G'day,
So after I got dragged out of bog hole backwards developed a whine and a leak from the transfer case.
The mechanic fixed the leak by tightening the bolts up on the back of TC however there is still a whine in the TC.
The whine is vehicle speed dependent and does not change on/off throttle.
I locked one hub on the front a drove around and there was no noise. Swapped hub and still the same. Its only when the TC is spinning. It starts to whine above 40kph and it doesn't matter if it is in hi/low 4WD or 2WD with hubs locked.
I leaning towards a bearing is stuffed in the transfer case. I have lubed all the CV joints with no effect.
01 hilux 1kzte manual sr (manual hubs)