My 2002 FLHTC with 70,000 developed a vibraton and noise coming from the primary side. As for the vibration I did all the usual things, replaced the front engine mount with Velva Ride (I think that's what it's called), checked the stabilizer links, etc,etc. I had the primary cover off recently and took apart the compensator and it looked OK. Any chance it can look OK and still be bad? It costs $165 at the dealer and I hate to spend that kind of money only to find out that's not my problem. But the funny noise and vibration came on at the same time and a bad compensator would definitely cause both things. Can someone shed some light. And yes, the nut was very tight when I took it off and retorqued to 165 ft/lbs.