I have a friend who replaced them because the ones on his 92' K10 had only 60% of their original spring rate. So I don't see his fault. I changed mine too and I found the new ones way stiffer than the old springs.
I did not mean the shape of the dash... I mean the, I don't know if it is the right word, microstructure :D the little pits and bumps and so on... I was not sure if the glue on the stickers would work with this...