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Description
Synergy 8823-4000 4" Stage 3 Lift Kit Suspension SystemElevate your 2018 2023 Jeep Wrangler JL (2 Door) with the Synergy 8823 4000 4" Stage 3 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 Jeep
Elevate your 2018-2023 Jeep Wrangler JL (2 Door) with the Synergy 8823-4000 4" Stage 3 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 Jeep and include all necessary components for the lift height and performance advertised. Coil springs and shocks are two of the largest determining factors in ride quality and a mismatched system will never perform to its potential.
The Jeep JL Stage 3 Suspension System is a coil spring 4" lift designed around 37" tires for all models and 40" tires with Rubicon or aftermarket high clearance fenders. This system further builds off the Synergy Stage 2 System by adding a heavy-duty drag link and front track bar relocation bracket to correct the steering geometry, as well as their adjustable rear track bar and new stainless brake lines to deliver a complete and balanced suspension package with all the limits for maximum wheel travel properly addressed. This system is the apex of Synergy's JL Wrangler offerings and capable of extreme performance.
The Jeep JL Stage 3 Suspension System is a coil spring 4" lift designed around 37" tires for all models and 40" tires with Rubicon or aftermarket high clearance fenders. This system further builds off the Synergy Stage 2 System by adding a heavy-duty drag link and front track bar relocation bracket to correct the steering geometry, as well as their adjustable rear track bar and new stainless brake lines to deliver a complete and balanced suspension package with all the limits for maximum wheel travel properly addressed. This system is the apex of Synergy's JL Wrangler offerings and capable of extreme performance.
Features:
- Multi-Rate, Progressively Wound Coil Springs Increase Lift Height 4" Over Stock
- Longest In Class Free Length Prevents Coil Springs From Coming Unseated At Full Articulation
- All Adjustable Control Arms Are Included To Correct Caster, Pinion Angle, And Center The Axles
- 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
- Coil Springs Are Guaranteed To Resist Bowing And Have A Lifetime Guarantee Against Sagging/Breakage
- 100 Percent Bolt On Components Assure An Easy, Trouble Free Installation With The Use Of Basic Hand Tools
- 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
- Control Arms Feature Our Maintenance Free Dual Durometer Bushings (DDB) Focusing On Performance, Flex, Longevity, And Ride Quality
- Industry First Closed And Ground Lower Ends Of The Front Coil Springs Ensure Perfect Fitment With The Included Front Lower Coil Spring Isolators
- Adjustable Front And Rear Track Bars Allow Centering Of The Both Axles, Reduce Lateral Shift In The Front End, And Eliminate Bind On Articulation
- Parking Brake Cable Bracket Secures The Parking Brake Cables When They Are Relocated Under The Rear Crossmember So They Don’t Impede Suspension Travel
- 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
- Front Steering Correction Kit Combines Our Proven Heavy Duty Drag Link And Front Track Bar Bracket To Raise The Front Roll Center, And Correct The Steering Geometry
- Front Sway Bar Links With Quick Disconnects Allow Easy Disconnection Of The Front Sway Bar For Maximum Articulation Of The Front Suspension When Used Off Road
- Double Adjuster Assemblies Are Used For Easy Length Adjustment On The Vehicle And Pinch Bolts Are Used To Secure The Double Adjusters So There's No Fighting Jam Nuts
- Rear Track Bar Relocation Bracket Raises The Rear Roll Center To Reduce
Body Roll And Centers The Rear Axle While Preventing Drive Shaft
Interference With The Gas Tank
Benefits:
- No Maintenance Components
- Compatible With OEM Wheels
- Complete Bolt-On System For Easy Install
- Coil Spring Suspension System To Easily Fit Larger Tires
- Includes All Components Necessary To Get You On The Trail
- Greatly Improves Wheel Travel And Articulation Over Stock And Spacer Lifts
- Best In Class Ride Quality And Performance When Paired With Coil Spring Matched Synergy Tuned Shocks
- Corrects Suspension Geometry To Center Front And Rear Axles And Fine Tune Alignment And Pinion Angles
- Includes Front Sway Bar Quick Disconnects For Easy Disconnection Of The Front Sway Bar For Off Road Use
Improvements from the Synergy MFG Stage 2 System:
Adds Front Steering Correction Kit To Raise Roll Center And Improve Steering GeometryAdds Adjustable Rear Track Bar For Increased Articulation And To Re-Center Axle
Includes:
(1) 8863-30 Front Lift Coil Springs, 4-Inch Lift
(1) 8864-30 Rear Lift Coil Springs, 4-Inch Lift
(1) 8057-10 Snap-Lock Bump Stop Spacer System
(1) 8858-40 Rear Bump Stop Extension, 4.0 Tall
(1) 8859-11 Front Sway Bar Links
(1) 8861-11 Rear Sway Bar Links
(1) 8855-11 Front Track Bar Relocation Bracket
(1) 8800-01 Heavy-Duty Drag Link
(1) 8851-01 Adjustable Front Lower Control Arms
(1) 8853-01 Adjustable Front Upper Control Arms
(1) 8052 Adjustable Rear Lower Control Arms
(1) 8854-01 Rear Upper Adjustable Control Arms
(1) 8875-01 HD Adjustable Front Track Bar
(1) 8856-01 Rear Track Bar Relocation Bracket
(1) 8862-01 HD Adjustable Rear Track Bar
(1) 8818-01 Parking Brake Cable Relocation Bracket
Synergy 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.
(1) 8864-30 Rear Lift Coil Springs, 4-Inch Lift
(1) 8057-10 Snap-Lock Bump Stop Spacer System
(1) 8858-40 Rear Bump Stop Extension, 4.0 Tall
(1) 8859-11 Front Sway Bar Links
(1) 8861-11 Rear Sway Bar Links
(1) 8855-11 Front Track Bar Relocation Bracket
(1) 8800-01 Heavy-Duty Drag Link
(1) 8851-01 Adjustable Front Lower Control Arms
(1) 8853-01 Adjustable Front Upper Control Arms
(1) 8052 Adjustable Rear Lower Control Arms
(1) 8854-01 Rear Upper Adjustable Control Arms
(1) 8875-01 HD Adjustable Front Track Bar
(1) 8856-01 Rear Track Bar Relocation Bracket
(1) 8862-01 HD Adjustable Rear Track Bar
(1) 8818-01 Parking Brake Cable Relocation Bracket
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:
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).Synergy 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
4.7 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Great fun for retrievers
Size: Medium, Style: Medium (4 Pack)
Great durable balls. Use these with or without the thrower. Lab puppy loves to play fetch and these are easy to spot in the yard. Our neighbor has 2 pit bulls who also plays with them. Will buy them again if need be.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Dogs love them
Size: Medium, Style: Medium (4 Pack)
These balls last! Dogs love them!
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Best toy, the end
Style: Sport, Size: 12in, Style: Sport, Size: 12in
Combined with the Max Glow ball, this is the best dog toy available on modern planet Earth.
I have a burly 92lb. pit bull mix with highly developed prey drive, and she will chase the glow ball for hours if I let her.
The tiny sport launcher (Sport 12M) is the best, because you can still throw the ball really far, but you can also slam the ball down a few feet away from yourself so it bounces up in the air and your dog has to jump to catch it, or you can throw it up really high so it bounces 15' away or so and your dog can jump to catch it. We sometimes have to play fetch in a pretty small area, so it's nice to have the small launcher for these games. The larger launchers aren't as fun in small areas. You can play the same games but it's trickier to throw the ball correctly.
Also, the small launcher is a lot easier to carry. The small launcher fits in my dog-walk-stuff backpack (with the ball in the launcher so I don't have to dig for it later), but the big ones don't easily. The launcher also has a hole in the end so you can hang it from your bag or whatever with a carabiner. The big ones are too long for that in most cases, and swing back and forth.
Also-also my dog loves to ask for the launcher, then when I give it to her she plays keep-away and it's adorable. The big launcher I have is harder for her to balance in her mouth, so she just lays down and chews on it until it gets taken away. She's chewed on all of the four Chuck Its we've owned, but she's only broken one (a big one), but that's because she got ahold of it when no one was home. The little one in my bag is totally chewed up but still works great. I think they're sturdier than the big ones. Except for the launcher she chewed into pieces, which was our fault, the only reason we've had to replace anything was because we lost it. Usually we keep the launcher and ball in the backpack so she can't get to them and so they don't get lost, so we rarely have to replace them. There is just not a better value in toys, and the startup price is really low.
Once again I really recommend the glow ball! It doesn't get soggy no matter how wet the grass or the dog mouth is. It is fun to chase because it is slippery and it collapses when it's squeezed, so it pops out of the dog's mouth and flies away if they bite it at the wrong angle; it's really bouncy, and stays bouncy because it can't be popped; it whistles so you can usually hear it even if you can't see it; and it really glows enough for nighttime catch, even if you only have your cellphone flashlight to charge it up!
UPDATE:
I should have said, we have the 12M launcher, which means the handle is 12 inches long and it uses a medium-sized ball. The medium ball is 2.5 inches in diameter, so the launcher will fit regular tennis balls, too! But my dog won't play with regular tennis balls anymore because they aren't anywhere near as fun as the glow balls, and I think she doesn't like having gross sloshy muddy tennis balls in her mouth.
I lost my short launcher awhile back and could only get a long one locally to replace it, which reminded me that you have to lean over a lot further to use the short launcher. So if you have trouble leaning over to the point that your hand is a foot above the ground, this may be hard for you to use.
I wish Amazon would let us choose colors, because my old one was green, and the big one is orange, both of which are bright enough to see in the grass from far away, even at night.
Still, best toy!
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Reviewed in the United States on May 19, 2017
★★★★★ 5
Highly recommend.
Style: Sport, Size: 12in
Love this. Dog sitting for a dog that loves to chase balls but my shoulder doesn’t like throwing them. Got this yesterday and it’s perfect. Real arm/shoulder saver.
Seems sturdy and I was concerned that a standard tennis ball would not work. We tend to lose balls when walking because this lab insists on carrying the ball in its mouth. They work.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
These are awesome and I couldn't play ball with my Dobermans without it!
Style: Sport, Size: 12in
I LOVE Chuckit ball launchers. We've been using for a around 17 years and we've only had to replace one. We have 2 active, energetic Dobermans and I throw like a girl and there is now way I can throw a ball very far. With the Chuckit, I can throw more than 80 feet! My dogs need a lot of exercise and using this ball thrower allows me to make that happen. Bonus is I dont have to pick up a snobbery ball :)
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Reviewed in the United States on April 13, 2026