Tools and Materials Needed:
- Socket wrench set
- Universal joint replacement kit (includes new universal joints, snap rings, and grease)
- Pliers
- Screwdriver
- Grease gun
- Safety goggles
- Gloves
Procedure:
1. Safety First: Ensure the vehicle is parked on a level surface and engage the parking brake. Wear safety goggles and gloves to protect yourself.
2. Locate the Universal Joint: The universal joints are located between the transmission and the differential. There are usually two universal joints on a driveshaft.
3. Remove the Driveshaft:
- Loosen the bolts connecting the driveshaft to the transmission and the differential using the socket wrench.
- Support the driveshaft to prevent it from falling.
- Slide the driveshaft out carefully, ensuring you take note of the orientation of the universal joints.
4. Disassemble the Universal Joint:
- Use a screwdriver to pry off the snap rings holding the universal joint in place.
- Remove the bolts or screws securing the universal joint to the driveshaft using the socket wrench.
- Separate the universal joint from the driveshaft.
5. Install the New Universal Joint:
- Position the new universal joint in place and align it correctly.
- Insert the bolts or screws and tighten them securely.
- Snap on the new snap rings to hold the universal joint in place.
6. Reinstall the Driveshaft:
- Reinsert the driveshaft into its original position, aligning the universal joints correctly.
- Secure the driveshaft to the transmission and differential using the bolts you removed earlier.
7. Grease the Universal Joint:
- Using a grease gun, apply grease to the universal joint to ensure smooth movement and reduce wear.
8. Test Drive:
- After completing the replacement, take the vehicle for a short test drive to ensure there are no vibrations or unusual noises coming from the driveline.
Note:
- The process of replacing the universal joint may vary slightly depending on the exact model and year of your Nissan truck.
- If you're not comfortable performing this task yourself, it's best to seek assistance from a qualified mechanic or refer to a vehicle-specific repair manual.