Rock Jock RJ-144401-101 Rear Coil Springs JL Wrangler 4-Door 3.5" Lift Pair

The Rock Jock RJ-144401-101 rear coil spring set delivers a 3.5-inch lift for Jeep JL Wrangler Unlimited 4-door models equipped with the 392 Hemi, diesel engine, or 4xe powertrain. Engineered specifically for heavier JL variants, these springs provide the additional support needed to maintain proper ride height and handling characteristics.

Key Features:

• Direct factory spring replacement for JL Wrangler Unlimited (4-door)
• Engineered spring rate optimized for 392, diesel, and 4xe weight distribution
• Compatible with RockJock Johnny Joint suspension systems and other aftermarket lift kits
• Gloss black powder coat finish for corrosion resistance
• Improved ride quality and height control over stock springs
• Sold as a pair for complete rear axle installation

RockJock's extensive testing and development process ensures these coil springs deliver the ideal balance between on-road comfort and off-road performance. The carefully calibrated spring rate maintains proper suspension geometry while providing excellent articulation on the trail. These springs are designed to handle the increased weight of diesel and 392-equipped JL models without sagging or compromising ride quality.