B7500 Gear whine worse in 4wd

[ACE17]

I have noticed this since tractor was a year old. A gear whine from front axle & this seems worse when in 4wd.
I am just new to this forum as of yesterday & you folks seem very knowleable about all Kubota. Has any one else with a 2003 B7500, manual trans, 200 hrs. had the same or similar noise?

 

[KeithInSpace]

Might not have anything to do with you, but my BX with HST makes quite a bit more driveline noise in 4WD than 2WD. Makes sense considering all the extra things that are spinning around to make the front wheels turn.

 

[don716]

I have a 03 B7500HST but without the winning.You might trying checking the front axle fluid.Hope this helps.
Donny