Portal braking system

A method of servicing a braking system of a vehicle having a stock axle, the method comprising:

• removing a wheel hub from an output shaft;
• removing a face plate from a housing of the braking system, wherein the housing defines a first opening and wherein the braking system comprises:
• a linking mechanism housed in the portal box effective for linking and connecting the stock axle to the output shaft, wherein the output shaft extends through the first opening of the housing;
• a piston positioned in a first position in the portal box housing along or around the output shaft and effective for applying an axial force in a first direction along the axis of the output shaft;
• a fluid channel fillable with a non-compressible fluid and effective to apply a hydraulic force to the piston when pressure is applied in the fluid line, thereby moving the piston axially in the first direction along the axis of the output shaft;
• a pressure plate positioned at a second position in the portal box housing along or around the output shaft and effective for applying an axial force in a second direction opposite the first direction along the output shaft in response to the application of the axial force in the first direction by the piston;
• a clutch pack positioned in the portal box housing between the pressure plate and the piston, the clutch pack comprising a first set of clutch plates radially surrounding a portion of the output shaft and rotatable about the axis of the output shaft when the output shaft rotates, and a second set of clutch plates radially surrounding a portion of the output shaft and not rotatable about the axis of the output shaft, and wherein members of the first set of clutch plates are interspersed between members of the second set of clutch plates;
• wherein the wheel hub receives a distal end portion of the output shaft and is adapted to turn a wheel mounted to the wheel hub upon rotation of the output shaft;
• and
• wherein the face plate defines a second opening, wherein the face plate covers the first opening and wherein the output shaft extends through the second opening;
• removing the clutch pack over the output shaft;
• installing the clutch pack over the output shaft through the first opening;
• installing the face plate;
• and
• installing the wheel hub onto the output shaft.