I installed my own Rock Krawler 5.5 long arm lift. At the same time I installed new Dana 44's. I measured like a mad man on every little detail. When it was all done I had major DW, drove it 10mph over to the alighnment shop, besides the few mistakes I made the castor was way off. I drove out of there at 60mph, the only time i get any wobble now is when my tire pressure is too low for street driving(8-11psi) or the hardware on all the linkage gets loose, especially the upper track bar mount.
Probably didnt help you too much, just my 2 cents.