2014-2020 Ram 2500 & 3500 Front Hub Assembly: Noises, Failure Mileage & Replacement

Symptoms of a Failing Hub Assembly

A failing wheel hub assembly on a Ram 2500 or 3500 will almost always provide warning signs. Ignoring these can lead to a complete failure where the wheel can separate from the vehicle, causing a loss of control. Listen and feel for these common symptoms.

1. Grinding, Humming, or Growling Noises

The most common symptom is a noise coming from the front wheel area. This can be described as a grinding, humming, growling, or rumbling sound. The noise is often speed-dependent, meaning it gets louder or changes pitch as you drive faster. A key diagnostic trick is to notice if the sound changes when turning; for example, a failing right-side hub may get louder when you turn left, as more weight is placed on it.

2. Steering Wheel Vibration or Wobble

As the internal bearings wear out, they develop excessive play. This can translate into a vibration or wobble that you feel in the steering wheel. It might feel similar to an unbalanced tire, but it is often accompanied by the noises described above. In severe cases, the steering may feel loose or sloppy.

3. ABS Warning Light

The ABS wheel speed sensor is integrated directly into the hub assembly. When the bearing fails, the excessive movement can damage the sensor or disrupt the signal it sends to the truck's computer. This will trigger the ABS warning light on your dashboard. Often, an ABS light is the first and only symptom a driver notices.

4. Clicking or Popping Sounds

In addition to grinding, you might hear clicking or popping noises, especially during turns. This can indicate significant play within the bearing assembly.

How to Confirm a Bad Hub Assembly

If you suspect a hub is failing, you can perform a physical check:

1. Safely raise the front of the truck so the wheel is off the ground and the suspension is hanging freely.
2. Place your hands at the 12 and 6 o'clock positions on the tire and try to rock it back and forth.
3. Next, place your hands at the 9 and 3 o'clock positions and do the same.
4. If you feel any significant play, movement, or hear a clicking sound, the hub assembly is likely worn out and needs replacement.
5. With the wheel still in the air, spin it by hand. Listen for grinding and feel for any roughness or resistance. A good hub will spin smoothly and quietly.
🎬 See a quick video demonstration of common bad wheel bearing symptoms

Known Issues, TSBs, and Recalls

While there are no widespread recalls specifically for the hub assemblies on these trucks, there are related issues owners should be aware of.

• ABS System Recall (NHTSA 24V-896): Affecting some 2017-2018 Ram 2500 and 3500 models, this recall addresses a faulty ABS Hydraulic Control Unit (HCU) that can disable the anti-lock brakes and stability control. While not a hub issue itself, an ABS light could be related to this recall, so it's important to check your VIN.
• Wheel Stud Recall (NHTSA 21V-398): A major recall was issued for many 2012-2021 Ram 3500 and some 2500 trucks because the owner's manual listed an incorrect, overly high torque spec for the lug nuts. This could lead to stretched or broken wheel studs. The remedy included a new manual insert with a corrected torque spec of 129 ft-lbs. Always verify this recall has been performed.
• No Official TSBs for Hubs: Searches have not revealed any Technical Service Bulletins (TSBs) directly related to premature hub assembly failure on these specific models. However, owner forums contain numerous reports of failures.

Buying a Used Hub Assembly: What to Look For

A high-quality, low-mileage used OEM hub assembly can be a reliable and cost-effective alternative to expensive new parts. Cheap aftermarket hubs have a reputation for premature failure, making a recycled OEM part a smarter choice for longevity.

1. Mileage is a Key Factor

Hub assembly lifespan varies greatly depending on usage, tire size, and environmental factors like road salt. Some owners report failures as early as 50,000 miles, while others last well over 150,000 miles. Generally, a used hub assembly with under 75,000 miles is considered a good candidate, but physical inspection is more important than mileage alone.

2. Physical Inspection Checklist

• Check for Play: Even off the vehicle, try to wiggle the hub flange. There should be zero perceptible play or roughness.
• Inspect the ABS Sensor and Wire: Ensure the ABS sensor is intact, and the wiring harness is not cut, frayed, or damaged. A damaged wire will render the part useless without repair.
• Examine the Mounting Flange: Check the 4-bolt square mounting flange for any cracks or damage.
• Look at the Wheel Studs: Ensure all 8 wheel studs are straight, and the threads are in good condition. Avoid any hub with visibly stretched, damaged, or broken studs.
• Check for Corrosion: Heavy rust, especially around the mounting flange or where the bearing is sealed, can indicate a hard life and potential water intrusion. Light surface rust is normal.

3. Compatibility and Part Numbers

This front hub assembly fits both 4x2 (RWD) and 4x4 (4WD) models of the 2014-2018 Ram 2500 and 2014-2020 Ram 3500, including single and dual rear wheel configurations (SRW/DRW). The confusion in the initial data regarding rear axles is because rear hubs are entirely different parts, especially for dually models. This guide and these part numbers are for the front position only.

• Verified OEM Part Numbers: 68185437AB, 68185437AC, 68185437AD, 68185437AE, 68296958AA, 68450889AA, 68450889AB
• Common Aftermarket Cross-References: MOOG 515162, SKF BR930553

Cost of Replacement

The cost to replace a hub assembly can vary significantly based on the part source and labor rates.

Replacement Procedure Overview & Torque Specs

Replacing the front hub assembly is a feasible DIY job for someone with mechanical experience and the right tools, but it requires dealing with very high torque values. The difficulty is moderate due to the heavy components and high torque specs.

Special Procedure for Axle Nut: The axle nut requires a two-stage torque procedure. First, torque it to the initial spec (e.g., 132 ft-lbs). Then, rotate the hub assembly by hand 5 to 10 times to properly seat the new bearing. 🎬 Watch a full front wheel bearing replacement walkthrough on a Ram 3500 Finally, apply the final, much higher torque (e.g., 263 ft-lbs).

Frequently Asked Questions (FAQ)