Thanks for the input, I'm going to have my Dad take a look at the rear-end as he works right across the street from the place that has it. If he says it's a complete unit, I think I'm going to fork over the cash for it. I think later on when I put the 351 in I'll be glad I did it. BTW it is a standard 9-inch with disk brakes. The track is about 3/4" wider than the standard Mustang rear, but the I understand the spring perches are in the same location. A posi third member with a nice set of gears will have to come later on when I do the rebuild before it's installed in the car. Man, those rear disks will look really cool poking out from behind my Vintage 45's!
http://216.71.48.244/archive/mikecar.jpg
65 Fastback 289 4spd in storage :-(
91 CRX Si... A.K.A. my go-kart with AC!