Anyone replace the 87-89 climate controls with one from a 90-93?

[RacEoHolic330]

I busted up my climate control the other day when I was gutting my interior. I though instead of getting another one, maybe I could put one in from a 90-93 car. How much work does this involve? Are the mounting points and electrical/vacuum connections the same? Pics would be sweet

 

[ss93cobra]

I've done it. All you need to do is make sure that the climite controls you get have the switches and knobs and trim piece with it. The switches from 87-89 vs. the 90-93 are in different locations, but all the vac. and electrical connections will reach the new positions and hook up correctly. -don't forget the console trim piece as the new control unit is "smaller" looking and your old trim piece will look like crapola -

 

[Kumm3]

Ive done it as well, everything hooks up with no issues.

The only problem i found was the 87-89 mounting points are different than the 90-93 ones, so i had to make a little bit of a plastic backing plate to screw it to. Its not a big deal though, i actually used part of the old trim peice to make it.