hi.. this question is directed to anyone who can help. i had to lengthen my lugstuds to be able to use my original rim. i have a 63 deville and i am doing a disc brake conversion with 69 parts. so yes my lugstuds are too short. the ones i orderd are a hair larger than the original. the knurls are the important part from what i have learned so far. i did some grinding on the parts that were too thi