I see now, I hadnt considered the geometric changes when the suspension flexes. My trunion bearings are all good, I've opened the caps and checked and then proceeded to pump them full of grease. Didn't have to drill the caps either, found that mine has grease fittings on the bottom of each trunion housing. About 1 1/2 maybe 2 inches is the most difference I've seen between the two axles, and they do straighten back out while driving. As I said, most of my large truck knowledge is of OTR trucks, still figuring out all the nuances of the deuce as I play with it.