Off a chevy nova/spectrum thing (Geo? rebadge). Remember those? I got it years ago out of the junkyard. Cool I used stock brackets I had laying around. But I did shorten the lower bracket and ground a slight bit of clearance on the altnator near the adjustment screw. I also drill the two lug holes for std size bolts. Then I tapped the lower adjustment bolt for a standard bolt so I don't have to one metric wench with me.
