i had to make my brackets when i put a gmc top kick alt on my 292 it had the heavy duty bearing's and regulator .model 21si 100amp #1117886 i just used a good used one and changed the pully .here is a sample http://www.motorcityreman.com/deoe1111111113.html

Last edited by old dog; 06/16/2009 4:02 PM. Reason: more info