Special Tool(s)

Fig 1: Identifying Special Tool(s)

Courtesy of FORD MOTOR CO.

Place the differential (4026) into the converter housing.

Fig 2: Placing Differential Into Converter Housing
Courtesy of FORD MOTOR CO.
Place Shim Selection Set, Shim Gauge Adapter Ring, and the rear bearing cup onto the differential.

Fig 3: Placing Shim Selection Set, Shim Gauge Adapter Ring, And Rear Bearing Cup Onto Differential
Courtesy of FORD MOTOR CO.
Place the six Collars on the converter housing at the positions shown (A).

Fig 4: Placing Collars On Converter Housing
Courtesy of FORD MOTOR CO.
Set the transmission case on the converter housing, then install the six Collar Bolts and Washers.

Fig 5: Installing Collar Bolts And Washers
Courtesy of FORD MOTOR CO.
Turn the shim selection gauge to increase the clearance by using the rods until the shim selection gauge no longer turns. This seats the bearing race. Turn the shim selection gauge in the opposite direction until the preload is eliminated (gap is reduced).

Fig 6: Checking Clearance
Courtesy of FORD MOTOR CO.

NOTE: Read the preload when the differential starts to turn.

NOTE: Take several measurements and calculate the average value.

Fig 7: Adjusting Clearance Of Shim Selection Gauge

Courtesy of FORD MOTOR CO.

Insert the Differential Rotator and attach a torque wrench to the Differential Rotator. Measure the drag on the differential bearing.
- Adjust the clearance of the Shim Selection Gauge, using the Rods to obtain the specified preload.

NOTE: Measure the clearance around the entire circumference. Select the shim(s) based on the largest clearance.

NOTE: Use no more than three shims.

Fig 8: Measuring Gap Between Two Halves Of Shim Selection Gauge

Courtesy of FORD MOTOR CO.

Use a feeler gauge to measure the gap between the two halves of the shim selection gauge. Add 0.3 mm (0.0118 in) to the largest measurement. Select the shim(s) closest in value to the measurement from the General Specifications chart. Refer to GENERAL SPECIFICATIONS .
Remove Bolts, Washers, transmission case, Collars, shim selection gauge, and the bearing cup.
Use (A) Driver Handle and (B) Bearing Cup Replacer to install the required selective shim(s) and tap the bearing cup into the transmission case.

Fig 9: Installing Selective Shim
Courtesy of FORD MOTOR CO.
Install the transmission case.

Fig 10: Installing Transmission Case
Courtesy of FORD MOTOR CO.

NOTE: Take several measurements and calculate the average value.

Fig 11: Measuring Bearing Preload

Courtesy of FORD MOTOR CO.

Install Differential Rotator and a torque wrench to the pinion shaft through the transmission case. Measure the bearing preload.
Repeat the gauging process if the preload is not within specification.
Remove the transmission case.