remove bolts around the output shaft holding the bearing: Attach a pto shaft, and use the pipe as a crowbar against the drawbar to pull the bearing out.
ATTENTION the slide tube of PTO will drop down into the rear end: you'll need to undo the lower gearbox cover under the axle housing to push it up when putting the shaft back.
Not sure though if the Proxima still has this hatch under the axle. The oil pump isnt there anymore so i really dont know.