SKU: 66948649684

2018-2020 Wrangler JK/JL/JT Front Lift Springs 2 DR 4.0 Inch 4 DR 3.0 Inch (SYN8863-30)

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Description

2018-2020 Wrangler JK/JL/JT Front Lift Springs 2 DR 4.0 Inch 4 DR 3.0 Inch (SYN8863-30)Synergy MFG Jeep JL Multi Rate Front Lift Coil Springs. 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

Synergy MFG Jeep JL Multi-Rate Front Lift Coil Springs. 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. 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.

Benefits:

  • Increased ride quality
  • Increased wheel travel/articulation/traction
  • No spring bowing
  • Lifetime warranty/guarantee against sagging and breakage

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 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
  • Sold in pairs

Notes:

  • 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: 66948649684

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4.5 ★★★★★
Based on 12 reviews
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R
Verified Purchase
Roy Soto
Cuba, US
★★★★★ 5
Super tough, great value, addictive toy for my dog.
Flavor Name: Bacon, Size: X-Large
My dog pit/Shepard mix, loves this bone, and I love it because she can't kill this one like all those other Kong toys. She had a smaller nylabone, she killed it but took about a year, this larger one, she won't be able too that soon. Hard expensive Kong things, wouldn't last a couple months with her. So now, 3/17/2026 its still going. One end is gone, but the green part and other bone end she's working on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2025
L
Verified Purchase
Lynnann Lane
Port Orchard, US
★★★★★ 5
Great for Mega Chewer
Flavor Name: Bacon, Size: X-Large
Got one of these for our Rodesien Ridgeback when he was a puppy, and it worked well. So, when my daughter rescued two medium-sized dogs (one is an Australian Cow dog mix, and the other a Plott Hound mix) it was a no-brainer. The Plott Hound mix has jaws of steel and destroys anything and everything he can get his mouth around, except items from this maker. This is the only toy brand I've found that he doesn't demolish in under 5 minutes. Oh, and I'm stunned he can put bite marks in it. The Rodesien Ridgeback didn't even do that when he was a puppy, so I was surprised. However, that being said, the toy is holding up to hours of abuse. I had to buy additional toys because they don't like to share. Update on 01/09/20: these are still holding up to repeated abuse.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2019
P
Verified Purchase
Peter Suslock
Pawtucket, US
★★★★★ 4
Sensational Toy By Nylabone Keeps Your Best Freinds Teeth Snow White!
Flavor Name: Bacon, Size: X-Large
Our Bull dogs LOVE these bones. Long time Nylabone fans they've been making quality dog toys here in the United States for over fifty years. The nubs on the end of the bone age great for cleaning teeth and massaging bones. The center is softer but still holds up to even the toughest aggressive chewers. For whatever reason this isn't a "favorite" toy in the sense that they drag it around a few hours a day but they do play with it and we replace them when the ends start to shred - which should be done with all nylabone chew toys. The price on Amazon is virtually half the cost of the big box pet stores so it's affordable - not to mention fun to replace their toys and try new ones often. Plus with a Prime membership almost every item we buy ships with Free two day shipping - making the deals even that much sweeter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2012
A
Verified Purchase
Andhonor
Draper, US
★★★★★ 5
You've got to be kidding. Really !!!
Flavor Name: Bacon, Size: X-Large
I've used these for over fifteen years They are great. But, mine only lasted two days this time. Lucy the Labrador, left it in the driveway one afternoon. The next morning a huge garbage truck ran over it, making dust out of it. Normally, Lucy cant go any ware without it, so leaving it outside was her fault. And mine, for not checking. Yes, I ordered another one right away. Otherwise, she would have drove me crazy. These are great, and they last a long time, even with the most aggressive chewers. Lucy, passed away on June 16, at age 13, but you can bet I still have her favorite bone. The more a dog chews on these, the better they brush the dogs teeth. A+ product, just like their other items.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 30, 2015
M
Verified Purchase
Memly
Omaha, US
★★★★★ 5
Large, Heavy, DURABLE!
Flavor Name: Bacon, Size: Medium
This bone is probably too big and heavy for my medium size cocker spaniel. But I bought it anyway, because he was able to demolish the Nylabones that were labeled "for medium dogs". He can still pick this one up and carry it around, but he cannot fit an entire end into his mouth. Still, he loves it--he's greedy and relishes the fact that he has such a big bone all for himself. He even sleeps with it! I like it because of the fact that it doesn't completely fit into his mouth. Due to this, the bone has lasted much longer than all the other Nylabones I bought him in the past. And because he can't shred this one, I don't find sharp bit of Nylabone fragments everywhere and it doesn't make his gums bleed either. I happy I found this and will continue buying oversized Nylabone toys for my dog!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2012

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