There are multiple bushings and washers in the shifter. And Megan, the cheapest and probably most popular short shifter for the 300zx, doesnt come with a few washers that are required and sometimes the bushings it comes with doesnt fit. As with mine, I had to install it minus these and it is thee loosest POS ever right now. Im gunna bet whoever put that shorty on didnt wanna go back and fix the washers and bushings. Not having the bushing is gunna suck, although if you have time, take apart that shorty go to a hardware store, slip the little shifter rod into some plastic tubing see what fits, get some washers, and reinstall that bad boy. The shifter is crazy hard and annoying to take apart at first but once you understand how it goes together its pretty easy if youre ok with breaking some of your fingers

. Let me know if you need info/help with that.