[GMCMAX]

Firearmfiend,
the rear was leaf already. The front front hangers are riveted to the core support mounts on 4X4, I knocked off the 2wd core mounts and bolted the 4X4 spring hanger/core mounts in. From there just measured the spring length and set the rear mounts accordingly. My bellhousing bolted to the crossmember underneath it, but the crossmember interfered with the front spring mounts,so I had to remove the crossmember. The t/case and trans have a mount under them to the crossmember I installed there, so that's what now holds the rear up. Rivets are a pain to remove, but after nicking the frame with the torch, I drilled through them with a small bit, then took a larger 3/8"? bit and drilled to cut the head off then used an air punch to knock the other part out.