Hey gang, before I take everything apart I did last summer, figured I'd ask. got the 94 tracker 2dr 4x4 for super cheap, pretty much everything worn out but it did all work (4x4) Installed new wheel bearings (National from Napa) and some new Rock Auto half shafts....new rotors, pads ect while it was all aprt. Manuel Hubs, cleaned and re greased. Seemed to all go well til winter when I needed 4x4 to get out of the hood.... while in 4x4 no noise. When hubs are locked and in 2wd it sounds like 2 owls trying to escape... hit a little bump it goes away, hit the next bump and its back. I did notice a plastic spacer on one side that the other didn't have. Would take up CV slack I guess. I did a recheck to make sure the Front diff had oil, and is full. Kinda sounds like the input sleve into the diff was dry? its why I checked. we have a small fleet and finding out Rock Auto isn't for everything... maybe bad length on the half shafts? any clues before the tare down here soon to get ready for the Rocky Mtn Rambler 500 here in Colorado...