ARB Coil Rear Jeep Jl 3137

The ARB 3137 rear coil springs are designed specifically for the Jeep JL, giving the rear suspension better support, consistent height, and a smoother ride — whether you’re driving daily or carrying extra gear. These coils are part of the Old Man Emu suspension line, known for balanced tuning and long-term performance on and off the road.

Built from X5K micro-alloyed spring steel, the coils deliver strength without unnecessary weight. Each spring is carefully wound to maintain stability under load, helping reduce sag when the Jeep is packed with passengers, tools, rooftop accessories, or camping equipment. The result is a steady rear stance and more confident handling.

The ARB 3137 coils are engineered with an optimized spring rate, so the Jeep doesn’t feel stiff or harsh. Instead, the ride remains controlled while still absorbing bumps and uneven terrain. They install like stock coils and work seamlessly with compatible shock setups, making them a great upgrade for drivers wanting better rear suspension performance without complicated modifications.

Finished in a durable black coating, the coils resist corrosion and wear from dirt, road salt, and tough weather conditions. If you’re building a dependable suspension setup for your Jeep JL, this coil spring set offers a simple upgrade that improves comfort, load control, and long-term reliability.

Product Details

• Brand: ARB / Old Man Emu
  
  
• Part Number: 3137
  
  
• Position: Rear
  
  
• Vehicle Fitment: Jeep JL (select models – confirm before purchase)
  
  
• Material: X5K Micro-Alloyed Spring Steel
  
  
• Bar Diameter: 15.5 mm
  
  
• Free Height: A: 430 mm / B: 420 mm
  
  
• Number of Turns: 7.84
  
  
• Coil Weight: 4.8 kg
  
  
• Spring Rate: 175 lbf/in
  
  
• Color: Black
  
  
• Prop 65: No

Features & Benefits

• Designed specifically for the Jeep JL rear suspension
  
  
• Improved load support for gear, towing, or passengers
  
  
• Stable ride height with reduced rear sag
  
  
• Tuned spring rate for comfort and control
  
  
• Strong micro-alloy steel construction
  
  
• Corrosion-resistant black finish
  
  
• Direct replacement fit with compatible suspension setups

FAQs — ARB 3137 Rear Coil Springs for Jeep JL

Q1: Do these coil springs fit all Jeep JL models?
Not every JL trim. Fitment can vary by engine, package, and suspension. Always verify with the fitment guide or your VIN before ordering.

Q2: Will the ride become too stiff after installing these?
No. The spring rate is tuned to keep the ride controlled while still comfortable. It helps stability, especially when carrying extra weight.

Q3: Can I use these with stock shocks?
Yes — they work with most stock shocks and compatible aftermarket shocks. For long-travel setups, matching shocks are recommended.

Q4: Do these help when carrying cargo or camping gear?
Yes. They reduce rear sag and maintain a more consistent ride height when the Jeep is loaded.

Q5: Do I need cutting or major modifications to install them?
No. These are designed as direct replacements and install similarly to the factory coils.