GM Alternator for a Willys Flatfender Jeep

I've got a few Willys Jeeps around that don't have a charging system. In this video I install a Chevy alternator onto my CJ-2A. The most important part is getting the drive pulley right, otherwise the alternator may not charge at all when idling or at low speed. I made the brackets out of scrap parts I had lying around, and find some mud to "test" the charging system.