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Description
Synergy 8840-1000 1" Starter Lift Kit Suspension SystemUpgrade your 2018 2023 Jeep Wrangler JL (4 Door) with a Synergy 8840 1000 1" Starter Lift Kit Suspension System from GAP. Synergy MFG Suspension Systems use a synergistic approach, meaning the combined effect of the components is greater than the sum of the individual parts. The overall performance of the system is the most important factor when designing components to work together. Synergy MFG Suspension Systems are complete systems for your vehicle
Upgrade your 2018-2023 Jeep Wrangler JL (4 Door) with a Synergy 8840-1000 1" Starter Lift Kit Suspension System from GAP. Synergy MFG Suspension Systems use a synergistic approach, meaning the combined effect of the components is greater than the sum of the individual parts. The overall performance of the system is the most important factor when designing components to work together. Synergy MFG Suspension Systems are complete systems for your vehicle and include all necessary components for the lift height and performance advertised. All of these systems have shock solutions available, whether it be shock relocation brackets to continue using the stock shocks in our Starter System or one of our Synergy MFG tuned shock packages aimed at affordability or performance. Coil springs and shocks are two of the largest determining factors in ride quality and a mismatched system will never perform to its potential. All Synergy MFG tuned shocks are matched to the coil springs and application to provide the best ride and performance possible.
The Jeep JL / JLU Starter System is a coil spring 2" lift designed around 37" tires for Rubicon models and 35" tires for Non-Rubicon models (See fender and bump stop spacing recommendations below). This system is designed to be the most capable performance coil spring lift on a budget, with room to upgrade as funds allow. For more complete 2-inch lift systems, see the Stage 1 or Stage 2 systems.
Features:
- Multi-Rate, Progressively Wound Coil Springs Increase Lift Height To 2” Over Stock
- Longest In Class Free Length Prevents Coil Springs From Coming Unseated At Full Articulation
- Front And Rear Coil Springs Are All New And Have Been Designed Specifically For The JL Platform
- Bump Stop Spacing Is Adjustable From 2-4” In 1” Increments Without Having To Remove Any Hardware
- 100% Bolt On Components Assure An Easy, Trouble Free Installation With The Use Of Basic Hand Tools
- Coil Springs Are Guaranteed To Resist Bowing And Have A Lifetime Guarantee Against Sagging/Breakage
- Coil Spring Block Height Has Been Designed Around Optimal Bump Stop Spacing For The Lift Height And Tire Size
- Coil Springs Are Unique Lengths For Each Corner Of The Vehicle To Compensate For Weight Distribution And Prevent Leaning
- Front And Rear Adjustable Bump Stop Spacer Kits Are Included To Provide The Necessary Clearance Required For Larger Tires
- Suspension Components Feature An Abrasion-Resistant Powder Coat Finish For Maximum Durability And Corrosion Resistance
- Industry
First Closed And Ground Lower Ends Of The Front Coil Springs Ensure
Perfect Fitment With The Included Front Lower Coil Spring Isolators
- Front Sway Bar Link Relocation Brackets Paired With The Stock Rear Sway Bar Links Relocated To The Front Allows Full Articulation Out Of The Front Suspension
- Front And Rear Lower Shock Relocation Brackets Allow
The Stock Shocks To Be Reused Making This A True Budget System As
Funds Allow, Shocks Can Be Upgraded At A Later Date To Increase
Performance
- Stock Rear Sway Bar Links Are Relocated To The Front And New Rear Sway Bar Links And Drop Brackets Are Added To The Rear To Allow Full Articulation Of The Rear Suspension And Maintain Compatibility With Stock Wheels
Benefits:
- Reuses Stock Shocks
- Compatible With OEM Wheels
- Lifetime Warranty On All Hard Parts
- Complete Bolt-On System For Easy Install
- Fully Upgradeable To Higher Level Systems
- Improved Off Road And On Road Performance
- No Maintenance Required For All Included Components
- Includes All Components Necessary To Get You On The Trail
- Budget Coil Spring Suspension System To Easily Fit Larger Tires
- Will Fit Up To A 35” Tire On The Non-Rubicon, And 37” Tire On The Rubicon
Includes:
(1) 8863-10 Front Coil Springs (JL / JLU / JT), Pair(1) 8864-10 Rear Coil Springs (JL / JLU), Pair
(1) 8886-02 Rear Sway Bar Drop Brackets
(1) 8855-02 Front Sway Bar Link Relocation Brackets
Wheel and Tire Fitment:
Recommended tire size is limited by fender clearance. With higher clearance fenders or trimmed fenders, larger tires may be fitted. Bump stop spacing should be matched to the collapsed length of the shocks. Mismatched bump stop spacing and shocks will limit the available travel from the system.Notes:
In Order to use factory shocks you need to add Part Number 8819 to the KitIf using longer travel aftermarket Shocks you have to do one of the following options:-
1) Move OEM rear sway bar links to the front and add 8860-11 to the rear
2) Keep OEM rear sway bar links and add sway bar disconnects to the front
Synergy MFG coil springs lift the vehicle the advertised height over stock based on a fully loaded JL Rubicon. Other JL models will see more lift over stock. These coil springs do not lift taller than advertised. The stock rake based off the Rubicon model is kept to retain its load carrying capacity. If you prefer the vehicle to sit level when unloaded, Synergy recommends adding a small coil spacer to the front (up to 3/4-inch without affecting up travel or causing coil bind, 8017-075).
For off road use, the front sway bar can be disconnected on Rubicon vehicles via the built in electronic disconnect system. On non-Rubicon vehicles, Synergy recommends the addition of our front sway bar disconnect kit, 8859-01.
Synergy MFG's Starter System is designed to be used with stock length shocks. If upgrading to longer shocks, the suspension will also need to be upgraded to at least Stage 1.
Synergy MFG's Starter System is designed to be used with stock length shocks. If upgrading to longer shocks, the suspension will also need to be upgraded to at least Stage 1.
Synergy MFG is not responsible for maintaining finish of products. Environmental factors will affect rate of corrosion and wear for items advertised to be corrosion resistant. Synergy recommends using protective coatings for all items that will see extended outdoor and off road use. Synergy has had great experience with the Fluid Film product and recommend it and similar products for any items susceptible to damage from corrosion. It is great for keeping double adjuster assemblies working like new and protecting shock bodies from the elements.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Super Comfortable!
Size: Queen (U.S. Standard)
Super comfortable, I would highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 4
Happy with product
Size: Queen (U.S. Standard)
Good packaging, fluffs up nicely, no neck pain after use and no allergies !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 1
Very thin & no support
Size: Queen (U.S. Standard)
I was thinking these pillows were going to be kind of firm with the way they are described and the picture but they are very thin and when I laid down on it, it was like whatever is in the pillow just instantly moved to each side of my head. Definitely not for me and my neck issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 5
Back sleeper here
Size: Standard
So since they were listed as down alternative, I was interested to see if they had that artificially puffy feel to them. They do get puffed up really well after a day. And the fabric is cool and comfortable. I do feel like these have good quality stuffing and the cover feels nice. I'm a back sleeper and it's just the right amount of bulk under my neck. I usually bunch the pillow up a little bit there so there's a little more pressure under my neck but with these it just felt good to lay on it without having to bunch it up in any special way. So I would definitely recommend them. So far I'm really liking having these pillows.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Nice and Fluffy
Size: Standard
These "down alternative" pillows have been a winner for me. Came two to a package and once they have a couple of days our of the vacuum packaging are nice and fluffy with no noticable odor. Just the right amount of "spring" to them for my taste. Also don't overheat my face/neck as traditional down pillows sometimes have.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
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