We have a 1971 Buick in the shop that needs an Alternator Pulley - Double Groove - GM Number 1964758 Thanks guys . . . . . Also, if anyone does have one of these can you please post the overall diameter ?? .
2 5/8 dia. This pulley has been replated. Be careful. There are other pulleys with the same dia. but they may have a different spacing between the centers of the grooves. It's for sale if you want it.