[rotorwrench]

Itslow has a point. For spring over axle a person would have to use a narrow rear spring than fits over the mid section (unobtanium). Extend the frame 7.5" to include a crossmember for behind axle spring support. Use a narrowed 35 or 36 rear axle to get the spring hangers on the radius rods so the axle bells can be shortened. Do a Hot Rod Works axle and bearing conversion with custom splined axles and the splined side gears for the differential carrier. While your at it, find a quick change unit center section for that hot rod look. Use a shortened tubular drive shaft with the front spline stub from a 1935 drive shaft. Shorten the torque tube to match the drive shaft.

This type of stuff has been done before but the HAMB is more friendly for such things to a point. Whoever did it first didn't have the HAMB to ask questions to. They just dug through the local salvage yards and found stuff that would work. A 1990 thru 1992 Ford Ranger rear axle is as narrow as a old Mavrick/Comet set up. Get custom axles made and find a way to connect it all in.

If the problem is with the wheels as the root cause then get some custom back spaced wheels. The old aftermarket Ford style Kelsey Hayes wheels were laced and not welded. A lace type wheel has a lot more possibilities than a welded spoke wheel.