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Jeep Wrangler TJ - Rebuilding a Rubicon Express SuperFlex Joint

Posted in How To: Suspension Brakes on January 9, 2007 Comment (0)
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Rubicon Express Super-Flex joints are standard equipment in Rubicon Express suspension systems. The greasable joints are easily rebuildable should one fail, ensuring a long life for the other suspension components.

No matter how stoutly you build your rig, you'll undoubtedly hear that crack, snap, pop, crunch, or smash that means it's time to get out the tools and get dirty. Such was the case with our seemingly indestructible Jeep TJ when we first detected that the vehicle lunged and settled whenever the transmission was engaged in Drive or Reverse. After poking around, we discovered a blown-out Super-Flex joint located in the rear upper control arm of our Rubicon Express 5.5-inch Extreme Duty suspension system.

Thankfully, Rubicon Express anticipates such occurrences and offers Super-Flex joint rebuild kits with the tools to complete the job. Tri-County Gear in Pomona, California, carried out the joint rebuild, and we were up and running in no time.

Once the rear upper control arm was removed from the vehicle, the Super-Flex Control Arm Tool was used to remove the Super-Flex joint. It was apparent that the joint's inners were damaged before disassembly, but we didn't know to what extent until we were able to remove the recirculating ball and races. The ball was chipped and galled where the bolt had snapped, and one of the races had split in half. Once again, proper lubrication could have prevented this damage.

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