Ford F150 Pickup. Instruction - part 614

Fig. 74: Driveshaft Flange Bolt Tightening Sequence 
Courtesy of FORD MOTOR CO. 

23. Install the driveshaft.  

DIFFERENTIAL CASE 

Special Tool(s) 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup

  

Fig. 75: Identifying Special Tool(s) 
Courtesy of FORD MOTOR CO. 

Removal 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup

  

1. Remove the axle shafts (4234). For additional information, refer to AXLE SHAFT .  

2. Wipe the lubricant from the internal working parts, and visually inspect the parts for wear or damage.  

3. Rotate the differential case (4204) to see if there is any roughness which would indicate damaged 

bearings or gears. 

Fig. 76: Rotating Differential Case 
Courtesy of FORD MOTOR CO. 

NOTE:

There is a space between the anti-lock speed sensor ring and the ring gear 
for measuring ring gear backface runout.

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup

  

Fig. 77: Inspecting Ring Gear Backface Runout 
Courtesy of FORD MOTOR CO. 

4. Position the special tool and inspect the ring gear backface runout. 

CAUTION: Mark the position of the bearing caps as arrows may not be visible. 

The bearing caps must be installed in their identical locations and 
positions.

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup