What about the drive shaft- check u-joints and/or slip-yoke wear/lube, straightness, etc.
Also check that the nut holding the t-case flange on is tight. Sometimes they loosen up. Same goes for the pinion flange on the diff.


'97 4Runner, '06 F350, '86 4Runner, '05 WR450
http://home.4x4wire.com/erik