and I have to say I'm not at all impressed. When I first checked out the unit, I did notice there was some play where the rivets attached to the back plate but I didn't really pay that much attention to it. It took me about 20 minutes to install and once I started the engine, the pulley was rattling quite loud at idle. I then removed the pulley and figured it must be the play so I decided to squeeze the rivets further to eliminate the play. Once complete, I re-installed and everything was fine.
What chaps my hide is the seller obviously knew there was a problem which I'm sure is why he sold it. How could he not, it rattled like crazy. I'm certain the average person not knowing the issue would have been really pissed off. Forturnately I'm an aircraft mechanic so I was able to repair. The next time this occurs, I will replace the rivets with shear hi-loks. A much better option.
Anyhow, as they say buyer beware....