okay heres what i have a 2004.5 cc d/a 4x4 put new tires on
at about 4000 miles to get rid of those mini spares.after about
2000miles i found the rear tires feathering fronts are fine well
took to dealer they told me evrything was fine.so i rotated the tires
at 4000miles noticed tires feathering again now i cked the alignment
front and rear well within specs.now have at my purchacing dealer
and they are telling me everything is good just rotate tires more
now i think they think the tires are feathering on the front and they
know specificly that its the rear they said the will look at again.only
thing i can think is the rear locker is staying engaged or bent axle
shaft but i dont feel a vibration any help please.tire pressures at stock
settings thanks

If your dealer doesn't have a four wheel alignment machine he can't even check the rear. You might want to ask him. It is very uncommon to have a toe in/out problem on the rear. The locker is a possibility but you should be able to hear and feel it. The differential could be installed crooked. Later! Frank