I have a nice 14 bolt 9.5" 5 lug rear from a 1990 454SS rear.  I had to travel 800 miles round trip to pickup it up when I bought it.  I am still running 3.73 gears in it.  gov lock was crap so I put in a detroit true trac which I love and I have that big thick aluminum cover that puts pressure on the main bearing caps.  Only reason I am selling is I am putting a lot of stock stuff back on my truck for resale and I dont want to give away a sweet very hard to find 14 bolt 5 lug rear.  I am looking to get $1600 for it and you pick it up just like I did.  Its been wire brushed and painted and looks good under a very good looking truck.   currently its still under the truck as I have to put some gears into the old 10 bolt before I slide it back under that truck.