z71

Have a '98 K1500 Z71 off road, driving down the road it's usually fine sometimes has a hard spot. At idle sitting still it has very hard steering. Not sure if it's the pump, or a pressure relief, or my steering box. What should I check first for diagnosis?

I really want to lift my 2002 sierra Z71 more. Currently i have a 3 inch body lift and 33 inch tires, i really want to go bigger :D I think i have decided on the rough country 6 inch suspension lift kit ($1000.00) If i leave the 3 inch body lift what size tires will i be able to fit? I know it...