Mike,
Here is what I got.
Bolt-in, E-body spec 5-60 assy 4.10 track lock, 1350 yoke and std cover $1875
Upgrade to True-Trac differential $300
Repro pinion snubber plate $75
Cordoba 10 inch rear disc brake kit $275
Shipping $245
You may also need, brake lines, new u joints, U bolt yoke