SKU: 13635173374

Synergy 8864-30 3"-4" Rear Lift Coil Springs

Sale price$139.50 Regular price$155.00
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

Synergy 8864-30 3"-4" Rear Lift Coil SpringsGrab the Synergy 8864 30 3" 4" Rear Lift Coil Springs from GAP for your 2018 2023 Jeep Wrangler JL. 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, our coil springs are unique lengths to account for load differences on each corner of

Grab the Synergy 8864-30 3"-4" Rear Lift Coil Springs from GAP for your 2018-2023 Jeep Wrangler JL. 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, our 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. The multi-rate design has a soft 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
  • 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
  • Sold In Pairs

Note: 4-Door Lift Height: 3"
2-Door Lift Height: 4"
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:
  1. 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
SKU: 13635173374

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4.8 ★★★★★
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Verified Purchase
Ruben vasquez
West Palm Beach, US
★★★★★ 5
Patches
Size: 0.35 x 2.36 Inch
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
M
Verified Purchase
Mark
Dallas, US
★★★★★ 5
They do the trick. That's for sure.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Fantastic. They vary in thickness to accommodate different size punctures, they look nice, good value for the money, the sand out the tire and internal belt to stop leakage. and they easy enough the use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 26, 2025
B
Verified Purchase
ballpeen
Belleville, US
★★★★★ 5
A must for tire repair
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Beats using a drill bit, this really is a must for tire plug, patch repair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
T
Verified Purchase
Tim R
Massapequa, US
★★★★★ 5
These tire repair reamers work great for plug/other type repairs
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These tire repair reamers work great for plug/other type repairs. Gone are the days of manually fighting a hand reamer through rough rubber. This is an efficient, neat and clean way to prepare a tire for the repair. Will purchase again as needed.
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Reviewed in the United States on November 27, 2025
M
Verified Purchase
Mark B.
Grantham, US
★★★★★ 4
Got what I paid for.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
I dropped my drill with the bit installed. It broke quite easily. It was a relatively inexpensive so I can't complain. A higher quality harder metal would have earned 5 stars.
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Reviewed in the United States on February 17, 2025

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