Alternator bracket

Has anyone used the chrome bracket on a 273 (see link)? My engine is a 65 and I'm trying to figure out how to use them. Pic's if you have would be great.

http://cgi.ebay.com/ebaymotors/SB-C...r_Truck_Parts_Accessories?hash=item4833a6aa78

aren't these the style bracets you can use the new higher output denso altenator with? I seen someone on here using the same ones with there denso alt., the denso is almost a bolt in altenator and you can use an external voltage regulator