Where did you guys find your 8 3/4's?

After seeing this thread this morning,I punched in "Rear end" in my local C list just for ***** and giggles.
Found (what I believe) is a B-body 8 3/4 with a 489 case and a 3.55 tag.
Got it for $30.00....He was a Chevy guy who picked it up out of a field. Im not even in the market for a rear. This will show you what can done.

Next up....Open it up to find that sought after Sure-Grip !!!!!

PS: Who are all these Posi guys ?