Have a 02 gmc diesel with a 6 inch rcd lift. The front seems a little lower than rear. Was wondering if a 2 inch torsion bar key lift would be a good idea to level the truck? I took the torsion bar cranking method but driving in 4 wheel drive on ice and snow you can't control the truck on the road it pulls you damn near off the road. Was wondering what that lift does that is different from cranking torsion bars?