New ideas!!
Well actually old ones and some small new ones that might make the old ones work.
Go back to the very very beginning of this thread, I was thinking to adapt a 2wd hub/rotor onto a newer Chevy P-30 I-beam axle and spindles, that would then need to be narrowed.... lots of work
It also hinged on the combined design hub/rotor which I thought (and still think) was a lousy idea to not have a separately replaceable rotor. If I can accept that they are OK this might all work out..
So that first post instead of the rotor I listed look at this rotor
NAPA part # NB 4885580 it is the proper 1.5" thickness to work with the P-30 caliper.
Now, the new idea that might make this work simpler and with a bare minimum amount of machine work (and no welding) is a different I-beam axle.
The I-beam from an AD 2 ton and some 1/16" larger king pin bushings might adapt nicely to the P-30 spindles, steering arms, and caliper bracket. And the 2 ton axle bolts to the 1 ton springs without any problems or issue at all, it's also a pretty narrow axle already.
So still back to the problem of the 2wd rotor/hub doesn't fit without either machining about 1/16" off the inner bearing journal on the spindle. Or enlarging the bore in the hub to take a 0.109" larger bearing cone. (I think turning the spindles is going to be the better choice)
This is by no means a final plan or even proven, some questions are final track with, what to do about a grease seal, and do the parts actually fit like I imagine they will????
This would involve parts from 3 different trucks and none of the original 1 ton stuff.
We'll see how it goes.
Grigg