I am having trouble on my 03 dodge 2500 diesel. The steering was getting really stiff. I had the ball joints replaced, the U joints and a front end alignment. The steering was corrected somewhat, however it still sticks a little. When I turn the wheel sharply to turn out of anywhere the sterring will only come back so fart then I have to manually tug on it. This just started a short time ago. If anyone has an idea what to check that would be great. When I first bought this truck it had 26,xxx miles on it and there was an issue with the steering then , but the delaership corrected the problem.

Any help is greatly appreciated!!