Introducing the Rusty's JL Wrangler 3.75" Advanced Kit with HD Aluminum Steering System Package – it's the ultimate upgrade designed to transform your rig into a terrain-conquering machine. We've meticulously put together everything you need to properly lift your Jeep, beef up your steering, upgrade your shocks, and steering stabilizer, all in one complete package.

Think of it this way: this isn't just a collection of parts; it's the very same setup we trust on all the Jeeps in the Rusty's Offroad Shop. We've done the testing on toughest trails, and bundled it for your convenience, ensuring you get the performance and durability that will truly elevate your off-road adventures.

No more guessing, no more piecing things together. Just pure, unadulterated capability for your JL. Let's get your Jeep ready to conquer anything you throw at it!

SUSPENSION

Rusty’s 3.75" Advanced Kit for the New JL Wrangler was specifically developed to deliver the on-road performance people expect from the JL combined with the ultimate flex and control off the pavement. We weren't the first JL kit to be released, but we feel we have the best. Where others rushed their prototypes to market with little to no testing, we invested the time and effort to thoroughly test everything. The result is what we feel is the best kit in the industry, and there's no need to accept anything less.

In late 2017 we started on coil spring and shock designs as we got small bits of information. In late January 2018, we received our first Rubicon and a Sport, this is when we got ready to get to work. With the Jeep JL being totally redesigned from the departing JK Wrangler, everything was different. Ride quality, handling, and suspension travel were greatly increased on the new JL Wrangler, but it also meant that nothing that was learned from the JK applied to the JL. It was our job to design a coil spring that would ride as good if not better, not lose any of the outstanding road handling manners, increase the lift height for larger tires and add more suspension travel. We knew the challenge ahead of us wasn’t going to be quick, nor was it going to be easy. We also spent countless man hours on the computer designing with 3-D modeling. Now with over a year in design and real-world testing, we feel we have designed and engineered one of our best kits yet.

We developed a dual rate progressive front and rear coil spring. These springs were started from scratch and are a totally different design and spring rate from the departing JK. This extensive development takes time and is costly to design and build. Beware of many manufacturers and their one-size-fits-all mentality by using springs that are designed for other applications. It's certainly cheaper to borrow designs from previous platforms, and it gets you to market more quickly, but that doesn't make it right. Rusty’s JL coils springs were developed corner-specific, meaning that every spring is different on each corner of the vehicle, just as built from the factory. Corner-specific springs mean you can be assured the ride height of the vehicle will be correct, with no cheesy offset spacers needed to keep the vehicle level or reduce spring bowing. The Rusty’s 3.75" kit will give you the clearance on a Rubicon JL to fully flex it with 37-inch tires off road and not have any fender rub, no inner fender rub. You can also easily run a 40-inch tire but bump stops are recommended for vehicles going off road.

STEERING

Rusty's Aluminum HD Steering System for the JL Wrangler and JT Gladiator works great as a stand-alone replacement system or for a built rig that is ready to conquer the roughest of trails and creates a steering system that is nearly indestructible!

Rusty's JL/JT Steering System starts with a massive 1.825 diameter solid 7075 T6 aluminum for both the tie rod and the drag link. Sold as a complete unit that includes the complete tie rod and drag link assemblies with Rusty's equally massive 1.25 threaded zinc plated forged adjustable tie rod ends, massive jam nuts for the tie rod ends and also comes with serrated washers to insure the jam nuts wont come loose. A steering stabilizer bracket with the option for a standard stabilizer or a pass through style stabilizer is also included. Rusty's kit's come complete, no adding more parts.  

The factory steering linkage is complicated and features compound angles that don't respond well to lifts over any heights and the system has also proven to have a few weak points. The Rusty's Steering for JL Wrangler and JT Gladiator models is beefier than anything on the market and addresses the factory shortcomings while adding significant strength all at the same time! When looking to upgrade or simply replace your factory steering components you can't go wrong with this system. All tie rod ends and components are available individually as well so replacement in the future you are not stuck having to purchase an entire tie rod or drag link again. 

Please Note: You must have a 17 inch or larger wheel. The wheel must have 4.75 to 5 inches of back spacing. Back spacing is the amount of space between the back side of the wheel where the lug studs go through to the back of the wheel. The amount of clearance may still vary do to the construction of the wheel, bead style, thickness of the wheel and so on. Wheel spacers are needed on stock wheels and possibly needed on some aftermarket wheels. Rusty's offers compatible wheel spacers from a 1/4 inch to 1.5 inches thick. If not sure on your back spacing it would be best to measure it and also compare the thickness of the wheel and bead to a factory Rubicon style wheel for the best fit.

KIT INCLUDES:

• Rusty's Aluminum HD Steering System
• Steering Stabilizer
• Front Progressive Rate Coil Springs
• Rear Progressive Rate Coil Springs
• Adjustable Front Upper Control Arms with Forged Flex Ends
• Your choice of Adjustable Front Lower Control Arms with Forged Flex Ends or Forged Rubber Ends
• Your choice of Adjustable Rear Upper Control Arms with Forged Flex Ends or Forged Rubber Ends
• Your choice of Adjustable Rear Lower Control Arms with Forged Flex Ends or Forged Rubber Ends
• Adjustable Front Track Bar
• Adjustable Rear Track Bar
• Front Track Bar Frame Mount Brace
• Front and Rear Extended Sway Bar Links
• Front Brake Line Extension Brackets
• Front Upper and Lower Coil Spring Isolators
• Front Lower Coil Spring Retainers 

KEY FEATURES:

• Progressive Dual-Rate Coil Springs Front and Rear
• Coils specifically developed from the JL, not borrowed from previous platform designs
• Maintains factory ride quality while making room for a larger tire and wheel package
• Adjustable upper and lower control arms with Forged Flex Joints front and rear for the ultimate in adjustability and flex
• Extended front and rear sway bar links maintain factory sway bar functionality
• Available shock absorbers are tuned to work with spring rate

* There is much talk about a driveshaft being needed for this lift, we have ran many JL's with stock shafts and have had no wear problems, a lot of this depends on how you use the vehicle. Just as it would stock, if you wheel a lot and use the vehicle in harder off road trails and situations, it will wear the driveshaft faster and then you will need to replace and we suggest a aftermarket HD shaft. But is it necessary for you to replace the driveshafts to install this kit, no not at all. Rusty's also offers a complete line of aftermarket HD driveshafts when that time comes.