The coupler/isolator connects the snout drive to the rotors inside and is usually of a sprung type. On the TVS series superchargers we are seeing alot of failures mainly caused by wear to the snout shaft as seen in our images. When these fail in most cases a rattle from the supercharger is heard, in total failure you will lose power and drive to the supercharger. If you try to replace the coupler with a factory sprung type you may find you also need to purchase a new shaft and drive hub due to the wear. With our solid coupler shaft wear is of no concern anymore so won't need replacing. If you are experiencing these symptoms it could be your coupler but in some cases you may find it is wear in the supercharger bearings. We always advise inspecting the isolator thoroughly, common failures ar.
