The serpentine belt tensioner pulley is going bad on my '88 260e (noisey bearing). Rather than replace the entire tensioner, could I just replace the tensioner pulley? I see that Fastlane sells the pulley separately and it seems that it would be easier and cheaper just to replace the part that's bad.

Anyone have an experience with this. I am familiar with getting the belt off but have never taken the tensioner off.

Thanks,
John