I was wondering,is it possible to swap door panels with the cup-holders from a 91-92 bird into an 88-90 Trans Am/GTA with little or no modification??? It looks like you can,just want to make sure

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"A musclecar, by definition, is a powerful and sporty vehicle that must be able to spin its tires at will. The Firebird Trans Am is capable of laying down twin black streaks of rubber several hundred feet long. We wanted to be sure it could, so we did it a half dozen times in the name of automotive science."-MotorTrend

 

Sure it shouldn't be a problem. In my Bird I had the regular panels too, I switched to the GTa panels--the ones w/the built in armrests-I had to drill new holes in the rear plates for the handles-so if you're going from those you'll have to drill new holes-if it isn't those a direct bolt in.
Hope I didn't confuse you.

 

So,just some minor drilling and it'll just pop right in?

 

Sure, depending which panels you were putting in. Not hard either way.