I just never seem to learn. Needed some 1/4 to 1/2" spacers for the last couple of sets of front wheels I've had on my 510 to get them to clear the coil overs and fit the car right. Everybody does this to trim-out-the-fitment thing. Well I went to the speed shop and bought some that are 3/8". How hard is it to get a flat piece of metal with some holes in it? Well I learned the hard way, again. Very hard apparently. The only ones they had were, shall we say, not very expensive. Th