I have my rear end out of the car and everyone had told me that these bars are well worth it. .8.2" 71 chevelle, UMI upper and lower control arms. . QA1 shocks . anyways, the right (passenger) side fits perfect, but the left side seems to be too short. also, the thin slit goes over the fin on the left side, yet the wide slit goes over the fin on the right. . .is this correct?? any suggestions on how to fix this?? I had though of grinding the left side down but I don't want to weaken my bars. Also, is there anything that bolts to the bottom of the bars, as the bottom hole is nearly 2" past the fin. any help would be much appreciated. . pics would be appreciated more. . thanx