I hadnt seen anyone with this shifter yet. I cant find the post, but someone put a stock shifter from an 05+ Mustang on theirs. So, obviously they used the same thread pitch. I found this shifter from UPR. It feels 100% better than the stock one for some reason. Not sure why, but it feels more fun to drive, seems to compliment the short throw. Anyways, I ended up using one of the reverse lockout rings from CFM so I could screw the new knob all the way down onto the shaft. Had some goof ups installing it (a shift knob I know), Id just reccomend some lock-tite if anyone else gets one.