Description

This pair of RockJock rear coil springs will provide 3 1/2 inches of lift in JT Gladiator applications that feature the 3.6L gas or the EcoDiesel engine. These springs directly replace factory springs and are designed to work with RockJock Johnny Joint suspension systems or other manufacturers lift kits and provide improved ride quality and height control. Finish is gloss black powder coat. Extensive research was done by RockJock to develop the perfect spring rate and quality of the coil springs. The results: they provide the best in comfortable ride and excellent performance off-road. If you need help choosing the correct springs for your Jeep - just call the RockJock sales staff!

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	rokRJ-154001-101	RockJock JT Gladiator (3.6L) 3.5in Lift Front/Rear Coil Spring Set of 4 (1x rokRJ-154401-101, 1x rokRJ-154101-101)
	rokRJ-154002-101	RockJock JT Gladiator (Diesel) 3.5in Lift Coil Spring Front/Rear Set of 4 (1x rokRJ-154401-101, 1x rokRJ-154102-101)
	rokRJ-JTD000-103	RockJock JT Diesel Base Level Suspension System 3.5in Lift (1x rokRJ-154401-101, 1x rokRJ-151403-101, 1x rokRJ-156400-101, 1x rokRJ-253204-101, 1x rokRJ-9120FJLF, 1x rokRJ-141102-103, 1x rokRJ-107100-1, 1x rokRJ-107102-101, 1x rokRJ-141300-101, 1x rokRJ-243100-103, 1x rokRJ-154102-101, 1x rokRJ-151402-101, 1x rokRJ-151401-101)
	rokRJ-JTD000-101	RockJock JT Diesel Sport Suspension System 3.5in Lift (1x rokRJ-154401-101, 1x rokRJ-151403-101, 1x rokRJ-156400-101, 1x rokRJ-253204-101, 1x rokRJ-150400-103, 1x rokRJ-9120FJLF, 1x rokCE-9818FUA, 1x rokRJ-107100-1, 1x rokRJ-107102-101, 1x rokRJ-141300-101, 1x rokRJ-243100-103, 1x rokRJ-154102-101, 1x rokRJ-151402-101, 1x rokRJ-151401-101)
	rokRJ-JTD001-101	RockJock JT Diesel Pro Edition Suspension System 3.5in Lift (1x rokRJ-154401-101, 1x rokRJ-151403-101, 1x rokRJ-156400-101, 1x rokRJ-253204-101, 1x rokRJ-150400-105, 1x rokRJ-150400-103, 1x rokRJ-150400-101, 1x rokRJ-9120FJLF, 1x rokCE-9818FUA, 1x rokCE-9818FLA, 1x rokRJ-107100-1, 1x rokRJ-107102-101, 1x rokRJ-141300-101, 1x rokRJ-243100-103, 1x rokRJ-154102-101, 1x rokRJ-151402-101, 1x rokRJ-151401-101)
	rokRJ-JTG000-103	RockJock JT V6 Gas Base Level Suspension System 3.5in Lift Excl. Mojave (1x rokRJ-154401-101, 1x rokRJ-151403-101, 1x rokRJ-156400-101, 1x rokRJ-253204-101, 1x rokRJ-9120FJLF, 1x rokRJ-141102-103, 1x rokRJ-141300-101, 1x rokRJ-243100-103, 1x rokRJ-154101-101, 1x rokCE-9818FBSK, 1x rokRJ-151402-101, 1x rokRJ-151401-101)
	rokRJ-JTG000-101	RockJock JT V6 Gas Sport Edition Suspension System 3.5in Lift Excl. Mojave (1x rokRJ-154401-101, 1x rokRJ-151403-101, 1x rokRJ-156400-101, 1x rokRJ-253204-101, 1x rokRJ-150400-103, 1x rokRJ-9120FJLF, 1x rokCE-9818FUA, 1x rokRJ-141300-101, 1x rokRJ-243100-103, 1x rokRJ-154101-101, 1x rokCE-9818FBSK, 1x rokRJ-151402-101, 1x rokRJ-151401-101)
	rokRJ-JTG001-101	RockJock Pro Edition JT Gladiator 3.6L V6 Suspension System - 3.5in Lift (Excl. Mojave) (1x rokRJ-154401-101, 1x rokRJ-151403-101, 1x rokRJ-156400-101, 1x rokRJ-253204-101, 1x rokRJ-150400-105, 1x rokRJ-150400-103, 1x rokRJ-150400-101, 1x rokRJ-9120FJLF, 1x rokCE-9818FUA, 1x rokCE-9818FLA, 1x rokRJ-141300-101, 1x rokRJ-243100-103, 1x rokRJ-154101-101, 1x rokCE-9818FBSK, 1x rokRJ-151402-101, 1x rokRJ-151401-101)

Data: v4.2 - Upd: 2026-10-14 13:32:08

Features

Specifications

Product Attributes - Brand

Rock Jock

Product Attributes - Manufacturer's Part Number

RJ-154401-101

Product Attributes - Part Type

Coil Springs

Product Attributes - Product Line

Rock Jock Coil Springs

Product Attributes - Ride Height

Lifted

Product Attributes - Spring Positioning

Rear

Product Attributes - Rear Spring Raised Amount Range (in.)

3.50 in.

Product Attributes - Progressive Rate Spring

No

Product Attributes - Spring Finish

Black

Product Attributes - Bushings Included

No

Product Attributes - Quantity

Sold as a pair.

Compatibility