MariusNO

I have checked my differentials, all three of them (one for each axle) and they are according to the instructions. See attached picture Underside And attached video Video

Did you ever find the problem here sher? I have the exact same issue, everything works except for the moving forward/backward part. If i lift the truck so that the wheels are in the air, the engine moves them but at diffrent speed. If i put it in neutral it all works fine when moving the gears manualy.