Core 4×4 Rear Bump Stop Extensions for the Jeep Wrangler JL/JLU

Bump stop extensions are a small but crucial step when modifying your rig. When lifting and adding flexibility to your vehicle, the factory-installed bump stops move further apart, putting your vehicle at risk for major damages if it’s not properly accounted for. Bump stops prevent your fender, fender liner, tires, and other parts of your vehicle from colliding with each other. By extending your bump stops, you can ensure your vehicle stops flexing before this happens.

Our Rear Bump Stop Extensions are laser cut from Steel, making them durable and effective for protecting your rig. Our offset design ensures better alignment with your bump stop, providing full contact. The extension bolts directly onto the factory bump stop pad for easy installation.

Protects your rig from overextending, causing unnecessary damage
Made from durable Steel Tubing
Offset design for better alignment
Easy bolt-on installation

Straightforward Installation

With a simple bolt-on design and all necessary hardware included, installation is as simple as bolting onto your existing Bump Stop mount. For a more in-depth look at how to measure which extensions to get, you can check out our installation video on our YouTube channel.

Two-Stage Powder Coating

We subject our track bars to a two-stage powder coating process to improve durability and resist corrosion. The process includes a zinc primer base coat for rust protection, followed by a top coat in your choice of 10 available colors. This customization ensures your track bars match your vehicle’s aesthetics while offering extra protection.

Made in the USA

We proudly manufacture our Cruise Series at our facility in Orem, UT. We’re committed to supporting local suppliers and maintaining the highest quality standards by overseeing the entire manufacturing process.

Protect your Rig today with some Core 4×4 Front Bump Stop Extensions! This simple kit is an excellent choice for off-road enthusiasts and those with lifted vehicles aiming to protect their vehicles while hitting the trails. Make the upgrade today and experience peace of mind knowing your Rig is safe.

Series
Color Options	Charcoal, Orange, Yellow, Blue, Green, Light Green, Red, Purple, Black, White
Built With	Steel
Grease Fittings	N/A
Lift Range	3" - 4"
Fixed End	N/A
Thread Size
Thread Length

Make	Model	Year
Jeep	Wrangler JL/JLU	2018
Jeep	Wrangler JL/JLU	2019
Jeep	Wrangler JL/JLU	2020
Jeep	Wrangler JL/JLU	2021
Jeep	Wrangler JL/JLU	2022
Jeep	Wrangler JL/JLU	2023
Jeep	Wrangler JL/JLU	2024

FAQs

What are the differences between the series you offer?

Our product lines are designed to offer the absolute most value for your budget. Not every build is the same and we understand that. Our series differ mostly in the components used in the construction of the parts. Our Cruise and Town Series utilizes our high grade flex poly bushings at both ends of the arm, this has proven to be a smooth riding easy to maintain and replace bushing that we absolutely love. Our Camp and Trail Series utilizes 5/16″ wall DOM tubing and incorporates a flexible Johnny Joint at the adjusting end, this series has been our most popular series for all around use, great for daily drivers that want to tear up the trails as well. Our Crawl, Tow, and Track Series utilizes the same 5/16″ wall DOM tubing, but features Johnny Joints at both ends. This series gives you the absolute most out of your suspension. This is great for heavy towing/hauling and extreme off-roading. Also, if the component is straight in these series we will machine these left and right hand threaded for easy adjustment on the vehicle!

Do you offer complete lift kits for my vehicle?

We are constantly expanding our product lines to include complete kits, if you don’t see something on the site for your vehicle, reach out to our sales team and we can put something together for you.

What size wrench do I need from my jam nuts?

Our two main sizes of jam nuts require an1-1/2″ wrench or an 1-5/8″ wrench. Generally speaking the 1-5/8″ jam nuts are used on our lower control arms and the 1-1/2″ jam nuts on our upper control arms and track bars. There are some exceptions, but we do offer a crow’s foot that has both sizes.

What type of grease should I use?

Any non-synthetic moly based grease is safe on our products, avoid lithium greases and anything red as this can prematurely deteriorate the internal components of the Johnny Joints and bushings used on our parts.