One more thing you can try, loosen the u-bolts holding the front axle just enough to move axle. Take a couple heavy duty ratchet straps and pull axle forward on both sides, or pull it backwards on both sides. This will insure the alignment pins are seated against the alignment holes. There is some slop in the holes, so by pulling the axle the same way, you eliminate any variances side to side. Or pull one side and teat drive it, you maybe able to center steering with some trial and error.
Joe
