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Which shocks dd you buy?
Monroe 66903
I adjust my bearings so there is a very slight amount of play or they get really hot. I'm not sure about the shocks either but other people have reported it fixed their cupping and it fixed mine too.OK Blue, silly question: Have you checked your front bearing pre-load? If you've got any play in the front hubs, that could cause it. I don't understand how old dead shocks can cause off-center tread cupping like that. I'm stumped on this one!
It makes sense to me. "The link from the pitman arm to the axle knuckle" do you mean the drag link? And no I haven't checked my shocks or my Front bearing preload. I would have no Idea how to check that. Is there a TM that covers it.OK Guys, I think I figured it out. Think this one over and see if it makes sense to you too. Bad shocks will cause excessive outer tire wear because when the suspension compresses at higher speeds (don't laugh) because as the axle comes up, the angle of the link from the pittman arm changes forcing the left wheel to momentarily crank to the right, thus grinding on the outer surface of the left tire. As the suspension rebounds back up, the angle of the steering link pulls the steering left grinding on outside of the right front wheel.
Walk out to your deuces and stick your head between the left front fender and the wheel and look at the link from the pittman arm to the arm on the axle knuckle. Compression of the suspension will push the wheel right, rebound will drag the wheels left. Sound about right?
Yes, I meant the drag link. And bearing pre-load is a fancy term for how hard the axle nut squeezes in on the bearings. Too much bearing pre-load equals hot hubs after a long drive. I'm pretty sure there's something in the TM about how tight the axle nuts should be.
Blueduce, If I may ask, what did the repairs run you?
I put a brand new set of shocks on my Deuce a few weeks ago, with the little bit I've driven it since then, it seems not to wander so bad on the interstate where most of my driving is done. The old shocks were not leaking, and even had some dampening left in them, but the replacement seemed to cure my wandering problem. Next step is to check toe-in/out and then go from there. I really hope I don't need as much work as you had done, finding a 'Nam Vet that knows truck suspensions, loves my truck, and is willing to give a me a break, might be difficult to find around these parts. 
All of the NOS shocks I've seen for my A2 have been upwards of $80 to $90 a piece. Not to mention most of the NOS shocks have been sitting around for what? 10, 15 maybe even 20 years depending. They may look good when you get them but think of it this way If you went to your local parts house and he sold you a pair of shocks that had been sitting on his shelf for that long would you buy them. Gasses leak, seals dry rot and fail. No thanks. Secondly, the Monroe shocks work just as well if not better than the old stock shocks. Plus the Monroe shocks can be had for under $40 a piece.
