Hi All - First of probably many posts here. I recently purchased a K2500 Suburban with 95000 miles to use infrequently to pull my families travel trailer. The old burb is great except for one problem which in search the internet for answer is how I found this awesome forum. The problem is the Burb will not run in a straight line no matter the speed. It will either wander left or right and requires alot of effort (steering seems stiff as heck at center) to correct it in the opposite direction causing it to wander in the other direction. If I turn to the left it just keeps going left and the same thing happens going right. It just will not go back to center on its own. Before I throw more money at it I figured I would ask the experts around here as I have already read all the other threads that are similar to mine. Here is what I have done so far: - Checked Tire Pressure - Found Pitman and Idler arm shot so I replaced - Had truck aligned problem still there - Replaced Lower Ball Joint on Passenger side which had a tiny bit of play - Had truck aligned problem still there - Replaced EVO sensor on steering column problem still there Yesterday in frustration I took the truck into another place and had it aligned. Before the alignment the tech and I took it for a drive and he called it SCARY (and it is at times)to drive, like the steering box is too tight. He checked out the entire front end and could find nothing causing it and checked the alignment and it was dead on. He suggested adjusting the steering box but felt that it would require replacement. I've never personally seen a steering box shot at these miles but I would guess it happens! Opinions appreciated! Thanks in advance.