Super-Flex Joint Replacement Liners Rebuild your Rubicon Express Super Flex Joints with precision-made replacement liners. If you're still running Rubicon Express Super Flex Joints, you know they're built to last. But when it's time for a rebuild, finding quality replacement parts can be a challenge. These precision-manufactured liners solve that problem, bringing your joints back to like-new performance for reliable articulation in demanding off-road conditions. Manufactured from high-quality Delrin material for durability and smooth operation. Designed specifically for Rubicon Express Super Flex Joints (part numbers RE3797 and RE3798). Each kit contains a pair of liners to rebuild one complete joint. Weight: 0.15 lbs. Key Features Part Number: PN2813 Fitment: Rubicon Express Super Flex Joints RE3797 and RE3798 Material: High quality Delrin Dimensions: Precision-machined to OEM specifications Design: Direct replacement liners, sold in pairs for complete joint rebuild What's Included 2x Delrin replacement liners Notes Sold in pairs to rebuild one Super Flex joint