Hey Jim...it has been a long time since the days of the thirdgen.org
I make my own brackets a lot of times for the accessories, but this particular one is a truck alternator bracket with the idler and power steering areas cut off of it, leaving just the alternator mount. If you are using f-body balancer and water pump you could probably get away with this bracket if you had some machined off of the back of it to tuck it in tighter to line up with the fbody stuff....I have done that before on some of them.
Juced, this harness is from Techrods, I make my own lots of times but was on a tight timeframe with this one.