What rear end do these gears go to.

[Mr Handy]

I did a little horse trading a couple weekends ago for a SM465 For my truck. the guy I got the trans from had some other odds and ends he threw in with the trans. A set of heads, clutch, couple fly wheels, and this rear gear set. the gears are beautiful 41/11 (3.73 gears) but I have no idea what rear end they came out of, or what they will work in. If anyone knows what they go to and what they work in I would really appreciate the help. I am trying to figure out if they are worth keeping/selling/scraping/what they are worth?
here are some pics of the trans now that it has new seals and a fresh coat of paint (trans is beautiful inside... almost no miles)