearing you can change, but then more money is involved
Check for the width (flange to flange) and compare it to the original axles, if its wider it will work but the tires will stick out more. If its more narrow things will get complicated.
Check for the front differential, if its pass. side like on the M715/725.
Check for the rear differential, if its center mount its ok. If its pass side offset, maybe you can use it, depends how much. If its driver side offset (not common) skip it, or you have to think about remounting your fuel tank.

In the front you should have a Dana 60, a Dana 44 is too weak. In the rear it should be a GM14bolt, Dana 70FF if you want something strong.