I got my 75 cutlass supreme with 22" rims, which i will be taking off this weekend and replacing with stock 15" ralleys. I was looking around under my car and noticed that the owner put in coil spacers to fit the huge wheels, the springs in the rear look like the're stretched pretty far. Im wondering the spacers can do damage to the coils, Im going to be taking her into a shop at the end of the month for a tune up and would like to know if it would be worthwhile to replace the springs. Also noticed there are newer looking KYB GR2 shocks all around, any input on these?

 

It really depends on how long they were installed for. They will be placing stress on those points of the spring.

Personally I would just take them out and drive it for a while to see what it looks and feels like. Maybe thats just me cause I'm cheap.

 

Springs cost about 70 bucks a pair, and 5 for the insulators. They are also fairly easy to change.
Like Craig said - drive it afterwards and see how the car sits. If it lists to one side or the ride is too soft, replace the coils later if you want, perhaps with HD Moogs.