I have a 98 Chevrolet silverado recently the truck has been very hard to turn especially to the right, already replaced 2 power steering pumps. Something is making them go out. I have a lift/leveling kit on the truck, on 35s. I can hardly turn the wheels at all unless I give it a lot of gas. Something is causing it to do this but we are baffled at what it is. A couple of months ago one of the upper a-arms did snap, on the right side. And we replaced it but the arm is a stock arm and the other is an aftermarket that came with the lift. But we don't want to spend all that money for another lift just to get those aftermarket a arms, were not even sure if it is the a-arm that is the problem. Please help

Could be your lift kit and the 35 s. Lots of extra torque needed. Ackerman angle too far off, scrub radius etc. The fact that you already broke an A arm is indicative of a high sprung weight from the tires.