@mobileortho: I'm finding that looking for anything to do with this old 3600 is like finding a needle in a 160 acre hayfield. If you buy two of the 4 link setups, I'll send you my address
It's really not to bad, I have one myself. There is actually alot of the 3100 stuff that will swap over but it gets kinda tricky when it comes to some of the suspension components. The rear springs on 3600s mount on top or the axle, the 3100 mounts beneath. If you want to use the 3100 springs check out another member here, BIG CHEVY 3600. He swapped them on his truck.
