C5 Corvette Belt Install - No Idle(r) Matter Photo Gallery
The old tensioner is at the left and the new unit is on the right. There should be absolutely no side play in the pulley on the tensioner. Mine had about 1/64 of an inch side play which indicated the end wasn't far off. A slight tell-tale squeaking sound from the tensioner pulley is what alerted me to the problem in the first place.