I have stock springs on my 87 firebird and i'm getting new exhaust so I need more ground clearance. Do you know the length of my rear springs so I can buy new springs that are about 2" taller. If I do this will it hurt my handling or traction? thanks

 

Yes this will hurt your handling and may hurt traction as well. Why do you need to raise the rear for your new exhaust, are you going to put true duals on it? If you have to raise it up you might consider air shocks. I thing I would reconsider lifting the rear if you don't have to.

 

I have heard that Moog cargo coils (I think dats da name...) raise the rear like 1.5" to 2" dunno though.