This shift link adapter kit will make shifting your 231 into all low range sectors
simple and fluid. This adapter kit changes the trouble prone stock linkage which is not reliable due to independent body & drivetrain movement... more
The Extreme Short Shaft kit is what short wheelbase Wrangler owners have been
dreaming of for decades. The Extreme kit not only improves on strength, but also
increases driveshaft lengths by up to 7" over a stock application... more
The JK Axle Sleeve and Gusset kit is designed to reinforce the weak axle tubing and knuckles on JK Dana 30 or 44 factory axles. The sleeves are designed to slide inside the factory tubes and provide increased durability and support throughout the axle... more
The JK Axle Sleeve Kit was created as a way to reinforce the weak factory axle tubing. The sleeves are designed to slide inside the factory tubes and provide increased durability and support throughout the axle... more
The Tera Low231 conversion kit is the
solution for providing Wranglers, Cherokees,
and Comanches with low crawl ratios. This kit
provides rock-crawling performance without
affecting high range gears for daily drivers,
or the trip to and from the back country.
It provides a true 4.0:1 reduction through a heavy duty 5 gear planetary system... more
This short shaft kit, or slip yoke eliminator, with the new, heavy duty shaft is engineered to withstand the increased torque (50% increase) generated by extreme reduction of the Tera Low231.
The kit also eliminates the need to lower the transfer case in most cases by increasing the rear driveshaft length by four inches... more
The Tera Low231 conversion kit is the solution for providing Wranglers, Cherokees, and Comanches with low crawl ratios. This kit provides rock-crawling performance without affecting high range gears for daily drivers, or the trip to and from the back country... more
The following parts require additional handling charges due to their large size or
weight: wheels, tires, full suspension lift kits, oversized bumpers, tire carriers, body tubs, hard tops
and cargo racks. The following parts do not qualify for free shipping: Oversized items and items
delivered by truck freight, as well as prior purchases and returns.
Jeep Parts & Jeep Accessories Take your Jeep to the next level with the parts found on our site. We are a leading Jeep accessories retailer, providing performance products for our customers. We work hard to give you the best information to turn your vehicle into a top-notch ride. Whether you are looking for 4wd suspension parts & accessories or want improved Jeep performance, we have the parts & Jeep accessories you need.
The terms Quadratec and Essentials are Registered Trademarks of Quadratec Incorporated, Registered in U.S. Patent and Trademark Office. All manufacturers names, numbers, symbols and descriptions are used for reference purposes only, and it is not implied that any part listed is the product of these manufacturers or approved by any of these manufacturers.
*Jeep, Wrangler, Rubicon, Renegade, CJ, Quadra-Trac and the Jeep Grille Design are registered trademarks of Chrysler LLC. Quadratec, Inc, has no affiliation with Chrysler LLC. Throughout this website and catalog the terms Jeep, Wrangler, MOPAR®, & Rubicon are used for identification purposes only. Geo is a registered trademark and Tracker is a registered trademark of the General Motors Company. Sidekick and Samurai are trademarks of Suzuki Motor Corporation. Amigo is a product of Isuzu Motors Limited. Chevrolet, the Chevrolet Emblem, S Series, GMC, GMC Truck, Chevy, Vortec and Sonoma are registered trademarks of the General Motors Company. Expedition, F-Series, F-150, F-250, F-350, Super Duty and Flare Side are registered trademarks of the Ford Motor Company. All other marks, names, and logos mentioned on this web site are the property of their respective owners.
Throughout this web site all the preceding marks & logos are used for identification purposes only. Quadratec has no affiliation with the Chrysler LLC, MOPAR®, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited. It is not implied that any part listed is a product of, or approved by Chrysler LLC, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited.
Quadratec, Inc. is sometimes mis-searched as Quadartec and Quadratech, we have no affiliation with either. 
* Free Shipping Special Offer Details
To qualify for FREE shipping the parts on an individual order must meet a combined total value of $75 or more. Customer must select Standard Shipping in the checkout and ship to an address in the contiguous 48 United States. Some parts require additional handling charges due to their large size or weight: including wheels, tires, full suspension lift kits, oversized bumpers, tire carriers, body tubs, hard tops, cargo racks, winches and hitches. Oversized items, items that are delivered by truck freight, prior purchases and returns do not qualify for free shipping.