What's this 9-inch rear end worth?

It's from a '67 or later Ford, it fits 65-66 Mustangs, but is a little wide. Open differential, highway gears, 28-spline, small bearing, drum brakes, needs new center gasket and axle seals. A friend said it's only worth about 50-75 dollars. What do you think?
 
depends. if it was one from a 65/66 or late 50s that is the same size (57") ive seen them sell on ebay for 400-500 cause they are rairer. yeah that one fits but it will push each wheel out in 1". the senter section is worth what your fiend said, the rest depends on the buyer i guess. the only thing of value would be the housing unless it had a N case.
 
If it was a 67 to 70 9" it would still have some value. They're not too abundant either. I would guess at about $300.00. Just depends on who wants it and how bad. A lot of people still want 9" rears in those too. If it a 71 or up the value would be less.