[SOLVED] D-Series 4WD-transfer case sometimes sends no power to front wheels

On my D-Series Truck with several engine and axle combinations sometimes the 4WD-transfer case sends no power to the front wheels. When i switch something on the powertrain and reswich it again, the error is gone for a while, but reoccures after a while or after a reload. You can see this effect ingame (burnout, offroad driving, tire spinning) and on the power flow widget (Images below).
The truck is specced with a locking front and rear diff, heavy duty frame and drive shafts,10 lockable front lug hubs and dually rear wheels, Front and rear 3 link live axle, but the error occures with indipendent suspension and all other axles too.
Cache cleared several times, many possible related mods deactiveted, but i cant figure out the error.

Standard configs and therefore the safe-mode are not affected by this error, but my custom config uses only standard parts, no mods apart from wheels and tires.

Spoiler: Pictures

4WD-transfer case not working:


Same truck, no changes, just a reload, with working 4WD:


Vanilla Truck "D35 Beast":

 

First, try changing the wheels and tires to vanilla, and only use vanilla parts. Then also make sure your diff ratios are the same. Also, make sure youre not using the awd transfercase, and remove traction control.
--- Post updated ---
ok, did some research, your truck doesn't have front halfshafts installed. Go to front suspension<differential, and equip halfshafts.

 

Thanks! I never expected it to come from the tires.
But while verifying that clue I discovered that the 10-lug-hubs are not in the vanilla game, instead they come with the Heavy Duty Off-Road Mod, which also contains the weehls and tires that i used. After removing them and quite a few tests i can say that this is the problem, i will contact the mod developer that its mod is sadly outdated.

Since the truck has a front live axle, which usually has intigrated sort-of halfshafts, they come "standard" in BeamNG.

You helped me alot, thanks!

 

Youre welcome