Rusty’s Jeep JL Wrangler 3.75″ Advanced Lift Kit

Description

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.

KIT INCLUDES:

• Front 3.75″ Progressive Rate Coil Springs
• Rear 3.75″ 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 (not pictured)
• Front Upper and Lower Coil Spring Isolators (not pictured)

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.

Vehicle Fitment:

2018 Jeep Wrangler JL Lift Kit
2019 Jeep Wrangler JL Lift Kit
2020 Jeep Wrangler JL Lift Kit
2021 Jeep Wrangler JL
2022 Jeep Wrangler JL
2023 Jeep Wrangler JL
2024 Jeep Wrangler JL

About Rusty’s Off-Road

Rusty’s Off-Road is a leader in the 4X4 industry with our innovative line of Jeep specific products. Our in-house manufacturing and R & D keeps our products on the cutting edge. With our in house manufacturing we are able to control cost and sell retail at wholesale cost without sacrificing quality.

We have over 45 years of hands on experience in the off-road vehicle industry giving us the knowledge that few of our competitors have. Rusty’s has grown from a small business serving a regional market to a worldwide company. We have grown from a small 2 bay shop to an ever growing 65,000 square foot building. Yes, we too started off with torches and big hammers but today it’s high-tech measuring devises, precision machining centers, lasers, robots and a group of very dedicated employees to produce what we think are the very best in off road products.

We proudly back our products as ‘Trail Tested Tough.’ Each of our parts go through extensive prototype testing on the trails, allowing us to improve and strengthen our designs so we release only the highest quality products. Moab, Rubicon, Tellico, Wind Rock, and Jeep Jamboree events around the country have been regular stomping grounds for the Rusty’s Off Road Testing Crew over the years. Many parts have been run and tested in some of the most grueling off road races and rallies and with this abuse and testing you can be assured you will be getting the very best part built.

AROUND RUSTY’S OFF-ROAD

Growing from that 2 bay shop to this over 65,000 you think there is no way we will run out of room, well just as soon as we finished our latest construction, we quickly found out how quickly they will fill up. We have worked hard to keep things organized and invested hours in setting up the shipping dept to get parts shipped as fast as we can. 

SOME OF OUR SHOP EQUIPMENT

We’re proud to say that we use state-of-the-art equipment to manufacture all of our products right here in the USA. We are constantly investing in new and upgraded equipment that allows us to build better products more efficiently and with a greater degree of accuracy than ever before. Rusty’s has invested in multiple new laser machines, multiple CNC machines, a pair of CNC press breaks, welding robots and much more in order to keep pace with our sales growth and new products production. In-house manufacturing allows us to maintain a level of quality control that could never be matched when outsourcing production. Keep checking back for details on our new machines and the new products we’ll be offering!