The drive shafts connect the transfer case and differentials.
The transfer case,transfers power from the transmission to the front and rear differentials.
You'd be talking about the driveshafts...
transmission
The angle between the front and rear differentials is critical because it affects the alignment and performance of the vehicle's driveline. A misaligned angle can lead to increased wear on components, reduced efficiency, and potential binding or vibration during operation. Proper alignment ensures smooth power transfer and helps maintain optimal handling and stability, especially during turns or off-road conditions. Maintaining the correct angle also helps prevent premature failure of the drivetrain components.
The front and rear axles are differentials.
if 4x2 only 1 differential which is the pumpkin between your rear axle, if 4x4, there will be a transfer case at the front of the vehicle coming off of the transmission going to front drive shaft and front differential.
The driveshaft
Power goes from the engine through the transmission to the differential to the front or rear axles. If it is all wheel drive it has a transfer case or center diff. between the transmission and the differentials.
The service manual says.... The transfer case near left foot uses engine oil - GN4 4-Stroke Motor Oil. 10w40 or 10w30 The differential's uses Hypoid SAE #80
The Shimano Tiagra front derailleur is compatible with a 9-speed drivetrain.
It could either be a problem with your 4x4 switch in the cab, the actuator that connects the front right axle shaft to the drivetrain, or the transfer case itself not sending power to the front driveshaft.
front and rear differentials that is if it is a 4x4