Well, before I put the axle in it was regeared and most everything replaced at that time with the exception of the king pins themselves- Couldn't get them dern things off and one side lower bearing was not replaced. The axle only had 3 rides on it before I put crossover on it. I do know that the white bushing is cracked (at least on the driversside) as I have had it apart since then. Seems if you wheel at all that the freakin bushing is gonna crack.
"Could it be when you remove the stress of the weight of the truck on them, they are then able to turn fully?"
Doubtfull BUT-
This makes me wonder if I remove, or reduce, the degree shims under the leaf packs the castor-? would allow the pump and steering to work more easily. It would more easily allow the weight of the vehicle to be raised as the turn gets sharper. Ya know how the weight of the truck helps bring it back to center? If the castor is cocked up too much the pump can't force enough fluid to make the turn cuz more vehicle weight is applied to the steering system the sharper the turn.
Make sense? Might be on to something there! Does that answer all my questions? Hmm, I'll have to ponder that more.
In any case I think the next move is removing the degree shims and replacing the kingpin bushings. Be curious to see if one or both center pins are broken.
Thanks for the reply.