Well, my '83 full size has a noticeable pop on occasion when steering. Now, after I take a hard left or right turn(to the locks) and then come back on center, the truck tends to still bias whatever direction I just came out of. I had a garage take a look at front underbody, ball joints, etc... to see if anything stuck out. His suggestion was the front 4x4 axle u-joints were beginning to seize up, at least 1 if not both. I've heard this a pretty common failure on these trucks as well. Does anybody know if there is a good link to a "How to" article on replacing these, maybe somebody took some pics? The Chilton isn't very detailed and they never cover all the tricks...thanks for help!