I actually went looking for a set not too long ago. I did notice that most part manufactures did have a listing but their not the right size. If I remember correctly the 69 has a spring diameter of 5" across. All the spring isolators that were listed for the firebird were 5.5" or greater rendering them useless. I was however able to find a set for my needs at global west as I was trying to increase ride height. Moog also makes a flat pancake universal style isolator. you will have to get fancy with a razor blade to get it to seat properly.