What is the size of my stock size block? Is it 3 inches? Not sure? Anyway, I was thinking of swapping out to a 5'' block. Would I be correct in assuming that I would gain 2'' in height at the rear end? Also, what processes, hardware, etc would be involved in the swap, and where might I get this new block? Finally, would there be any differences in ride, or any increase in payload?

 

It is a 2 inch block. Most of the suspension companies make lift blocks which include new, longer u-bolts.