A couple of Questions about my 91 Buick Roadmaster

I had a couple of questions about my Roadmaster. First will the doors off a 93 4-door caprice fit on my roadmaster. I believe they are the same but not 100% sure.

And the second question I have is what is the purpose of running tublar A-arms on the roadmaster or caprice? Is it to help give more clearance so you can layout with a larger wheel?

Thanks for the help.

Do you have a wagon or sedan??? The front doors will enterchange from roadie wagon to caprice sedan, but the rear doors from a sedan and wagon are different. Basicly there is no difference from the roadmaster to caprice, but there is a differentce between sedan and wagon rear doors.

I'm not 100% positive but I do believe the rear doors are not interchangeable from roadmaster to caprice sedans.

Thanks guys yeah I have a Roadmaster Wagon. I can still get a door skins for the rear but GM stopped making them for the front.