TeraFlex Lift Coil Springs

TeraFlex Lift Coil Springs are perfectly engineered for your JL, JK, and TJ Jeep Wrangler/Unlimited and JT Gladiator. Our engineers focused on extensive rate tuning and dynamic balance between front and rear load bias to produce Lift Coil Springs that deliver unsurpassed highway handling and off-road performance.

We recommend pairing TeraFlex Lift Coil Springs with Falcon Performance Shocks for superior performance. TeraFlex Lift Coil Springs and Falcon Performance Shocks have been engineered together to improve both compression and rebound for optimal vehicle stability.

FEATURES & BENEFITS:

  • Shot peened to reduce spring sag and fatigue as well as increase life
  • Powder coated for superior element protection
  • Limited Lifetime Warranty against defects
  • Sold in pairs

JL Wrangler/Unlimited

Up front, we chose progressive dual-rate lift coil springs that provide optimal performance both on and off-road. These progressive dual-rate coil springs provide consistent performance and predictable handling throughout normal street driving — just like a linear rate spring. When the axle begins to droop, the softer sprung upper section of the coil spring begins to unwind for maximum flex and spring retention.

Around back, we chose the same tried and true linear rate technology preferred by most automakers including Jeep. Linear rate springs provide the maximum number of active coils under load for consistent performance and predictable handling throughout the full range of suspension travel both on- and off-road. Rear Lift Coil Springs are corner specific.

FEATURES & BENEFITS:

  • JL and JT Lift Coil Springs are corner specific
  • Front progressive dual-rate lift coil springs allow consistent performance on-road and maximum flex off-road
  • Rear linear single-rate lift coil springs provide consistent performance

FRONT

REAR

JT Gladiator

Up front, we chose progressive dual-rate lift coil springs that provide optimal performance both on and off-road. These progressive dual-rate coil springs provide consistent performance and predictable handling throughout normal street driving — just like a linear rate spring. When the axle begins to droop, the softer sprung upper section of the coil spring begins to unwind for maximum flex and spring retention.

1874400 – JT: 4.5" Lift Coil Spring Pair – Rear

Out back, we chose progressive triple-rate lift coil springs that provide optimal performance both on and off-road as well as while towing. These progressive triple-rate coil springs provide consistent performance and predictable handling throughout normal street driving — just like a linear rate spring.

When the axle begins to droop, the softer sprung upper section of the coil spring begins to unwind for maximum flex and spring retention. The stiffer sprung lower section of the coil provides stability while towing. Additionally, we lowered the towing coils to improve ride quality while unladen.

FEATURES & BENEFITS:

  • JL and JT Lift Coil Springs are corner specific
  • Front progressive dual-rate lift coil springs allow consistent performance on-road and maximum flex off-road
  • Rear progressive triple-rate lift coil springs allow consistent performance on-road and maximum flex off-road as well as stability while towing

FRONT

  • JT: 2.5” Lift Coil Spring Pair – Front
  • JT: 3.5” Lift Coil Spring Pair – Front
  • JT: 4.5” Lift Coil Spring Pair – Front

*Match w/ 0.5” Rear Coil Spring Spacers below.

REAR

  • JT: 0.5” Coil Spring Spacer – Rear (05-01-309-050) x 2
  • JT: 3.5” Lift Coil Spring Pair – Rear
  • JT: 4.5” Lift Coil Spring Pair – Rear

*Match w/ 2.5” Front Coil Spring Pair above.

JK Wrangler/Unlimited

1853402 – JK: 2dr 6" | 4dr 4" Lift Coil Spring Pair – Front

TeraFlex chose the same tried and true linear rate technology preferred by most automakers including Jeep. Linear rate springs provide the maximum number of active coils under load for consistent performance and predictable handling throughout the full range of suspension travel both on- and off-road.

FEATURES & BENEFITS:

  • JK and TJ Lift Coil Springs are axle specific
  • Linear single-rate lift coil springs provide consistent performance

FRONT

REAR

JK: Outback Lift Coil Springs

1864202 – JK: 2dr 4" | 4dr 3" Lift Outback Coil Spring Pair – Rear

Dedicated overland travel requires unique spring rates to handle heavy loads and continuous mechanical resonance compared to standard coil spring rates. That’s why we paid special attention to spring rate tuning and development of our Outback Lift Coil Springs. All this adds up to our load-enhanced heavy-rate lift coil springs that meet the demands of a fully loaded Jeep while maintaining advertised lift height.

FEATURES & BENEFITS:

  • Designed for the additional cargo demands of overland driving
  • Load-enhanced heavy-rate lift coil springs

FRONT

  • JK 4dr: 2.5" Lift Outback Coil Spring Pair – Front
  • JK 2dr | JK 4dr: 3" Lift Outback Coil Spring Pair – Front
  • JK 2dr: 4" Lift Outback Coil Spring Pair – Front

REAR

  • JK 4dr: 2.5" Lift Outback Coil Spring Pair – Rear
  • JK 2dr | JK 4dr: 3" Lift Outback Coil Spring Pair – Rear
  • JK 2dr: 4" Lift Outback Coil Spring Pair – Rear

TJ Wrangler/Unlimited

1843502 – TJ: 5" Lift Coil Spring Pair – Front

TeraFlex chose the same tried and true linear rate technology preferred by most automakers including Jeep. Linear rate springs provide the maximum number of active coils under load for consistent performance and predictable handling throughout the full range of suspension travel both on- and off-road.

FEATURES & BENEFITS:

  • JK and TJ Lift Coil Springs are axle specific
  • Linear single-rate lift coil springs provide consistent performance

FRONT

  • TJ: 2” Lift Coil Spring Pair – Front
  • TJ: 3” Lift Coil Spring Pair – Front
  • TJ: 4” Lift Coil Spring Pair – Front
  • TJ: 5” Lift Coil Spring Pair – Front

REAR

  • TJ: 2” Lift Coil Spring Pair– Rear
  • TJ: 3” Lift Coil Spring Pair – Rear
  • TJ: 4” Lift Coil Spring Pair – Rear
  • TJ: 5” Lift Coil Spring Pair – Rear

Accessories

JL: 0.5” Coil Spring Spacer Load Level Kits

The TeraFlex JL: 0.5” Coil Spring Spacer Load Level Kit provides additional height to help compensate for heavier aftermarket gear such as a bumper, a winch, a larger spare tire, or weekend swag.

Can use only front, only rear, or all four spacers.

  • JL: 0.5” Coil Spring Spacer Load Level Kit w/ Hardware Pack – Front & Rear
  • JL | JT: 0.5” Coil Spring Spacer Load Level Kit – Front
  • JL: 0.5” Coil Spring Spacer Load Level Kit w/ Hardware Pack – Rear

JL | JT EcoDiesel: 1” Coil Spring Spacer Adjustment Kit – Front

The TeraFlex JL / JT EcoDiesel: 1” Front Coil Spring Spacer Adjustment Kit is required with all our coil spring lift kits to properly level the front suspension on the JL Wrangler/Unlimited and JT Gladiator models with the heavier 3.0-liter EcoDiesel V6 engine.

Can also be used on vehicles with gas engines as a 1” Front Coil Spring Spacer Load Level Kit to help compensate for heavier aftermarket gear such as bumpers, a winch, a larger spare tire, or weekend swag.

JL | JT: Coil Spring Spacers

Use these TeraFlex Coil Spring Spacers to level out a loaded vehicle. Compatible with stock height or lifted vehicles. Can be combined and/or stacked.

Sold individually.

JL | JT FRONT

  • JL | JT: 0.5” Coil Spring Spacer – Front (# 04-01-109-050)
  • JL | JT: 1” Coil Spring Spacer – Front (# 05-01-109-100)
  • JL | JT: 2” Coil Spring Spacer – Front (# 05-01-109-200)
  • JL | JT: 3” Coil Spring Spacer – Front (# 05-01-109-300)

JL REAR

  • JL: 0.5” Coil Spring Spacer – Rear (# 04-01-209-050)
  • JL: 1.5” Coil Spring Spacer – Rear (# 05-01-209-150)
  • JL: 2.5” Coil Spring Spacer – Rear (# 05-01-209-250)
  • JL: 0.5” Coil Spring Spacer Hardware Pack – Rear (# 5086)

JT REAR

  • JT: 0.5” Coil Spring Spacer – Rear (# 05-01-309-050)
  • JT: 1.5” Coil Spring Spacer – Rear (# 05-01-309-150)

JK: Coil Spring Spacers

Use these TeraFlex JK: Coil Spring Spacers to level out a loaded vehicle. Compatible with stock height or lifted vehicles.

Rear Coil Spring Spacers also incorporate our industry-exclusive spring retainer and guide, which help realign the coil spring to its proper location during extreme articulation preventing the spring from dropping out.

Sold individually.

FRONT

  • JK: 0.5” Coil Spring Spacer – Front
  • JK: 1” Coil Spring Spacer – Front
  • JK: 2.5” Coil Spring Spacer – Front

REAR

  • JK: 0.5” Coil Spring Spacer – Rear
  • JK: 1” Coil Spring Spacer – Rear
  • JK: 2” Coil Spring Spacer – Rear
  • JK: 2.5” Coil Spring Spacer – Rear

TJ: Coil Spring Spacers

Use these TeraFlex TJ: Coil Spring Spacers to level out a loaded vehicle. Compatible with stock height or lifted vehicles. Requires factory 0.5” spring isolator to achieve advertised height.

Fits front or rear coil springs.

Sold individually

FRONT or REAR

  • TJ: 1.25” Coil Spring Spacer – Front or Rear
  • TJ: 2” Coil Spring Spacer – Front or Rear

JK: Prerunner Suspension Limit Strap & Coil Spring Retainer Kit (3–4” Lift)

The TeraFlex JK: Prerunner Suspension Limit Strap & Coil Spring Retainer Kit includes all the components required to upgrade your existing lift to a Prerunner setup.

TeraFlex JK: Suspension Limit Straps are the best way to limit suspension travel and prevent premature drivetrain failure. Limit Straps are constructed from double-looped, high-strength webbing, while the mounting tabs are constructed from heat-treated 4130 mounting tabs with a reinforced buckle to protect the webbing from being cut. Fronts measure 15.125” and rears measure 13.5”.

TeraFlex JK: Coil Spring Retainers are essential during rapid suspension cycling to prevent the spring from unloading causing rotation or shifting. Precision cut and zinc plated for durability.

The TeraFlex JK: Front SpeedBump Spring Bucket Jounce Tube Brace Kit adds an extra layer of protection to your suspension over the factory JK Wrangler/Unlimited spring guide and jounce tube, which can deform during hard compression and suspension movement. This kit is designed only to work with TeraFlex Front SpeedBump Bump Stops.

Are you tired of your control arms always coming out of adjustment? Stop the constant axle misalignment with the TeraFlex JK: Control Arm Cam Bolt Washer Kit. Our Control Arm Cam Bolt Washers lock the cam bolt into position to eliminate potential movement, which causes axle misalignment. Fits into the factory locations of the front lower and rear upper control arm cam bolt adjusters.

INCLUDES: Suspension Limit Strap Kit (front, rear), Coil Spring Retainer Kit (front lower, rear upper), SpeedBump Spring Bucket Jounce Tube Brace Kit (front), Control Arm Cam Bolt Washer Kit (front lower, rear upper), and all necessary hardware. Does NOT include Rear Lower Coil Spring Retainer Kit.

4957000 – JK: Prerunner Suspension Limit Strap & Coil Spring Retainer Kit (3–4" Lift)

COMPLETE KIT

  • JK: Prerunner Suspension Limit Strap & Coil Spring Retainer Kit (3–4” Lift)

COMBINATION KITS

  • JK: Suspension Limit Strap Kit – 15.125" Front & 13.5" Rear (3–4” Lift)
  • JK: Coil Spring Retainer Kit – Front Lower & Rear Upper
  • JK: SpeedBump Spring Bucket Jounce Tube Brace Kit – Front
  • JK: Control Arm Cam Bolt Washer Kit – Front Lower & Rear Upper

INDIVIDUAL KITS

  • JK: 15.125" Suspension Limit Strap Kit – Front (3–4” Lift)
  • JK: 13.5" Suspension Limit Strap Kit – Rear (3–4” Lift)
  • JK: Coil Spring Retainer Kit – Front Lower
  • JK: Coil Spring Retainer Kit – Rear Upper
  • JK: Coil Spring Retainer Kit – Rear Lower

JL | JT: HD Coil Spring Perch Kit – Front Lower

The helical shape of these TeraFlex JL | JT: Front Lower HD Coil Spring Perches are custom designed to match our Front Lift Coil Springs for JL Wrangler/Unlimited and JT Gladiator models. Constructed from Elastollan Polyurethane, these HD Coil Spring Perches provide improved support and durability compared to the OEM pieces. Sits between the front coil spring and front axle housing.

Sold in pairs.

  • JL | JT: HD Coil Spring Perch Kit – Front Lower

Coil Spring Pads

3990771 – JK: Tera CRD60 Front Axle Bracket – Coil Spring Pad – Front Lower Left

TeraFlex Coil Spring Pads ensure proper positioning of the coil spring for correct suspension geometry.

  • JK: Coil Spring Pad – Front Lower Left
  • JK: Coil Spring Pad – Front Lower Right
  • JK: Coil Spring Pad – Rear Lower
  • TJ: Coil Spring Pad – Front Lower Left
  • TJ: Coil Spring Pad – Front Lower Right
  • TJ: Coil Spring Pad – Rear Lower

— — — SKUs, components, and pricing are subject to change. See the website descriptions for the latest information. — — —

Check out all our TeraFlex Suspensions Lifts, Off-Road Performance Parts, and Jeep Accessories HERE!

— Words by Jason Udy