Frame swap questions

[CG]

Im sure this has been asked before but Im hoping someone knows right off the top of their head. And I realize some of you might think this is a bad idea but that isnt the question.

A friend just called me and asked this. He wants to know if you can take body off of a 68 K Burb and put it on a 72 C coil spring truck chassis. Wondering what all he has to change.

Then he wants to know if he can put a 71 truck cab and box on the 68 K Burb chassis. Ending up with a 4x4 truck. Again what all needs to be changed.

I think hes hoping maybe only the rear frame horns and body mount points need to be changed for both of these swaps to work.

Thanks for any insights!