Propeller Shaft Balance Check

NOTE: The driveline components in this vehicle have been factory balanced. Balancing provides a smoother running driveling operation. However, it is essential that the positions of all drive line components relative to the propeller shaft and axles be observed and accurately reference marked prior to disassembly. These components include the propeller shafts, drive axles, pinion flanges, output shafts, etc. All components must be reassembled in the exact relationship to each other as they were when removed. Specifications and torque values, as well as any measurements made prior to disassembly, must be followed to maintain the factory balance.

Important:
- Never vent or fill the propeller shaft with an aerosol foam product. This will cause an excessive imbalance condition.
- In order to get an accurate check, it is necessary to lid the vehicle by-the axle or the suspension to duplicate actual conditions. By doing this, the ping ion angle will be as close as possible to normal.

REMOVE OR DISCONNECT
1. Raise the vehicle on a twin post hoist so that the wheels can spin.
2. The tire and wheel.
3. The rear brake drums.

CAUTION: Do not apply the brakes with the drums removed. System damage or personal injury may result.

Inspect
^ The propeller shaft, universal joints and attachments for mud, undercoating or loose fasteners.

Clean
^ The propeller shaft, universal joints and attachments with an approved solvent.

- Tighten any loose attachments or fasteners to specifications given.

CAUTION: Never run the vehicle higher than 89 km/h (55 mph). All persons should stay clear of universal joints and balance weight areas to avoid possible injury. Do not run the vehicle on the hoist for extended periods due to the danger of overheating the transmission or engine.

- Test-Run the vehicle in gear at the speed where the disturbance peaks. Observe the intensity of the disturbance.
- Stop the engine.
4. The propeller shaft.
- Rotate the propeller shaft 180° from the original position.

Clean
^ The mating surface bearing caps, bearing straps and pinion yoke of corrosion using crocus cloth or 400 grit sandpaper.

INSTALL OR CONNECT
1. The propeller shaft.
- Determine the position which gives the least disturbance by repeating the previous test.
2. The brake drums.
3. The tire and wheel.
- Road test.
- If the balance is unacceptable, replace the propeller shaft.