The small diameter pulley is going to be needed to make the alternator start charging on startup. It spins the rotor faster and gets the charging started sooner. With the bigger pulley you will need to goose the throttle after starting to get the amps flowing. Search "2-groove alternator pulley" on Ebay. There are at least 20 of them listed today. Install the 2 groove small diameter pulley and use the front groove, and things will line up right.
Thanks for the tip. Will I need to change V-belts?
I use an impact wrench and a 15/16" socket to install/remove those pulleys.
Jerry
My son suggested doing that but the shaft will spin with the nut, won't it? That seems like it wouldn't work. I spent 2 hours today searching local hardware stores for a 15/16" offset box wrench. Couldn't find one.