swapping cabs on my 73

[pcwillsie]

I know i have seen the answer to this question once before but lost the thread and cant find it. ok here i am fixing to get back to work on my 73. I am fixing to swap out my non air rusted out cab for a good cab i picked up that is an air cab from an 87. my question is do I need the cab mounts to match the frame or to match the cab when i do this?

[xrcr]

I am switching a 76 to an 84. This is what I'm going to do. I am going to match the bushings to the year of the chassis. The screwed up part is I swapped out two of the perches so I have to buy some 76 and some 84. The later model holes are a little smaller. If I'm wrong somebody will straighten me out.