[davepl]

If this was a small block truck and now carries a big block, did you get the correct frame pedestals? I don't know the precise difference, but if the small block ones are taller, which I suspect they might be, then you're never going to get it high enough in the back without it hitting.

Also, how did you 'lower' this truck? With new spindles or has the body's position relative to the frame changed?