This vintage auto garage alternator bracket, model BKT4953, will allow you to run a gm 10si or cs130 style alternator in the same position as the original generator on your 8ba flathead. It is for 8ba flatheads in a 1949 ford or mercury car and 1949-1953 ford truck 8ba flatheads with a 5/8" wide pulley. This bracket will fit a gm 10si or cs130 alternator in a ford flathead with 5/8" wide belts. Used in a 49 ford or mercury car or 49-53 ford truck with a 5/8" wide pulley It's been powder coated black. They go for 90 new, I didn't end up needing it so I'm asking 50obo.