Welcome from the other side of the state Sparks!
I don't know what would fit, Madmike may have a good idea on stock suspension. Long shot, If you knew someone down around Chetopa ks.(about 130 miles due south of you) their use to be an old boy that had a lot of 33-35 Chevy parts. He died years back but i can't remember who was handeling his estate. They may be gone by now, fella told me 3yrs ago there were still parts left?
Sammons
Sparks, i found this on Hemmings Motor News. Looks like spindels are interchangeable on '34 Master with 34-38. Hope that helps.
Maybe someone can post this link. Interesting artical with interchangabilitiy of Chevrolet spindels from '28-'90.