36 Dodge Tube axle ?

I had one on my '29 2 door in '72.

 

If anybody is still looking for one of these, I have a few that I've collected over the years, and could part with one for the right project. Thanks

 

What are the caliper brackets from you modified?

 

FWIW, I built a trailer out of one of these about 40 years ago. IIRC, I was able to put early Ford hubs on the stock spindles by turning down the inner bearing surface on the spindle and using '65 Ford (I think) inner bearings.