Tie rod? Alignment?
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with the truck off the jacks and on the ground pick a tread in the tire close to center, front side of left and right tire. use a tape measure and measure the distance across from tread to tread then useing the same tread ( follow it around ) on the rear side of each tire measure across again. you want the front side to be between 1/16 & 1/8 inch less then the rear side when measureing across. you need a small amount of toe in. make adjustments on the tie rod to get the above results. i have done this many times and for toe adjustments you can get it 95%.