Will my clutch and clutchbell fit on OK I'm not sure how wide the original one is hard to measure as it is in the car but it is around 35mm. The mount for the sensor goes onto the top of the engine mounting lug and uses the existing engine mount bolts. And is suppossed to fit behind the flywheel where you put your sticker for the sensor to read but it is too small. Not sure if 38mm will do it but I'll try it is the hong nor one. you mentioned from any 1/8 scale or is it from the ST.