Ford F150 Pickup. Instruction - part 546

9. Remove the differential pinion gears and differential pinion thrust washers. 

Fig. 164: Removing Differential Pinion Gears 
Courtesy of FORD MOTOR CO. 

10. Remove the differential side gears and differential clutch packs, and tag them RIGHT and LEFT with the 

shim. 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup

  

Fig. 165: Removing Differential Side Gears 
Courtesy of FORD MOTOR CO. 

CAUTION: When separating the clutch plates and clutch discs, note the 

sequence in which they are disassembled. They must be 
reassembled in the same sequence.

CAUTION: Do not use acids or solvents when cleaning the differential clutch 

pack. Wipe components with a clean, lint-free cloth only.

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup

  

Fig. 166: Separating Differential Clutch Discs & Clutch Plates 
Courtesy of FORD MOTOR CO. 

11. Separate the differential clutch discs and clutch plates for cleaning and inspection. For additional 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup

  

information, refer to the disassembled view of the limited slip differential case in DESCRIPTION AND 
OPERATION .  

Assembly 

1. Prelubricate each steel clutch plate and soak all friction plates with additive friction modifier for at least 

15 minutes. 

Fig. 167: Identifying Belleville Spring 
Courtesy of FORD MOTOR CO. 

NOTE:

Do not mix the differential clutch packs or shims from one side with the 
other.

NOTE:

The Belleville spring is a dished plate.

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup