Lower control arm cross shaft compatibility

[BCash]

I'm in the process of rebuilding/upgrading the suspension on my '68 c20 right now and I have a question about the lower control arm cross shafts. I bought a complete subframe from a 73-87 squarebody to do a disc brake swap/5 lug conversion, but damaged the lower control arm cross shafts while trying to remove them for a bushing replacement.

The question - do the 67-72 cross shafts with metal bushings fit into the squarebody control arms that previously had rubber bushings? For some reason new 67-72 cross shafts are astronomically cheaper than the squarebody equivalent.

If they don't fit, I'll have to hunt down another set of 1/2 ton lower control arms since new cross shafts for 73-87 are just as expensive as an entire control arm.

Any help would appreciated!