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Description
Synergy 8863-40 4"-5" Front Lift Coil SpringsReplace the coil springs on your 2018 2023 Jeep Wrangler JL or 2020 2023 Jeep Gladiator JT with the Synergy 8863 40 4" 5" Front Lift Coil Springs from GAP. Synergy MFG has designed these springs from a clean sheet for the new Wrangler platform. All springs are multi rate and have been designed to make a great platform even better. These springs are unique to the JL and not shared with the JK or other vehicles. Like OEM, Synergy coil springs are unique
Replace the coil springs on your 2018-2023 Jeep Wrangler JL or 2020-2023 Jeep Gladiator JT with the Synergy 8863-40 4"-5" Front Lift Coil Springs from GAP. Synergy MFG has designed these springs from a clean sheet for the new Wrangler platform. All springs are multi-rate and have been designed to make a great platform even better. These springs are unique to the JL and not shared with the JK or other vehicles. Like OEM, Synergy coil springs are unique lengths to account for load differences on each corner of the vehicle. There are right and left specific springs front and rear to guarantee the vehicle will sit level. Springs are designed to be used with up to .75 inch of front spring spacer without requiring additional bump stop spacing. The multi-rate design has a softer initial rate which prevents the spring from coming loose in the coil tower, even with long travel shocks. The ride rate is slightly stiffer than the OEM springs to account for additional weight from bumpers, winches, skid plates and gear. Springs are proudly manufactured in the United States of the highest quality steel. Springs are designed to be able to set solid (fully collapse) without overstressing the material and are pre-set from the factory meaning the springs will never sag or set.
Features:
- Multi-Rate Coil Springs Allow For Longer Spring Lengths And Increased Travel
- Spring Rates Are Only 5-10 Percent Stiffer Than Stock For Superior Ride Quality
- Coil Spring Block Heights Are Designed Around Common Bump Stop Spacings To Optimize Wheel Travel
- Ground And Closed Lower Spring Ends To Prevent Bowing
- Includes Front Lower Coil Spring Isolators To Match The Ground And Closed Spring Ends
- Unique Spring Lengths For Each Corner Of The Vehicle So It Will Sit Level Side To Side
- Frequency-Balanced And Tuned Spring Rates To Maximize Suspension Performance On And Off-Road
- Abrasion-Resistant Black Powder Coat Finish For Maximum Durability And Corrosion Resistance
Note: 4-Door Lift Height: 4"
2-Door Lift Height: 5"
Coil springs require proper bump stop spacing with Synergy 8057-10 Bump Stop Spacers.
Lift heights are based off fully loaded Rubicon models. Other models will see more lift.
Coil springs retain the stock rake of the vehicle.
Up to .75 inch of front coil spring spacer can be added to level the vehicle using 8017-075 front coil spring spacers.
Min bump stop spacing listed is the minimum amount of bump stop spacing required to prevent the springs from going into coil bind. Do not use less bump stop spacing.
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
4.1 ★★★★★
Based on 1873 reviews
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Product Reviews
★★★★★ 1
Cracked Tooth
Update: While I originally loved this product and so did my dogs, I feel the need to update this review. The Dura Chew Nylabones are incredibly hard, which is what makes them last so long. However, one of our dogs did crack a tooth recently from chewing on a Dura Chew. Since then, we have been very hesitant to allow any of our dogs to chew on these as other reviews also state that dogs have cracked teeth. We have since thrown out all of the Dura Chews that we had. We are still using the regular Nylabone products (when they aren't made in China), but once those are gone we will not buy any additional products from Nylabone. We have been buying Whimzees for our dogs for the last two years or so and they are a healthy edible alternative. They do not last as long because they are edible, but I have the peace of mind in knowing that my dogs are safe with them. Another healthy alternative would be antlers, which we also give to our dogs and they usually last a long time.
Original review: Another great Nylabone product. I love that dogs can chew on Nylabone products and they can't pull off pieces like products from other brands (Hartz for example). The Dura Chews are especially great for our hard chewers and they last forever! I love all of the dimples on their chews too, they're great for keeping our dogs' teeth clean. The vet is always impressed when they check their teeth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2015
★★★★★ 5
good
Color: Seaweed & Timothy Hay, CornSilk, CornLeaf, Number of Items: 3
really good my cat love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 3
Puppy friendly
Color: Reed, Seaweed & Corn Husk, Seaweed & Corn Silk, Number of Items: 3
This is not designed for dogs who are chewers. I gave this to my adult dog thinking she could play with it and be entertained for a little while. She had it ripped up and spread around the room in about 10 seconds. I would maybe recommend this for puppies to have something softer and gentle on their little teeth and gums. It also makes a bot of a mess once it starts coming apart so I suggest using outside or where it can be contained. Little high of a price point for the value I got out of it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
natural material toys
Color: All, Number of Items: 12, Color: All, Number of Items: 12
My dog was immediately interested in these. He loves carrying them around and chewing on them. I also like that they’re made from natural materials.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 4
Start with 6 pack assortment to let the dogs choose their favorite. They are fragile and messy.
Color: Seaweed & Timothy Hay, CornSilk, CornLeaf, Number of Items: 3, Color: Seaweed & Timothy Hay, CornSilk, CornLeaf, Number of Items: 3
They are fragile and messy. I only give them to the husky for about 5 minutes as a calming reward. His favorite is seaweed and Timothy hay. Why because we feed Timothy hay on the farm. His second choice was corn leaf. He looked at me like I was crazy when he mouthed the corn silk ball.
In the future I will just get the seaweed hay balls. The sensory taste and smell calms him down.
The old lab is easier on these balls. More licking and sucking than hard chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
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