Tools You'll Need:
* Socket set: Including metric and possibly SAE sockets (depending on your Bronco's specific configuration). You'll need sockets for the lug nuts, the hub nuts, and possibly other fasteners.
* Wrench set: A combination of metric and SAE wrenches may be needed.
* Lug wrench: To remove the wheels.
* Hammer: For potentially stubborn parts.
* Pry bar (optional): To help separate parts if they're stuck.
* Grease: For the new hubs.
* Torque wrench: Essential for tightening the nuts to the correct specifications (consult your owner's manual).
* Jack and jack stands: Absolutely crucial for safety. Never work under a vehicle supported only by a jack.
* Wheel chocks: To prevent the vehicle from rolling.
Steps:
1. Safety First: Park your Bronco on a level surface, engage the parking brake firmly, and chock the rear wheels. Raise the vehicle using the jack and securely place it on jack stands.
2. Remove the Wheel: Remove the lug nuts from the wheel you're working on and carefully remove the wheel.
3. Disconnect the Brake Caliper (Optional but Recommended): Some find it easier to remove the brake caliper to provide better access. Use a suitable wrench to loosen the caliper mounting bolts and carefully hang the caliper out of the way using a bungee cord or wire. Be careful not to damage the brake line.
4. Remove the Cotter Pin and Castle Nut: Locate the large castle nut on the end of the axle shaft. Remove the cotter pin and then carefully unscrew the castle nut using a socket wrench.
5. Remove the Hub: With the nut removed, the hub assembly should come off. You may need to gently tap it with a hammer to loosen it. It's important to tap it evenly to avoid damaging the axle shaft. If it's particularly stubborn, a pry bar (used carefully!) can assist.
6. Inspect the Old Hub: Before installing the new hub, inspect the old one for any signs of damage or wear that might indicate a problem with the axle or other components.
7. Install the New Hub: Grease the new hub's splines and carefully slide it onto the axle shaft.
8. Install the Castle Nut and Cotter Pin: Tighten the castle nut to the manufacturer's specified torque using a torque wrench. This is crucial; over-tightening can damage the axle. Once tightened, insert the cotter pin through the hole in the nut and axle shaft. Bend the ends of the cotter pin to secure it in place.
9. Reconnect the Brake Caliper (If Removed): Reinstall the brake caliper, ensuring that it's properly secured and the brake line is undamaged.
10. Install the Wheel: Carefully reinstall the wheel and tighten the lug nuts in a star pattern, gradually tightening each nut until they're snug. Then, using a torque wrench, tighten the lug nuts to the manufacturer's specifications (consult your owner's manual).
11. Lower the Vehicle: Carefully lower the vehicle using the jack. Double-check all bolts and nuts.
12. Test Drive: Before driving the vehicle, ensure the hubs work correctly by driving off-road in varying conditions. Listen for any unusual noises.
Important Considerations:
* Parts: Make sure you purchase the correct automatic locking hubs for your specific 1996 Ford Bronco model.
* Torque Specifications: Always refer to your owner's manual for the correct torque specifications for the lug nuts and the hub nut. Using the incorrect torque can lead to damage.
* Professional Help: If you're not comfortable performing this repair yourself, take your Bronco to a qualified mechanic. This is a relatively simple job, but improper installation can have serious consequences.
This guide provides general instructions. Specific details may vary depending on your Bronco's exact model and condition. Always consult your owner's manual for detailed information and torque specifications. Remember safety first!
