Here's a breakdown of options:
1. Lubrication (Temporary Fix):
* What to use: Use a high-quality grease designed for wheel bearings. Avoid anything with molybdenum disulfide (MoS2) as it can attract dirt.
* How to do it: You'll need to disassemble the hubs partially to access the internal mechanism. This usually involves removing a retaining nut or clip and carefully separating the hub components. Apply grease liberally to all moving parts, reassemble, and test. This is a relatively simple process, but consulting a repair manual specific to your 1996 Tracker is crucial. Improper disassembly can damage the hubs further.
Important Note: If the hubs are worn, binding, or showing other signs of damage, lubrication will only provide a short-term fix, and you risk damaging the axle components.
2. Replacement (Recommended Solution):
Replacing your manual locking hubs is the best long-term solution. You have several choices:
* OEM (Original Equipment Manufacturer) Hubs: These are the same hubs that came with your vehicle. They'll provide a perfect fit and reliable performance, but they can be more expensive.
* Aftermarket Hubs: Many aftermarket companies produce locking hubs for the 1996 Chevy Tracker. These are generally cheaper than OEM hubs, but the quality can vary. Research reviews carefully before purchasing to ensure you're getting a reliable product. Some aftermarket hubs are automatic locking hubs, offering a convenient upgrade.
* Automatic Locking Hubs (Upgrade): Consider upgrading to automatic locking hubs. These engage and disengage automatically based on wheel speed, eliminating the manual operation. This is a popular upgrade for increased convenience and reduced wear and tear on the hubs and axles.
Replacement Process: Replacing the hubs involves removing the old hubs from the axle, installing the new hubs, and torquing them to the manufacturer's specifications. This is more involved than lubrication and usually requires the use of tools like a socket wrench, hammer, and possibly a hub removal tool. Again, a repair manual for your specific vehicle is essential.
In short: Lubricating the hubs might temporarily alleviate symptoms, but replacing them is the proper way to address the issue. If you're not comfortable working on your vehicle, take it to a qualified mechanic. Attempting repairs without proper knowledge can cause more damage and lead to costly repairs.
