I still spend a lot of time on the ImpalaSSForum. I've had my '96 SS since new and won't give it up. I'm just putting on a set of Dan's Tubulars and have to wait for my new MIG welder to deal with a broken bolt in the head.
The Nitro rear axle is a corporate 8.25". What's the Liberty got?
Mine will do nothing more off-road than a lake road or possibly a back wood detour road so I'm not really concerned about the stump pulling power. Can do that with my little Fordson Super Dexta tractor.

But I would like a little more immediate dig. Having a 9C1 you will appreciate that.
I was just on the Dodge Canada site (
http://www.dodge.ca/en/nitro/index.html ) and was able to build and price an SXT, 6-spd, with 17" wheels and 3.73's. I've got to talk to a dealer about this. Only in Canada, you say???!!
Stewart