I have TWO alternator/power steering pump brackets for a '93 Fleetwood.
They're a different bracket that allows the use of a CS144 style larger alternator. Bolts to SBC, will also fit a TBI Caprice, Roadmaster, wagon, truck, blahblahblah.
$50+ship for just the bracket
Here's a photo of one of them. Pretty straightforward.
A massive photo, mind you:
https://i.imgur.com/tMZ1fGa.jpgIf you want, I have one that is "loaded" with an alt and a PS pump too. I'll sell that for $100+ship. The PS pump is about 2 years old, and the alt came from the junkyard but powered my wagon w/2k watts of sound just fine. Worked when removed. :p
If you're putting it on a B-body, you WILL need the power steering pump from a Cadillac. I bought one for a 1993 Fleetwood. The lines fit just fine, but the pump is clocked at a different angle so your stock one won't bolt in.