Piaggio Porter Rear Drive Shaft Disassembly
1 - Remove the brake shoes and the brake cylinder.
You can find the complete guides and videos here
PIAGGIO PORTER SHOE DISASSEMBLY GUIDE
PIAGGIO PORTER CYLINDER DISASSEMBLY GUIDE
2 - Undo the screw fixing the ABS sensor to the axle shaft.
3 - Unscrew the screws fixing the hub to the rear axle shaft
4 - Using the specific tool, remove the hub from the rear semi-axle.
5 - Remove the hub complete with bearing and phonic wheel from the semi-axle
6 - Make sure that the oil seal does not show signs of wear or irregularities along the sealing edge. Check the correct operation of the bearing on the rear hub.