The alignment shop says my van cannot be aligned.
Quadravan’s have had some odd steering designs. Drag links and tie rods that had right hand thread ends on both ends, making it difficult to center the steering wheel. But, caster and camber settings are built into the axle housing. The alignment specs are the same as a p/u with mono beam axle. An axle which needs caster or camber adjustments for reasons other than lift may have other problems. Such as a bent axle housing, spindle or knuckle.
How can I center my steering wheel?
Most Pathfinder drag links consist of two right hand threaded ends. One of these ends is welded to the adjusting sleeve, leaving one end adjustable. In order to make adjustments, one must remove the adjustable end from its taper and screw the end in or out one full revolution. Of coarse, if you need something in between, you can't have it. The new replacement drag links are fully adjustable with the drag link ends being left and right hand thread.