Late AAM w/Discs to Replace HO52?

[bry593]

Nice work on your truck. You are pretty serious about it.....

I've "read" that the 2001-2010? 1 ton (11.5" AAM) measures 65 wms. The 11.5 is easily identified by a damper ring on the input yoke.

Rumor is the 2001-2010? 3/4 ton (10.5" AAM) measures 68 wms. There is no damper on the input yoke.

Another story suggests the 2001-2010 light duty 3/4 ton (9.5" AAM Semi-Float) also measures 68". This unit is completely different from the two 14-bolts listed above. In addition to LD 3/4-ton, it was also used in Tahoes, Escalades, Suburbans and other car-trucks. This is the one I'm hoping will work in my truck. I don't need a 400-500lb axle. That'd just be silly....

The above applies to single wheel axles, no duals and no vans. Vans are supposedly about 70" wms. Way too wide.

To be certain, I'll need to measure myself. I suppose I'll build some sort of jig so I can measure several different axles quickly at the salvage yard. I'm thinking a wooden 1x2x12" with two 9/16" holes and two sheet metal tabs to catch on the lugbolt threads. I can then pull a tape from one side to the other and get a fairly accurate WMS.

I'll report back when I get around to it.