METALCLOAK
Reference: MC7031
Coil springs
JK Wrangler Coils 3,5" 2 Door | 2,5" 4 Door True Dual Rate Coil Rear
MetalCloak True Dual Rate rear coil springs for Jeep Wrangler JK (2007–2018). Designed for 3.5" rear lift on a 2-door JK or 2.5" rear lift on a 4-door JKU. Dual-rate design helps keep street manners while improving articulation off-road. Sold as a pair for the rear axle.
MetalCloak True Dual Rate Rear Coils – Jeep Wrangler JK (2007–2018)
Want more suspension travel without turning your Wrangler into a boat on-road? MetalCloak True Dual Rate rear coils are built to deliver usable flex off-road while keeping the rear end controlled and consistent in daily driving. The dual-rate setup is aimed at smooth initial movement and dependable support as the suspension loads up.
Key features
- Lift height fitment: rear 3.5" on JK 2-door or rear 2.5" on JKU 4-door.
- True Dual Rate design for a balanced feel: comfort and traction off-road with better control on pavement.
- Long free length supports increased droop and articulation.
- Stable seating helps keep the coil properly located through full suspension travel.
- Consistent ride height with a focus on reducing long-term sag.
Technical data
- Vehicle fitment: Jeep Wrangler JK 2007–2018 (rear)
- Spring type: True Dual Rate rear coil springs
- Material: high tensile steel (chrome-silicon alloy)
- Finish: black powder coat
- Free length: 21" (533.4 mm)
- Solid height: 8" (203.2 mm)
What’s included
- (2) MetalCloak True Dual Rate rear coil springs
Who it’s for
- JK owners building a capable trail rig that still drives predictably on the road.
- Drivers who want real articulation gains and better rear suspension behavior at full droop.
- Overland or weekend trail setups where consistent rear ride height matters under load.
Notes for installation
- Recommended pairing: designed to work best with Duroflex joint arms and 6Pak or RockSport shocks (per manufacturer guidance).
- Alignment: after suspension changes, a proper alignment check is recommended.
- Do not re-powdercoat: the manufacturer advises against additional powder coating (heat cycles can affect spring properties and may impact lift height and warranty).
- Install complexity: described as straightforward with no body modification; typical install time 1–2 hours.
Summary (for fast scanning)
MetalCloak 7031 rear True Dual Rate coil springs fit Jeep Wrangler JK 2007–2018. Intended rear lift: 3.5" for 2-door JK or 2.5" for 4-door JKU. With a 21" free length and black powder coat finish, they’re built to improve suspension travel and rear axle articulation while keeping ride height stable and controllable.
