Synergy MFG. JK 4-Door Stage 4 Long Arm Suspension System, 4/4.5" Lift

*Actual product may differ from image shown
Brand: Synergy MFG
Product Type: Lift Kits
SKU: SYN8044-45

Availability: In stock

Synergy MFG

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The Stage 4 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% bolt on system with no welding required. This system will fit 37" tires with stock fenders or 40" tires with high fenders.

Synergy Suspension Jeep JK Stage 4 Synergy Long Arm Suspension System

  • 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 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 2" X .250" 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.
  • Adjustable control arms incorporate the tried and true Johnny Joints® for paramount performance & durability
  • 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 abrasive-resistant powder coat finish for maximum durability and corrosion resistance
  • 100% bolt on components assure an easy, trouble free installation with the use of basic hand tools
  • Requires a maximum 4-3/4" backspace wheel or wheel spacer with factory wheel setup. 4-1/2" back spacing is recommended


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

Additional Info
Additional Info
SKU SYN8044-45
Product Type Lift Kits
Brand Synergy MFG
Hub Centric No
Lift Height 4, 4.50
Recommended Tire Size 37"

Vehicle Fits

Jeep Wrangler Unlimited 2007 3.8
Jeep Wrangler Unlimited 2008 3.8L
Jeep Wrangler Unlimited 2009 3.8L
Jeep Wrangler Unlimited 2010 3.8L
Jeep Wrangler Unlimited 2011 3.8L
Jeep Wrangler Unlimited 2012 3.6L
Jeep Wrangler Unlimited 2013 3.6L
Jeep Wrangler Unlimited 2014 3.6L
Jeep Wrangler Unlimited 2015 3.6L
Jeep Wrangler Unlimited 2016 3.6L
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