Im not exactly sure. Thats why i was hoping that someone on here had used the TCI clip so that coulc give me some advice. The shop that is working on my car called TCI and at first they said they didnt know at first but eventully got back to us and said 4 3/4 But i dont even know what that means. I beefed up the rear end so those are stock numbers for the rear 18's but in the front with the new clip is where I have my issues. The clip has drop spindles on it and can be adjusted down another 1/2 inch so I want it to sit low and be slightly tucked without hitting the fender when i turn. All i know is TCI said 4 3/4 can you make any sense of that? cause i sure cant