Transmission Mounted Parking Brake ("F" Series Super Duty): Disassembly

1. Remove parking brake assembly. See TRANSMISSION MOUNTED PARKING BRAKE  under REMOVAL & INSTALLATION. Mount parking brake assembly in vise using brass jaw protectors. Using Locknut Socket (T70T-4252-D), remove locknut from mainshaft. Using a 3-jaw puller or a press with Adapter (D880L-1013-A), remove mainshaft, brake drum and output flange. See Fig 1 .
   Fig 1: Removing Locknut, Mainshaft, Brake Drum & Output Flange ("F" Series Super Duty)

   Courtesy of FORD MOTOR CO.
2. Remove snap ring holding speedometer drive gear onto shaft, and then remove speedometer drive gear. Using Puller (D80L-1002-L) with Bearing Cone Remover (D79L-4621-A) and Step Plate (D80L-630-6), remove inner bearing cone from mainshaft.
3. Remove parking brake assembly from vise. Turn brake assembly over, and mount threaded end of mainshaft in vise using brass jaw protectors. Remove 4 nuts attaching output flange and brake drum to output shaft. Remove brake drum and flange from output shaft.
   NOTE: Drum, flange and mainshaft are balanced as a unit. They must be marked to ensure parts are assembled in same position.
4. Using Bearing Cup Puller (T77F-1102-A), remove output shaft oil seal, spacer, "O" ring, bearing and bearing cup from input shaft end of case. Remove splash shield and brake assembly from case. See Fig 2 . Remove brake actuating lever and lever spring from case.
5. Using Bearing Cup Puller (T77F-1102-A), remove outer bearing cup. Unscrew and remove vent from case.

Fig 2: Removing Splash Shield & Brake Assembly ("F" Series Super Duty)

Courtesy of FORD MOTOR CO.