Ford F150 Pickup. Instruction - part 491

Fig. 141: Removing Differential Case & Special Tools 
Courtesy of FORD MOTOR CO. 

NOTE:

Measure both of the differential bearing stand heights prior to installing 
them on the differential case.

NOTE:

Mark the left and right differential bearings before measuring them.

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Front Drive Axle/Differential - Ford 8.8-Inch - F150 Pickup

  

Fig. 142: Clamping Special Tool Base In A Soft Jawed Vise 
Courtesy of FORD MOTOR CO. 

36. Clamp the special tool base in a soft jawed vise with the bearing mounting surface above the surface of 

the vise.  

37. Position the differential bearing assembly in the special tool, and tighten the tool. 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Front Drive Axle/Differential - Ford 8.8-Inch - F150 Pickup

  

Fig. 143: Positioning Differential Bearing Assembly In Special Tool 
Courtesy of FORD MOTOR CO. 

38. Measure the differential bearing stand height. 

1. Invert the special tool and bearing assembly in the vise.  

2. Use a depth micrometer to measure and record the differential bearing stand height. 

z

Repeat the procedure for the other bearing. 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Front Drive Axle/Differential - Ford 8.8-Inch - F150 Pickup

  

Fig. 144: Measuring Differential Bearing Stand Height 
Courtesy of FORD MOTOR CO. 

39. Select appropriate differential bearing shims. 

Differential Bearing Shim Selection Chart 

Fig. 145: Differential Bearing Shim Selection Chart (1 Of 3) 
Courtesy of FORD MOTOR CO. 

 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Front Drive Axle/Differential - Ford 8.8-Inch - F150 Pickup