To make my quest alternator fit I had to drill the upper bolt holes, slot my bracket out a little further, and trim the alternator casing a little. My car has been running fine with a three rib belt for 9 months. (no slippage) The only thing that freaked me out a bit was how close the pulley is to the lower radiator hose, but that's nothing a giant zip tie didn't fix... What exactly isn't fitting on your sr?