First off, welcome to the site. Theres more info here on chevys than you will possibly find anywhere else. If I were you, I would check the tie-rod ends, draglink, and steering stabilizer. This is a tough problem to fix. Im not exactly sure what YOU consider "sloppy steering." With a lift and bigger than stock tires, you will have bump steer (the truck wanting to wander when it hits bumps) and wandering. I have also never been in an older chevy truck that had responsive steering. I know on mine, I can pretty much turn the wheel 1/4 turn in either direction while driving and it not turn the truck. /forums/images/graemlins/eek.gif But, if I let go of the wheel while driving, my truck does a pretty darn goo job of staying straight. /forums/images/graemlins/thumb.gif
-Harrison