I just bought some roller rivets from LMC for my rear power window on my 86K5. I grinded off the old ones and when I went to insert the new LMC ones they are quite a bit smaller in diameter. Anybody else had that problem? Should I heat the rivets up and smash them flat with a hammer or is ther another process? Maybe I should just order them through the dealer I don't know, but that rear window is a pain in the rear.