Sorry was google'n around and came across these guys as well

Quality Power Auto
.... they list a 6v alternator as well as a Bracket to mount it
.... also list a powerGEN

Powermaster Homepage
....more detailed info on PowerGEN Alternators

1929 Chevrolet AC International - 4 Door
1930 Chevrolet AD Universal - Canopy Express Truck
Love the Antique Chevrolet's from 1928-1932
The Beauty, Simplicity, History, and the Stories they Tell[/font]
- - In the Stovebolt Gallery
-- In the Gallery Forum