D ifferential Bearing A djusting Shims

Examples of shim selection-

Markings on Pinions Difference

New Between Pinion Markings

Old Pinion

Amount To Change Each Shim Pack

+8 +5 +3 D ecrease .003" +5 +8 -3 Increase .003" -5 -3 -2 Increase .002” -3 -5 +2 D ecrease .002” + 5 -3 +8 D ecrease .008" -4 +2 -6 Increase .006"

4. When the approximate shim packs have been sleeted, install inner bearing shim pack in carrier and install cup, using Tool J 9276-2 to seat cup tight against shims.

5. Insert pinion and inner bearing cone in carrier and install outer bearing shim pack on end of pinion. Install outer bearing cone, using Tool J-5590 to seat bearing tight against shim pack. Do not install oil seal at this time. 6. Install pinion flange, washer and nut, using Tool J-8614 to hold flange while tightening nut to 210 ft. lbs. torque.

7. Determine proper pinion depth using Pinion Depth Gauge, Tool J- 5341, with Tool J-7892 (SE-1065-1, (2)-5, (2)-6, (2)-9SS, (1)-10, (l)-58 with 1" micrometers). W hen using the micrometer gauge, the actual pinion depth setting can be determined by adding the micrometer gauge reading to the thickness of the step plate and comparing the result with the nominal dimension of 2.625" plus or minus the marking on the face of the pinion. If the difference in the two figures is less

than minus .001" to plus .003", the pinion depth is satisfactory. If not, change pinion bearing shim packs to make the two figures correspond within the specified limits. 8. Using a troque wrench calibrated in inch pound and a suitable socket, check pinion bearing preload. The rotating torque of the pinion shaft should be 10 to 20 inch pounds. Add or remove shims behind the outer bearing cone to bring preload within limits. 9. W hen pion depth and bearing preload are within limits, install differential in carrier, adjust differential bearing preload and ring gear backlash and complete the axle assembly as outlined under "Differential-Installation."

10. Remove flange and install slinger, new oil seal, flange and propeller shaft.

NOTE: If not completely assembled, refer back to Step 3, page 3-1 to install differential into carrier housing.

11. Fill unit with recommended lubricant, lower vehicle on hoist, and road test vehicle.

AXLE SHAFT GUIDE AND OIL SEAL REPLACEMENT

The axle shaft guides and oil seals, located just outboard of the differential bearings, can be replaced only after removal of the differential. 1. Remove differential as outlined previously. 2. Drive the guides and seals inboard out of carrier. 3. Install new guides in tube. 4. Lubricate new oil seals and install in tube, with lip of seal inboard, with J-8107-4.