1. Use the handbrake to secure the vehicle. This will prevent the vehicle from moving forward or backward while supported by the safety brace.
2. Loosen the rear wheel fixing nut and push the rear wheel of the vehicle off the ground. Install brackets on each side of the vehicle to serve as safety supports underneath the vehicle. Remove the retaining nut and rear wheel.
3. Remove the brake caliper from the pillar assembly. Then use a flat chisel and hammer to remove the grease cap. Remove the cotter pin and loosen the castle nut. The hub assembly is now free and can be removed from the axle. The outer wheel bearing and washer are loose and can be easily removed.
4. Remove the old grease seal from the hub assembly. This can be done by manipulating the used oil seal with a screwdriver or lever. Thoroughly clean the hub assembly. There will be two visible mounting notches on opposite sides of the hub assembly, 180 degrees apart.
5. Insert a small punch into an indentation and tap lightly with a hammer. Repeat this process on opposite indentations until the bearing race is completely removed. Be careful not to create any dents or burrs as this will prevent the new bearing set from fitting properly. Perform the same steps on the opposite wheel to remove both wheel bearings.
6. Use a hydraulic press to install the new bearing race. Make sure to use the correct size clamp socket or socket. If you don't have a hydraulic press, you can use a hammer and a flat punch or socket. These should be used with great care so that the tapered shaft area is not scratched or damaged as this will cause high spots that will damage the new bearing races when installed.
7. Put a small amount of grease in the palm of your hand, and then hold the bearing with your other hand. Knock the bearing into the new grease, making sure the grease between the bearing cage and rollers surrounds the entire circumference of the new bearing. Squeeze the remaining grease onto the hub cap, insert the lubricated bearing into the hub, and tap until it engages properly. Turn the hub over and install the new outer bearing and washer into the hub.
8. Install the hub assembly into the shaft and tighten the fixing nut. This will correct the required bearing preload. Gradually turn the hub assembly while tightening the retaining nut. When the bearing begins to bind when tightened, loosen the nut slightly until the bearing spins freely again, then allow the associated wrench or rod to drop on its own. The preload on the bearing now meets the required preload specification. Reinstall the new cotter pin and reinstall the grease cap or dust cap. 9. Reinstall all components in the reverse order of disassembly to complete the replacement of the rear wheel bearing of the Nissan pickup truck.