03 s175 is the transmission oil separate from the hydraulic oil ? Or do they share the same reservoir? Also wondering if you your required to drain the oil to change axle bearings? I would guess that you would want to put fresh oil in if the existing bearings were bad lastly to remove the oil from the gearbox do you pump it out? Thanks in advance I'm a bit new to bobcats in generals I'm trying to get a grasp on things.