I was thinking maybe the switch clamped into the bracket and you were suppose drill 2 holes in your shifter to mount it. Also , I have never seen a switch that looked like that, but if it works , OK. , I've got a Hurst thats over 40 years old and never had a problem, just taped it on the shifter with electrical tape, things were more simple back then. I have replaced the tape a few times though.