I am selling a package deal for 8.8 parts.
This took a lot of time to track down all the parts and I know it is a popular option for many now, people have gotten it into the 9s on an fbody!

Kit includes
-8.8 center housing (crown vic i believe).
-10 bolt axle tubes.
-4.10 gears, look to be in great condition.
-Posi (Trak Lok)
-Rebuild kit for Posi (I believe it brings it to cobra specs, very easy to do)
-Gear install kit (new)
-T/A rearend cover (new)
-T/A bearing cap stud kit (new)

$350 local pickup.(SE Mich)
I believe all you have to do is weld on the axle tubes, weld on a torque arm mount, order axles (moser has them for 295/pair), and install the gears.

Price is firm (Just lowered), I wont split it apart, and I am only willing to do local pickup at the moment.
You should be able to build a rearend than can handle a lot of power 600-700bucks total!

Here are the 10 bolt axle tubes fitted into the 8.8 housing.