Drive Pinion Assemble
Drive Pinion AssembleInner Bearing Installation Procedure
^ Tools Required
- J5590 Rear Pinion Bearing Cone Installer
- J8092 Driver Handle
- J29609 Rear Pinion Bearing Cup Installer
1. Use the J5590 in order to install the inner drive pinion gear bearing (1) onto the drive pinion gear (2)
2. Use the J8092 and J29609 in order to drive the inner bearing race (1) into the rear axle housing, if the inner drive pinion gear bearing was replaced.
3. Install the new drive pinion gear bearing spacer onto the drive pinion gear.
Outer Bearing Installation Procedure
^ Tools Required
- J7817 Front Pinion Bearing Cup Installer
- J8092 Driver Handle
1. Use the J8092 and the J7817 in order to install the drive pinion gear outer bearing race into the rear axle housing if you remove the pinion gear outer bearing race.
2. Install the drive pinion gear outer bearing into the rear axle housing.
3. Install the differential drive pinion gear seal.
Drive Pinion Installation Procedure
^ Tools Required
- J7817 Front Pinion Bearing Cup Installer
1. If a new ring gear and a new drive pinion gear will be installed, measure the differential drive pinion gear depth.
2. Install the drive pinion gear into the rear axle housing.
3. Use the J7817 in order to install the new drive pinion gear seal (1).
4. Apply pipe sealant (GM P/N 12346004) or an equivalent onto the pinion shaft splines.
5. Install the drive pinion gear yoke.
6. Install the drive pinion gear washer and nut. Hand tighten the drive pinion gear nut.
7. Perform the following actions in order to tighten the drive pinion gear nut.
^ Hold the drive pinion gear yoke in place.
^ Rotate the drive pinion gear in order to seat the inner and outer drive pinion gear bearings.
^ While rotating the drive pinion gear, tighten the drive pinion gear nut until the end play is taken up.
Important:
^ Preload specifications are being approached when the following conditions occur:
- The holder will no longer pivot freely the drive pinion gear rotates.
- No further end play exists
Do not attempt further tightening until after measuring the preload if the above conditions exist.
^ Exceeding the preload specifications will compress the collapsible drive pinion gear bearing spacer too far.
8. Set the preload to the following specifications on the inner and outer drive pinion gear bearings:
^ 1.7 - 3.4 Nm (15 - 30 inch lbs.) on new inner and outer drive pinion gear bearings
^ 1.0 - 1.7 Nm (10 - 15 inch lbs.) on used inner and outer drive pinion gear bearings
9. Rotate the drive pinion gear several times. Ensure that the inner and outer drive pinion gear bearings seat.
10. Carefully tighten the drive pinion gear nut.
11. Continue to gradually tighten the drive pinion gear nut. Measure the preload after each tightening. Additional tightening of the drive pinion gear nut may add additional torque.
12. Measure the preload again.
13. Reset the preload to specifications if the preload decreased by rotating the drive pinion gear.
14. Install the differential carrier.