Rear Drive Axle/Differential - Dana 60 and 70

Drive Pinion Flange and Drive Pinion Seal

Special Tool(s):

Material:

Removal
1. Raise the vehicle on a hoist or raise the rear end of the vehicle with a Jack. Install safety stands under the frame rails and lower the Jack or hoist enough to allow the rear axle to drop into the rebound position for working clearance.





2. Index-mark the driveshaft flange and the pinion flange to maintain driveline balance during assembly.





3. Remove the 4 bolts.





4. CAUTION: The driveshaft flange fits tightly on the pinion flange pilot. Never hammer on the driveshaft or any of its components to disconnect the driveshaft flange from the pinion flange. Pry only in the area shown, with a suitable tool, to disconnect the driveshaft flange from the pinion flange.

Using a suitable tool as shown, disconnect the driveshaft flange yoke from the pinion flange and position the driveshaft aside.





5. CAUTION: Index-mark the pinion flange to the pinion shaft prior to removal.

Use the special tool to prevent the flange from turning while removing the locknut and washer.





6. Using the special tool, remove the pinion flange.





7. Using the special tools, remove and discard the pinion seal.
8. Clean the pinion seal seat.

Installation
1. Lubricate the pinion seal rubber lips with the specified lubricant.





2. Using the suitable driver, install the pinion seal.
^ After installation, verify that the garter spring did not pop out of the seal. If the garter spring popped out, install a new pinion seal.
3. Coat the inside of the pinion flange with a small amount of the specified lubricant.
4. Install the pinion flange.





5. CAUTION: Always install a new washer and lock nut.

Use the special tool to prevent the flange from turning while installing the new washer and locknut.
^ Tighten to 339 Nm (250 ft. lbs.).





6. CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply threadlock to the threads of the original bolts.

CAUTION: The driveshaft flange fits tightly on the pinion flange pilot. To make sure that the driveshaft flange seats squarely on the pinion flange, tighten the bolts evenly in a cross pattern as shown.

Position the driveshaft flange on the pinion flange with the index marks aligned and install the bolts.
^ Tighten to 112 Nm (83 ft. lbs.).
7. Check and as necessary, fill the axle with the specified type and amount of lubricant.
8. Lower the vehicle.