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Description
Synergy 8853-4000 4" Stage 3 Lift Kit Suspension SystemGet the Synergy 8853 4000 4" Stage 3 Lift Kit Suspension System from GAP and raise your 2020 2023 Jeep Gladiator JT. 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. The Jeep JT Stage 3 Suspension System is a coil spring 4" lift designed
Get the Synergy 8853-4000 4" Stage 3 Lift Kit Suspension System from GAP and raise your 2020-2023 Jeep Gladiator JT. 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.
The Jeep JT Stage 3 Suspension System is a coil spring 4" lift designed around 40" tires for Rubicon models and 37" tires for non-Rubicon models. This system is designed to be the most capable performance coil spring lift in its price category. Kit features 100 percent bolt-on components to ensure an easy, trouble free installation with the use of basic hand tools.
Features:
- Multi-Rate, Progressively Wound Coil Springs Increase Lift Height To 4" Over Stock
- The Front And Rear Coil Springs Have Been Designed Specifically For The JT Platform
- Longest In Class Free Length Prevents Coil Springs From Coming Unseated At Full Articulation
- 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
- Front And Rear Track Bar Relocation Brackets For Increased Strength And Help Retain Factory Ride Quality
- Front Bump Stop Spacing Is Adjustable From 2-4" In 1" Increments Without Having To Remove Any Hardware
- Front And Rear Control Arms Are Adjustable To Allow For Caster Correction And Re-Centering Of The Front Axle
- Coil Spring Block Height Has Been Designed Around Optimal Bump Stop Spacing For The Lift Height And Tire Size
- Front And Rear Bump Stop Spacer Kits Are Included To Provide The Necessary Clearance Required For Larger Tires
- Rear Brake Lines Allow The Suspension To Fully Articulate Without Putting Unnecessary Stress On The Lines And Fittings
- Coil Springs Are Unique Lengths For Each Corner Of The Vehicle To Compensate For Weight Distribution And Prevent Leaning
- Industry First "Closed And Ground" Front Coil Springs Ensure Perfect Fitment With The Included Front Lower Coil Spring Isolators
- Suspension Components Feature A Two-Stage, Abrasion-Resistant Powder Coat Finish For Maximum Durability And Corrosion Resistance
- Arms Are Made Of 1 75" X 188" Wall 1026 DOM And Feature Maintenance Free Dual Durometer Bushings Are Used At Both Ends For Uncompromised Articulation
- The 4" Kit Comes With Front And Rear Adjustable Track Bars Center The Axles On The Jeep, Maintains Factory Geometry And Improves Lateral Stiffness Compared To OE Track Bars
- Front And Rear Sway Bar Link Relocation Brackets Maintain Factory Sway Bar Geometry To Allow Full Articulation Of The Rear Suspension And Maintain Compatibility With Stock Wheels
Benefits:
- 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
- Coil Spring Suspension System To Easily Fit Larger Tires
- Includes All Components Necessary To Get You On The Trail
8853-4000 - 4" Stage 3 Lift Kit Suspension System Includes:
(1) 8863-40 4 " Front Coil Springs, Pair(1) 8865-40 4" Rear Coil Springs, Pair
(1) 8057-10 Snap-Lock Bump Stop Spacers
(1) 8858-40 Rear Bump Stop Extension, 4" Tall
(1) 8859-11 Front Sway Bar Links
(1) 8861-11 Rear Sway Bar Links
(1) 8808-01 Rear Sway Bar Relocation Brackets
(1) 8800-01 JL / JT Adjustable Drag Link
(1) 8875-01 Front Adjustable Track Bar
(1) 8881-01 Rear Adjustable Track Bar
(1) 8855-11 Front Track Bar Relocation Bracket
(1) 8877-01 Rear Track Bar Relocation Bracket
(1) 8851-01 Front Adjustable Lower Control Arms
(1) 8853-01 Front Adjustable Upper Control Arms
(1) 8871-01 Rear Adjustable Lower Control Arms
(1) 8870-01 Rear Adjustable Upper Control Arms
(1) 8866-05 Rear Extended Brake Lines
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:
Recommended addition of (8859-12) - Synergy Jeep JL / JLU / JT Sway Bar Link Disconnect Brackets on both Rubicon and non-Rubicon Models to maximize front wheel travel.Synergy MFG coil springs lift the vehicle the advertised height over stock based on a fully loaded JT Rubicon. Other JT models (Non-Rubicon/Mojave) 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-inches without affecting up travel or causing coil bind, 8017-075).
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.
Recommended aftermarket shock fitment if not running Synergy Tuned Shocks.
1. Rear shock mounts in the highest position (brackets closest to the body of the Jeep).
2. May not be compatible with stock wheel backspacing.
1. Rear shock mounts in the highest position (brackets closest to the body of the Jeep).
2. May not be compatible with stock wheel backspacing.
Synergy Anti-seize (4118) is recommended on all adjustable steering and suspension components for increased longevity.
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
4.5 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
OMG I finally found the one
Color: White, Size: Standard
I use to have a pillow that I took it everywhere. It finally was gone I couldn’t find one that I had. So my quest for the perfect pillow was 17 different pillows. I finally found the one!!! This pillow is soft but is sturdy. My head lays on the pillow and doesn’t fall to the bed. My neck isn’t tilted in an awkward position. The coolness of the pillow is amazing. This pillow is everything I was looking for. The price is 100% worth it.
Edit ok I still love the pillow but you have to flip it because all the stuffing moves to the other side. The pillow still has enough that it was still comfortable. I wish that the stuffing would stay in the same pot.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
Sleeping on a soft cool cloud..
Color: White, Size: King
This pillow is nice and soft it holds the coldness for a long time and I am a big man.. As far as value I think it is worth it for the quality that goes into making it..
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Reviewed in the United States on February 10, 2026
★★★★★ 4
Nice Pillow
Color: White, Size: King
I waited a few weeks before writing this review. It’s very difficult to find Info on this pillow but here’s my take on it.
Height:
It’s a nice height on the pillow. It has a 2” gusset which upon my research is a way to keep the inside foam and down at least 2” high.
Types of sleeping:
I find this pillow to be comfortable in all sleep positions. I do find that because it’s not full foam that you don’t get that full compression feeling so back sleep is not as comfortable to me as other pillows I’ve used but still very comfortable
Back:
Has enough height that my neck is supported. It’s not full foam so you will have to adjust your head position so it fits perfectly into the curve of the pillow for best support.
Side:
Thick enough that the compatibility with my mattress sink allows my body to be comfortably aligned. I have a medium hybrid tempurpedic luxe breeze.
Stomach:
Just barely thick enough to be comfortable. I sleep somewhat weird and like my arm to go under the pillow. This gives me the correct height for stomach sleeping if I put my head on the bottom part of the pillow. This also allows me to breathe lol.
Cooling
This pillow has awesome cooling. Even when I wake up the pillow is still ice cold. Never had this feeling before and I’m a hot sleeper so i really like this. Granted I do set my house temperature to like 73 to sleep. The sensor is right next to my bed so it’s a true 73.
Material
This has foam outer layers and a fiber fill. It really does feel unique and it’s comfy. It’s a decently heavy pillow too in king so that gives confidence there is good quality foam and materials in it.
One thing to know, the cover is “slippery” and it took some getting used to, even though I use a pillow case I can feel it slides in the case more than other pillows. I think it’s because the cover is very thing to promote airflow and heat transfer.
I wish it was adjustable for the price.
Price
I like the pillow, and got mine on sale. But I do think it’s a bit overpriced for what it is. Evidently the sale price I got wasn’t a good price and it’s gone as much as 20% off. Oh well.
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Reviewed in the United States on August 18, 2023
★★★★★ 3
Great Cooling, But Lacking Support
Color: White, Size: Standard
I have to agree with some of the other reviews—this pillow just doesn't offer enough support. It initially feels plush and inviting, but after a minute or so, your head sinks too far and ends up pressing against the underlying latex, which has a rubbery, somewhat uncomfortable feel. It might be an excellent fit for those with smaller frames, but for me, it fell short in terms of proper neck and head support.
On the plus side, the cooling aspect is impressive. It's cool to the touch and noticeably more breathable than many pillows I've tried. I've seen some complaints about it not staying cool all night, but honestly, no pillow really does. Casper's claim of "12 hours of cooling" seems like marketing optimism—your body heat will eventually warm up any pillow, no matter how well-designed. That’s just basic thermodynamics.
All in all, it's a well-made pillow with excellent cooling performance. If you have a smaller frame, this could be a great choice. Unfortunately, it just didn’t work for my needs.
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Reviewed in the United States on June 7, 2025
★★★★★ 1
Is this a joke?
Color: White, Size: King
I don't usually write reviews, but I have to for this pillow. The pillow measures 16" x 32", not 18" x 34" as stated in the description. That's not really a big deal, but they should have the correct size in the description. The problem with this pillow is the total lack of support. My head falls through this pillow within a half hour of laying my head on it. This causes me neck pain and I have to switch to my old pillow in the middle of the night. I'm a bigger dude that's 6'3" and I only sleep on my side. I thought this pillow would be great based on the other reviews that stated it works for side sleepers. I would describe this pillow as a greatly overpriced marshmallow. The pillow does have some decent cooling properties, but they don't last all night as described. This pillow would probably work great for someone who sleeps on their stomach. I wouldn't recommend this pillow to a bigger dude that's a side sleeper.
Note: I did find a great Casper pillow that works for me. I bought the Casper Sleep Essential Cooling Foam pillow on Amazon. It's the one that's all foam with a phase change layer to help with cooling. The pillow has great support and it doesn't cause me any neck pain. The best part is the price, it cost less than half the price of the Hybrid Snow Pillow. I hope this review helps someone.
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Reviewed in the United States on July 28, 2024