Whats' the difference between the the years that the PBR calipers were used on the camaros and firebirds from the late 80's to the late 90's? Are some made of cast iron as well as the aluminum? Just wondering since I don't really know what year the calipers are that I have that I want to put on my 82 camaro. I installed the C-5 about 3-4 years ago and have gathering all the parts for the rears and I know they are PBR and are aluminum but was missing e-brake hardware which I now have but now I find I am missing one of the little springs that hold the piston, the clip is there but the spring is gone and now I have to find one. Thanks for any help.

 

From 89-97 the calipers are nearly identical. An image search on Google will show you the cosmetic differences, which are minimal.

All rear discs in the above years are PBR alum.

JamesC