Rear was chartering when making tight turns though the Gov-Lock posi was going out so had a shop install a Eaton posi and check out the rest of rear for any problems well after getting truck back the problem still their. It has to be warm for this to happen also truck makes a winning nose but only while on the gas. I have been told it could be the transfer case and or the front diff causing this, anyone else have this problem and how ya fix it.