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Synergy 2-Door 4.0 In./ 4-Door 3.0 In., /TJ 4 In. Front Lift Springs (97-18 Jeep Wrangler TJ & JK)

ExtremeTerrain no longer carries the Synergy 2-Door 4.0 In./ 4-Door 3.0 In., /TJ 4 In. Front Lift Springs (97-18 Jeep Wrangler TJ & JK). Please check out Jeep Coil Springs & Accessories for an updated selection.
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Features & Details

  • Provides 4 Inches of Lift on 2 Door JK
  • Provides 3 Inches of Lift on 4 Door JK
  • Provides 4 Inches of Lift on TJ Models
  • Progressively Wound
  • Accommodates 35-37 Inch Tires
  • Excellent Off Road Performance
  • Abrasive and Corrosion Resistant
  • Black Powder-Coated Finish
  • Designed for 1997-2018 Wrangler TJ & JK Models
Performance. The Synergy Front Lift Springs are designed to improve the quality and comfort of your Wrangler's off road performance. They are progressively wound to prevent annoying clanking noise and also keep the springs from coming apart at suspension droop. You'll find these springs will allow you to run 35 inch tires on a TJ or 4 door JK, as well as massive 37 inch tires on 2 door JK applications.

Construction. These Front lift springs are abrasive resistant and have black powder-coated finish to offer durability and also prevent damage due to corrosion. These rear lift springs are full frequency balanced and feature tuned spring rates for the most in performance and reliability.

Application. These Synergy Front Lift Springs are designed to fit 1997-2018 Jeep Wrangler TJ & JK models. Use of extended or tall bump stops is recommended with these springs.

Fitment: 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

CA Residents: Warning: California's Proposition 65

What's in the Box
  • (2) Front lift springs
Installation Info
Tech Specs
Will it fit my Wrangler?
  • JK Rubicon 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
  • JK Rubicon 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
  • JK Wrangler 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
  • JK Wrangler 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
  • TJ Rubicon 2 Door - 03, 04, 05, 06
  • TJ Rubicon Unlimited 2 Door - 05, 06
  • TJ Wrangler 2 Door - 97, 98, 99, 00, 01, 02, 03, 04, 05, 06
  • TJ Wrangler Unlimited 2 Door - 04, 05, 06

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Questions & Answers (1)

1 Top Rated Question

I was wondering the spring rating on these springs. 645 or 900. My jeep has a lot of body roll in the springs. I want stiffer springs to help with the added weight of my front bumper and winches and stuff. It rides better with just me. if I go anywhere with the wife and kids in the jeep it is bad thanks.

  • Thank you for your question. The Synergy 2-Door 4.0 In./ 4-Door 3.0 In. Rear Lift Springs are multi-rate coil springs.

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Customer Reviews (3) Write a Review

Overall Rating 4

out of 5 stars

Installation Time:Full Day

  • Fit 3.666667 3.7
  • Appearance 5 5
  • Bang For Your Buck 3.333333 3.3



  • 2/5

    Installation Time: Shop Install

    December 08, 2017

    Too tall

    I have the JKU and these are advertised to add 3”. However it seems more like 4.5”. As a result I needed to make further adjustments with adjustable track bars and sway bar links. The roll center still seems out of whack. Also, I’m not sure I have the right shocks now. I bought the Fox shocks for a 3.5 lift but it seems like I really need the longer shocks. Really disappointed.

    GoodisonJeep

    Year: 2015Submodel: Wrangler

    Helpful (4)

  • 5/5

    Installation Time: Afternoon

    November 30, 2017

    Synergy Springs

    Got the clearance I needed, the looks I wanted, and the ride is smooth and controllable. Great investment into our JK.

    Haystack

    Year: 2010Submodel: Wrangler

    Helpful (4)

  • 5/5

    Installation Time: Less than 1 Hour

    January 15, 2016

    Nice springs

    As advertised the provide the among if lift I was looking for even with the rock bumper and winch. I haven't yet had a chance to get them Offroad but I think it will be a huge improvement over the older ones.

    Stormtrooperjk

    Year: 2015Farmington, MN, USA

    Helpful (4)

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