Teraflex JK 2-Door: 4

Teraflex JK 2-Door: 4" Prerunner Long Flexarm Suspension System

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USD 06-15-2022

Free shipping to the lower 48

Financing Available

TeraFlex products are experiencing delays. Kits w/o shocks 3-5 days, w/ 9550 VSS shocks 15-20 days, Kits w/Falcon 10-12 weeks. Additional delays are possible and changing daily.

Part Number



The TeraFlex Prerunner Long Flexarm Suspension System begins where the Alpine CT4 Suspension System ends. The 4 Inch Prerunner kit builds on the 4 inch Alpine CT4 kit by adding all the components needed for a purpose-built speed system including extensive gusseting and brackets, heavy-duty suspension limit straps, and SpeedBump bump stops tuned for high-speed travel.

Engineered to handle high-speed off-road excursions, the 4 inch Prerunner Long Flexarm Suspension System is dependable and maintenance-free kit. With its focus on the speed aspect of off-road performance, the Prerunner kit features fully adjustable Alpine long flexarms to maximize wheel travel. Although we recommend 35 inch tires to reduce unnecessary rotational mass for quicker acceleration, the 4 inch lift height will accommodate up to 37 inch tires.

Suspension limit straps and SpeedBump bump stops maximize down travel safety to prevent any potential damage to drivetrain of suspension. In addition to reducing vibration and harshness, the additional gussets and reinforced bracketry beefs up areas prone to damage from high-speed off-road driving.

Falcon shocks and TeraFlex coil springs have been designed to work together to improve both compression and rebound for optimal vehicle stability. Does Not include shocks.


  • JK 2-Door 4 Inch Prerunner Long Flexarm Suspension System
  • Designed for wide-open inspired driving
  • Designed for OEM or Tera44 axle housings
  • HD limit straps prevent suspension damage
  • Extensive gusseting and brackets beef up critically weak areas and prevent damage
  • SpeedBump bump stops provide progressive compression during high-speed suspension movement
  • Coil spring retainers prevent the springs from unseating during full suspension extension
  • Alignment required
  • TeraFlex Lifetime Warranty
  • Fits up to 37 inch tires
  • Black Powdercoat Finish
  • Zinc Plated Hardware
  • Sold As A Kit

Install Time

24 Hours


  • This is a very heavy item and must be shipped by freight truck
  • Requires aftermarket wheels with 4.5 inch backspacing or less - or TeraFlex Offset Wheel Adapters for stock wheels
  • Cutting and welding required
  • 2012-2018 JKs require exhaust spacers (P/N 2610000) or other exhaust modification for proper driveshaft clearance
  • Driveshaft modifications are highly recommended with this kit
  • Requires longer shocks - Falcon Shocks recommended

What's Included

  • 4 inch lift coil springs
  • SpeedBump bump stops
  • HD limit straps
  • Front and rear track bars
  • Exhaust spacer
  • Eight (8) fully adjustable Alpine long flexarms
  • Long flexarm brackets
  • Front brake line anchor kit
  • Additional gusseting and bracketry
  • And more


2017 Jeep Wrangler Rubicon 4WD
2017 Jeep Wrangler Sahara 4WD
2017 Jeep Wrangler Sport 4WD
2016 Jeep Wrangler 75th Anniversary 4WD
2016 Jeep Wrangler Rubicon 4WD
2016 Jeep Wrangler Sahara 4WD
2016 Jeep Wrangler Sport 4WD
2016 Jeep Wrangler Sport S 4WD
2015 Jeep Wrangler Rubicon 4WD
2015 Jeep Wrangler Sahara 4WD
2015 Jeep Wrangler Sport 4WD
2014 Jeep Wrangler Rubicon 4WD
2014 Jeep Wrangler Sahara 4WD
2014 Jeep Wrangler Sport 4WD
2013 Jeep Wrangler Rubicon 4WD
2013 Jeep Wrangler Sahara 4WD
2013 Jeep Wrangler Sport 4WD
2012 Jeep Wrangler Rubicon 4WD
2012 Jeep Wrangler Sahara 4WD
2012 Jeep Wrangler Sport 4WD
2011 Jeep Wrangler 70th Anniversary 4WD
2011 Jeep Wrangler Rubicon 4WD
2011 Jeep Wrangler Sahara 4WD
2011 Jeep Wrangler Sport 4WD
2010 Jeep Wrangler Rubicon 4WD
2010 Jeep Wrangler Sahara 4WD
2010 Jeep Wrangler Sport 4WD
2010 Jeep Wrangler X 4WD
2009 Jeep Wrangler Rubicon 4WD
2009 Jeep Wrangler Sahara 4WD
2009 Jeep Wrangler X 4WD
2008 Jeep Wrangler Rubicon 4WD
2008 Jeep Wrangler Sahara 4WD
2008 Jeep Wrangler X 4WD
2007 Jeep Wrangler Rubicon 4WD
2007 Jeep Wrangler Sahara 4WD
2007 Jeep Wrangler X 4WD
2018 Jeep Wrangler JK Rubicon 4WD
2018 Jeep Wrangler JK Sahara 4WD
2018 Jeep Wrangler JK Sport 4WD

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About Us
We are dedicated to helping you find the perfect fitment for your ride while also bringing you the highest quality, affordable aftermarket parts in the world! We are truck and car enthusiasts who build their dream rides with these very products.

Shipping times vary depending on item and immediate availability. Many suspension kits will ship out within 3-5 business days while some select items may take up to 7-10 business days. You will receive the tracking information via email as soon as it is available so you can easily track your package(s) from us, to your door. Keep in mind, some suspension components may ship separately and could arrive at different times. All shipping prices are based on the lower 48 states unless specified otherwise. Always inspect your items immediately upon receipt and notify us within 5 business days if there are any concerns, damages, or missing items.

All manufacturer warranties apply and we will support you as the customer in ensuring you get a quality product. For any questions or concerns please email info@customoffsets.com NOTE: Returns not related to a warranty issue may result in a 20% shipping, handling, and restocking fee. Please also note that you have 30 days from the delivery date to inventory and verify lift kit components. You must contact us within this 30 day period in order to have missing/damaged parts sent to you free of charge. After 30 days from date of delivery any missing parts or damaged parts will be the customers expense to replace and/or fix. Click here to learn more about our warranty.

WARNING: This product can expose you to Nickel, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to p65warnings.ca.gov.

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