For 84-14 Jeep®kee XJ, Grand Cherokee ZJ, Comanche MJ, Wrangler TJ, TJ Unlimited, JK & Unlimited JK
Quadratec Part No: 16159.1000 Manufacturer Part No: 1100
Adjustable BumpStops from JKS eliminate the guessing game of choosing the proper bump stop lengths for your application. This innovative solution utilizes a system of three interlocking billet aluminum spacers, each a different size.
1. Please See Instructions!
2. JK Wrangler Requires ACOS or ACOS Pro to be functional.
The spacers can be used independently, or together, to ensure the proper bump stop clearance for any suspension lift and tire combination. Although supplied in three individual sizes, JKS Adjustable BumpStops actually provide six possible bump stop lengths: 0.75", 1.25", 2.00", 2.75", 3.25", and 4.00".
Installation of our Adjustable BumpStops is easy, and setting the desired length can be accomplished without removing the coil springs from the vehicle. This allows the user to conveniently adjust bump stop clearance as required by future changes to vehicle ride height and tire size.
While simple in appearance, bump stops are actually variable-rate springs that function as limiting devices for suspension compression. They are compressed between the chassis and axle under heavy impacts, effectively increasing the suspension spring rate and preventing expensive damage to the engine, fuel tank and chassis. Unfortunately, very few suspension kits address bump stops correctly as it simply isn't possible to suit every application with fixed-length designs due to individual vehicle variances.
Adjustable design ensures correct bump stop clearance for virtually any application Easily compensates for vehicle changes, spring settling and sagging Ensures proper bump stop operation to prevent suspension from bottoming out Conveniently allows changes to bump stop clearance without removing coils from vehicle Three unique sizes provide six possible lengths ranging from 3/4" to 4" Practical upgrade for inferior bump stop extensions and fixed-length designs
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.
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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 FCA (Fiat Chrysler Automobiles). Quadratec, Inc, has no affiliation with FCA. 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 FCA, 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 FCA, 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.