There’s a lot that goes into lifting a JT Gladiator. At TeraFlex, we want our suspension systems to meet their maximum potential, but also always provide a comfortable and stable ride in any driving condition. 

We get a lot of questions about the reason we use triple-rate springs in the rear of our lift kits for the JT Gladiator. There are numerous engineering reasons for using the triple-rate spring, but ultimately the biggest reason for doing so is so the spring can be long enough to expand during suspension travel and still provide the desired comfort and stability. 

When these springs are combined with Falcon Performance Shocks and other components found in TeraFlex suspension systems, you’ll have a rig that’ll drive over just about anything. 

JT Gladiator: Lift Coil Spring Pair – Rear 

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

Out back, we chose progressive triple-rate lift coil springs that provide optimal performance 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.

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 compression and rebound for optimal vehicle stability.

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

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

FEATURES/BENEFITS 

  • JT Lift Coil Springs are corner specific 
  • Rear progressive triple-rate lift coil springs allow consistent performance on-road and maximum flex off-road as well as stability while towing 
  • Shot peened to reduce spring sag and fatigue as well as increase life 
  • Powder-coated for superior element protection 
  • Limited Lifetime Warranty against defects 

INCLUDES 

  • Lift Coil Spring – Rear x 2 

VEHICLE FITMENT INFO 

Vehicle(s): 

  • JT Gladiator (pickup) 

Specs: 

  • Lift Height: Varies 

PRODUCT NOTES 

  • Advertised lift heights are not actual final lift heights. Our JT Gladiator coil springs are designed to correct the factory rake. Front coil springs are actual rated lift height, while rear coil springs are the companion spring used in our suspension lifts. Other variables will affect the actual final lift height such as a winch, aftermarket bumpers, full-size spare tire, loaded cargo weight, etc. 

INSTALL TIME 

  • 2.5 Hours 

SKUs 

  • 05-01-309-050 – JT: 0.5” Lift Coil Spring Spacer – Rear x 2 (use w/ 2.5” Lift Front Coil Spring Pair) 
  • 1873100 – JT: 3.5” Lift Coil Spring Pair – Rear 
  • 1874400 – JT: 4.5” Lift Coil Spring Pair – Rear 

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

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

— Words by Jason Udy