TeraFlex has been professionally involved with Jeeps since the 1950s and our experience has taught us how to make them perform their best. Since the beginning of TeraFlex we have constantly added unique and innovative products to make our line what it is today. TeraFlex was started in the fall of 1996 to meet the needs of the growing market for heavy duty off road equipment and suspension enhancements. Since that time TeraFlex has had a dominant hold on the Jeep market. TeraFlex was the first aftermarket manufacturer with a suspension system for the TJ Wrangler, and is still the only aftermarket company to offer a solution for the venerable 231 transfer cases low range gearing. In 2001 the entire off road industry was stunned at the CRD60 - an off road specific high-pinion 60 differential that took innovation to a new level, and reinforcing our position in the industry. Continuing our stronghold, we offer the most comprehensive list of performance components for the JK Wrangler of any other manufacturer to date. For complete performance with unsurpassed dependability - Get the TeraFlex Advantage today.