Made some careful measurements. And assuming the single wheel hub/rotor is in fact 3" from inside of rotor to WMS. (will check one out at NAPA to be sure)
P30 8 lug axle WMS width is 81.625"
Dual rotor inside surface out to WMS is 7.25"
Old 2 ton axle beam is about 9" narrower than a P30 beam.
My 19.5" wheels have 1.6875" inset.
Wheels with tires add 4" total to overall width of axle.
Top center of fender width is 72.125"
Narrowest width inside the lip of fender is 68" both front and rear near the bottom.
Width outside rear edge of fender opening is 70.5"
I guess 68" over all counting tires could work, might even get away with 70"
If it won't just work, then with wheels with another inch or so of inset might work.
Note that this axle will end up being nearly wider than the original,
So, sounds like we might have a viable solution for 1 ton single wheel disc brakes and an axle rated for 4,500 to 5,000 lb to boot.
Grigg
Last edited by Grigg; 02/27/2011 8:36 PM. Reason: clarification
