JXB Performance Driveshaft Center Support Bearing Upgrade

Fits all 2006 – 2023 Charger/Challenger/300 Variations

• RWD and AWD
• V6 and V8
• All Trims

Fits WD Durango (2011+) and WK2 Grand Cherokee (2011+). All variations including 2WD and 4WD models.

Bushing Options:

– Street (soft/quieter)

– Both Street (soft/quieter) & Track (hard/noisier)

The Problem: The stock center support bearing carrier holds the driveshaft in place with rubber so thin about 20 lbs of force moves it from center to the end of its travel. While that’s great for making sure no NVH makes it to the cabin, it doesn’t keep the bearing centered well under load, allows the bearing to sag over time and ruin the driveshaft alignment, and creates slop in the driveline during shifts and throttle application. Over time the OEM bushing sags and becomes brittle, eventually dry rotting and cracking. Even on the best-kept cars, the stock bushing can start to from cracks in as little as 5-10 years. When the bushing lets go, it can lead to excessive vibration and clunking, and put more stress on the bearing. To make matters worse, the stock carrier is molded onto the center support bearing, so it’s not easy to replace without special tools.

Driveshaft Support & Carrier Bearing FAQ
Why does my Charger or Challenger vibrate during acceleration?

Vibration during acceleration can be related to movement in the driveshaft support system. Over time, the center support carrier bushing can wear or soften, which may allow additional movement and affect alignment under load.
What causes a clunk when shifting or getting on and off the throttle?

A clunk can occur when drivetrain components move more than intended during load transitions. Wear in components like the center support carrier can contribute to that extra movement.
How do I know if my center support bearing or carrier is worn?

Common signs may include vibration at certain speeds, clunking during shifting, or visible wear in the carrier bushing. In many cases, the bushing is the primary wear point rather than the bearing itself.
Can a bad center support bearing cause driveline slack?

Yes, increased movement in the support system can contribute to driveline slack, which may be felt during shifting or throttle changes.
Do I need to replace my entire driveshaft if the carrier bushing wears out?

Not necessarily. In many cases, the issue is related to the carrier bushing rather than the driveshaft itself. Some upgrade options are designed to address the support system without requiring full driveshaft replacement.
Why do factory carrier bushings wear out over time?

Factory bushings are designed with softer rubber to reduce vibration. Over time, exposure to load, heat, and age can cause the material to soften, crack, or lose its ability to properly support the driveshaft.
About This Upgrade

This upgrade is designed to improve how the driveshaft is supported by reinforcing the center support carrier area and helping maintain proper alignment.
What is included with this upgrade?

The upgrade includes a JXB Performance driveshaft center support bearing system with available street and track bushing options.
What’s the difference between street and track bushings?

Street bushings are designed for quieter operation and a more OEM-like feel, while track bushings provide a firmer setup with reduced movement and increased rigidity.
Will this increase vibration or noise?

The street option is designed to maintain a smooth driving experience, while firmer bushing options may transmit more vibration due to reduced movement.
How long does installation take?

Installation is typically straightforward and can often be completed in about an hour.
What vehicles does this fit?

This upgrade fits 2006–2023 Dodge Charger, Challenger, and Chrysler 300 models, as well as 2011+ Dodge Durango and Jeep Grand Cherokee platforms, across various drivetrains and trims.
Does this replace the factory carrier bushing?

This upgrade is designed to address the factory carrier support system, which is commonly integrated into the original assembly.
Is this a good upgrade even if I’m not currently having issues?

Some owners choose to upgrade proactively, as the factory bushing is a wear item that can change over time with use and age.