tti header clearance problem

Check for loose steering box mount bolts, pitman arm nut torque also needs to be correct. Look over the welds on the steering box mount area for cracks. Shimming the top of the steering box mount surface will move the tie rod down and away from the header tube.
You can also cut the excess off the tie rod stud and install a shorter castle nut; secured with safety wire instead of cotter pin.