JXB Performance Driveshaft Center Support Bearing Carrier Upgrade - VW B5/B5.5 Passat 4Motion
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The stock center support bearing carrier holds the driveshaft in place with rubber so thin that only about 20 lbs of force will move it from center to the end of its travel. While that’s great for making sure no NVH makes it to the cabin, the stock bushing is extremely prone to failure, especially in harsher climates and on higher-powered cars. Even on the best-kept cars, the stock rubber bushing sags, dry rots, and cracks by the time it’s 10-15 years old. When the bushing lets go, it leads to excessive vibrations and clunking which can damage the transmission and rear diff. To make matters worse, the stock carrier is molded onto the center support bearing, leading to costly driveshaft replacement.
B5/B5.5 Passat Fitment Notes
From the factory, B5 and B5.5 4Motion models often have a poorly aligned driveshaft. The OEM carrier does not center the driveshaft well, but this often isn't an issue simply because the OEM bushing is so soft that it doesn't cause any excessive vibrations. With the JXB carrier, you may notice increased vibration and harshness.
Two options are available for the bushings, both of which are many times stiffer than the stock bushings. We’ve paid close attention to the NVH levels associated with this upgrade. We’ve engineered custom isolator bushings that separate the carrier from the body of the vehicle and mounting bolts to substantially reduce NVH levels.
The street bushings absorb most of the NVH from the drivetrain. Expect some light NVH at some speeds in the form of a soft hum. With a modified exhaust or windows down you’ll probably never hear it. Most NVH is heard between 20-40 mph. At highway speeds it fades away.
The track bushings are for those who want no-compromise drivetrain performance. These may create a substantial amount of cabin noise throughout the low range, again fading at higher speeds, but not entirely. Not sure which is for you? Try them both, they’re interchangeable!
Installation doesn’t require removal of the driveshaft. The 2-part design clamps around the OEM bearing. The old carrier must be removed, so a cutting tool is required.