Transfer Case issue at 80mph and after WOT
My front drivetrain shutters at 80mph on the freeway when you attempt to accelerate.
Under full throttle the issue goes away, but then returns promptly and more dramatic.
It also does it around town also, do a WOT pull its smooth and then it starts clunking and shuttering on decel and cruise then it goes away until you go WOT again.. it feels like your driving over bumps in the road, but there aren't any.
Removing the actuator completely, makes all issues go away.
Its peculiar because going WOT is good, and no issues. No problems with turning. It's odd when it starts doing it at 80+mph at cruise, but smooth otherwise. It "works itself out" until you go WOT, and then theirs a problem but then it "works it self out" again.
Clutches, actuator, chain?
Anybody have experience with this? I drained some fluid to inspect, and could be some copper in it but no a lot and in addition, it doesn't smell burnt or abnormal.