Suburban frame question

[73burb]

Hello all,
Just joined and would like to give props to all the knowledgeable folks here. I am hoping someone will be able to help me out with my latest project. I have a very mechanical sound 73 4x4 3/4 ton burb but the body is on its last leg. I have found a very clean 86 1/2 ton 4x4 burb with a bent frame. I would like to put the 86 on the 73 frame but am having a difficult time finding
information on if the body mounting locations are the same and if this is a feasible option?
Any and all information would be greatly appreciated.