Differential Bearing Preload Adjustment
- Differential bearing preload must be determined prior to reassembly. Ensure bearing race is installed without shim into converter housing. Install differential assembly into converter housing. Position differential side bearing race in recessed end of Gauge Tool (T88C-77000-C). Place gauge tool on differential.
- Ensure gauge tool is completely threaded together so that no gap is present. Position spacer collars and assemble case halves using supplied bolts and washers of gauge tool set. Tighten bolts to 32-35 ft. lbs. (43-47 N.m). See Fig 1
.
- Unthread gauge tool until differential bearings are seated. Install Differential Rotator (T92P-770000-BH) into differential assembly. See Fig 2
. Using INCH-lb. torque wrench, rotate differential assembly while unthreading gauge tool. Unthread gauge tool until 9 INCH lbs. (1.0 N.m) of turning torque is obtained.
- Using feeler gauge, measure gauge tool gap. See Fig 3
. Select correct shim(s) equal to measured gauge tool gap. Use largest of measurements to select proper differential bearing shim. Shims are available from .019" (.48 mm) to .036" (.92 mm) in .002" (.04 mm) increments.
- Disassemble case halves. Remove gauge tool set and spacers. Install selected shim(s) in transaxle case. DO NOT exceed 3 shims. Remove bearing race from gauge tool and install race in transaxle case.
Courtesy of FORD MOTOR CO.
Courtesy of FORD MOTOR CO.
Courtesy of FORD MOTOR CO.