[undy]

Fred,

I did take measurements, 5.5" OD on my existing March lower pulley and the guy I'm buying it from measured his, 6.75" OD. From what I've read the offsets match up and both are designed for a 7/16" belt. George at Guessford recommended a "pulley" shop in CA to me. The guy had a pristine 6 3/4" dia single groove pulley that's being shipped.... $25 plus shipping... cheap enough. I've his phone number at home if anyone's interested. The "new' pulley combination will net me a 12.5% over driven water pump. cool... literally.

Dave