[dsraven]

my suggestion, without seeing any pics (hint hint), would be to do what any wheel alignment shop would do when they start an alignment. put the truck at ride height with the wheels and tires of choice on the vehicle. center the rack gear (count the turns from lock to lock and then put it in the center of it's travel) and lock the steering wheel in that position. then adjust the front end to be within spec. that would include adjusting caster, camber, the steering stops that stop the turning at the end of it's travel on both sides, as well as the tie rods at some point to get the wheels pointing in the correct direction with the toe in/out spec. then, if it still turns further on way than the other, it would be due to some other problem. since the crossmember should be installed centered, the steering rack should be installed and set up so the inner tie rod flexion point is inline with the upper and lower control arm pivot points and the control arms should be the same length on each side, one would assume that a problem with turning one way more than the other would have been an issue with an improperly centered (number of turns side to side) steering rack. is there another reason, possibly a tire hitting the frame or something bolted/welded to the frame, tie rod ends at the end of their adjustment so the rack cannot be centered properly?