SKU: 20258705659

JK 4.0 Inch Lift Stage 4 Suspension System 07-18 Wrangler JK 2 DR Synergy MFG

Sale price$2166.72 Regular price$2407.47
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

JK 4.0 Inch Lift Stage 4 Suspension System 07-18 Wrangler JK 2 DR Synergy MFGSynergy Jeep JK 4 Inch Lift Stage 4 Long Arm Suspension System is for those wanting maximum performance and capability without sacrificing ride quality. It carries over the quality components of the Stage 3 System, but improves upon them by swapping out the Standard Length Control Arms for Adjustable Long Arms and Long Arm Mounting Brackets. This is a 100 percent bolt on system with no welding required. This system will fit 37 inch tires with stock

Synergy Jeep JK 4 Inch Lift Stage 4 Long Arm Suspension System is for those wanting maximum performance and capability without sacrificing ride quality. It carries over the quality components of the Stage 3 System, but improves upon them by swapping out the Standard Length Control Arms for Adjustable Long Arms and Long Arm Mounting Brackets. This is a 100 percent bolt on system with no welding required. This system will fit 37 inch tires with stock fenders or 40 inch tires with high fenders.
Details:

  • Fits 07-18 Jeep Wrangler JK 2-Door
  • Stage 4 key features are front and rear track bar relocation brackets, flipped drag link, and all adjustable upper lower long arms
  • Front and rear bump stop extension kits
  • Front and rear sway bar links
  • Front and rear extended Stainless Steel steel braided brake lines
  • Synergy double adjuster sleeve pinch bolt assembly allows for adjustment of control arm, track bar, tie rod, and drag link length without removal
  • Front and rear track bar relocation brackets raise track bar mounting positions increasing suspension roll center heights which improves handling on and off road
  • Lower control arms are manufactured from high quality crush resistant 2X.250 inch Wall 1026 DOM tubing
  • Features Synergy Dual Durometer Bushings (DDB) with Teflon bearing surface for a maintenance free design focusing on performance, flex, longevity, and ride quality.
  • Front and rear lower shock mounts
  • Optional front sway bar disconnect system for ultimate trail articulation mounts sway bar up and out of the way when disconnected from the axle
  • Progressive wound coil spring manufactured using the latest in CNC hot winding technology keeps spring from coming unbound at full suspension droop
  • Suspension components feature an abrasion-resistant Powdercoat finish for maximum durability and corrosion resistance
  • 100 percent bolt on components assure an easy, trouble free installation with the use of basic hand tools
  • Requires a maximum 4-3/4 inch backspace wheel or wheel spacer with factory wheel setup. 4-1/2 inch back spacing is recommended
  • Synergy suspension systems are a modular design so all components are available separately

Note:

  • 2012+ JK's lifted over 2 inch will require exhaust spacers (5017), or a front aftermarket drive shaft to prevent interference with the exhaust
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: 20258705659

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Scottman
Grantham, US
★★★★★ 5
Nice for the price
Size: Large, Color: White
I needed a white jacket for a specific event and this is actually pretty good quality for the price. I was quite impressed. I’m only going to wear it one time, but I think you’ll be pleased with what you get for the money.
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Reviewed in the United States on April 3, 2026
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Michael L. Chernault
Lake Worth, US
★★★★★ 5
Know your body type.
Color: Navy Blue, Size: Large
I really liked the look and the buttons when I ordered it but I wound up returning only because I have to have a slim or fitted cut for any shirt to look good on me. This shirt did not hug me in the sides and looked like I was wearing someone else’s clothes. Nice shirt and good quality but it didn’t fit me personally. I did consider having it tailored but the cost of doing that was almost as much as the shirt.
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Reviewed in the United States on May 31, 2026
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Jason Stevens
Lexington, US
★★★★★ 5
Cool comfortable good looks
Color: Navy Blue, Size: X-Large
Nice fit really comfortable good color not a hot shirt
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Reviewed in the United States on May 18, 2026
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Elle Cooper
Massapequa, US
★★★★★ 5
Perfect for in the field or the office.
Color: Blue Gray, Size: XX-Large
Perfect for use in the field or in the office. Great quality and the fit was perfect!!
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Reviewed in the United States on May 17, 2026
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M. Bracke
Birmingham, US
★★★★★ 4
Good inexpensive shirt.
Color: Black, Size: X-Large
Nice shirt for the price. Good fit to size. Cotton/ poly blend. Does not wrinkle too bad after washing.
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Reviewed in the United States on December 8, 2025

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