Bushman5 wrote:
The whirring noise is the front propeller shaft spinning. That sound is normal . It's due to the gear reduction. In 4wd part time it's amplified because the shafts are spinning very very fast.
The slippage you experienced in FULL TIME mode , is most likely the tires slipping . FULL TIME is basically AWD (all wheel drive).
Part time is where the front and rear prop shafts lock and the front and rear wheels turn at the same time. ie power is equally split between the front and rear.
When you shift your transfer case are you slowing down and putting it into Neutral before shifting? On the fly doesn't mean shift when in Drive and at high speeds ...you can be rolling but you still need to be in neutral to shift.
That's the best way I can explain it....I don't think your t case is broken at all .maybe the linkage needs fine tuning adjustment. A good 4x4 shop can quickly assess it for you.
Maybe I didn't explain completely. This is not what happened. It was not tire spinning, and the sound is not the sound that it has ever made before in part time. It completely lost power. Not tires slipping. Like I threw it in neutral. Then if I clunked into 2WD I had power again. I have put it in 4WD low to try to get the tow rig up my driveway, and I cannot get 4WD. I get 2WDlow. Does 4WDlow work just like the 231, where your do not have to be moving to engage? It could be a linkage slightly out of wack and maybe it's popping into neutral. I'll check that out, but that doesn't explain the lack of 4WDlow and the noise in part time 4WD.