Brant,
I have the XFD (Extra Heavy Duty) Leaf Springs in the rear, P4452984 right, and P4452985 left side.
Up front, torsion bars are .920 Diameter, P5249157. KYB Shocks all the way around. Polygraphite bushings everywhere. 1.125 diameter front anti sway bar, rear "stock" 5/8 diameter sway bar I believe.
Handles pretty sweet now. When I first drove it 5 years ago, it wallowed around corners like a drunk pig. Now it feels very tight.
The dash and center console squeeks though.
So there is always something to do.