2024 Jeep Wrangler Rear Axle Noise TSB 03-007-24

Owners of certain 2024 Jeep Wrangler models may notice an unusual "Rear Axle Noise" emanating from the vehicle's rear. This issue, characterized by grinding, screeching, or ratcheting sounds, is addressed by Technical Service Bulletin (TSB) 03-007-24 REV. A, issued by Stellantis on July 19, 2024. This bulletin provides a repair procedure to resolve the noise by ensuring proper lubrication of critical rear axle components.

This TSB 03-007-24 REV. A supersedes an earlier version of TSB 03-007-24 dated July 16, 2024, and incorporates updated build information. It has also been released as Rapid Service Update (RSU) 24-104.

Symptoms

If your 2024 Jeep Wrangler is affected, you may experience the following symptom:

• "Intermittent grinding, screeching, ratcheting noise coming from the right hand side of vehicle on the rear axle."

This 2024 Jeep Wrangler rear axle noise is typically heard from the right-hand side of the vehicle.

Cause of the Noise

The root cause of the "Rear Axle Noise" is identified as a lack of lubrication between the axle shaft and hub splines. Over time, insufficient lubrication can lead to friction and wear, resulting in the audible grinding, screeching, or ratcheting sounds.

Repair Procedure Summary

The repair outlined in TSB 03-007-24 REV. A involves a detailed process to clean and lubricate the axle shaft and hub splines. Technicians will first remove the brake caliper, rotor, and wheel speed sensor, followed by disconnecting the parking brake cable. The hub assembly and axle shaft are then carefully removed from the axle housing.

Once removed, the interface of both the shaft splines and hub splines are thoroughly cleaned using brake cleaner and a wire brush to eliminate any fretting or corrosion. Forced air is used to ensure all debris is removed. Afterward, wheel bearing grease is applied to fully coat the spline interfaces on both the shaft and hub. The axle shaft is then reinstalled into the hub, and the entire assembly is reinstalled into the vehicle, including new hub nuts. The process concludes with reconnecting the parking brake cable, reinstalling the wheel speed sensor, brake caliper, and rotor.

Required Parts

To perform this repair, the following parts may be required:

• 05083150AA: Mopar® Wheel Bearing Grease (1/100 of a 14.5 ounce cartridge)
• 68003275AA: Hex Flange Lock Nut (for tube flange to hub unit nut)
• 68651258AA: O-Ring (for wheel hub bearing)

Important Warnings for Owners

To determine if this service action applies to your vehicle, your VIN must be listed in the VIP system or the RSU VIN list. However, if your vehicle exhibits the described symptoms, such as the 2024 Jeep Wrangler rear axle noise, even if it's not on the VIN list, the repair procedure should still be performed by a qualified technician. All repairs related to this TSB 03-007-24 are reimbursable within the provisions of your vehicle's warranty.

What Owners Should Do

If you own a 2024 Jeep Wrangler and are experiencing "Intermittent grinding, screeching, ratcheting noise coming from the right hand side of vehicle on the rear axle," it is recommended to contact your authorized Jeep dealership. They can verify if your vehicle is covered by TSB 03-007-24 REV. A or RSU 24-104 and perform the necessary cleaning and lubrication of the axle shaft and hub splines.

NHTSA ID: 11005012