BDS 4.5 Inch Long Arm Lift Kit | Jeep Wrangler JK (2007-2018) 4-Door | FOX 2.5 Performance Elite Shocks

Configured with FOX 2.5 Performance Elite shocks featuring a 2.5-inch impact extruded aluminum body, a massive 7/8-inch hard chrome plated heat-treated alloy steel shaft, and an external reservoir design that separates shock oil from high-pressure nitrogen. Includes a DSC (Dual Speed Compression Adjuster) as standard, allowing adjustment for terrain, load, and speed. Fully serviceable for a lifetime of use.

Overview

This 4.5-inch long arm lift kit from BDS Suspension is designed for 2007–2018 Jeep Wrangler JK 4-Door models. The kit enhances the factory 4-link system with a redesigned 4-link long arm conversion to improve articulation and offer better control throughout wheel travel, while providing clearance for up to 37-inch tires.

Up front, the kit includes new pivot mounts constructed from 1/4-inch thick steel, heavy-duty lower flex arms, adjustable upper flex arms, 4-inch Pro-Ride coil springs capable of full coil bind, and 3-inch bump stop extensions to control compression travel while increasing wheel travel. Also included are braided stainless steel brake lines, sway bar links, a front track bar relocation bracket, and a pitman arm to improve steering and handling geometry.

In the rear, the kit features new pivot mounts, heavy-duty lower flex arms, adjustable upper flex arms, Pro-Ride coil springs, sway bar drop brackets, and a rear frame-mounted track bar relocation bracket to correct axle shift.

Long Arm Conversion

The long arm upgrade uses massive 1/4-inch steel frame-mounted brackets to install oversized upper and lower formed long arms. The arms are designed for maximum tire clearance, allowing the stock control arm tabs to remain in place on the vehicle. Upper arms are made of solid stock, while the heavy-wall tubular lower arms utilize oversized, greaseable polyurethane bushings for superior road vibration isolation.

Pro-Ride Coil Springs

Full-length, gas-specific, progressive-rate Pro-Ride coil springs are supplied to provide the correct lift height and a smooth, predictable ride across various terrains. Manufactured from high-tensile steel with properly sized wire diameter, these direct OE replacement coil springs deliver maximum reliability without premature coil bind.

Features

• Redesigned 4-link long arm improves articulation and offers better control throughout wheel travel
• Pro-Ride coil springs offer improved ride quality and more articulation
• Sway bar quick disconnects and extended rear link for improved off-road flex
• Rear track bar bracket repositions rear axle under vehicle
• Choice of NX2 Nitro Series gas shocks or FOX 2.0 Performance Series or FOX 2.5 Performance Elite shocks for improved damping
• Provides clearance for up to 37-inch tires

Specifications

• Lift Height: 4.5 inches
• Vehicle Fitment: 2007–2018 Jeep Wrangler JK 4-Door
• Pivot mount material: 1/4-inch thick steel
• Includes braided stainless steel brake lines
• Includes front track bar relocation bracket, rear frame-mounted track bar relocation bracket, pitman arm, and sway bar links/drop brackets
• Long arm brackets: 1/4-inch steel frame-mounted
• Lower flex arms: heavy-wall tubular with oversized greaseable polyurethane bushings
• Upper flex arms: solid stock, adjustable
• Coil springs: full-length, progressive-rate, high-tensile steel Pro-Ride series
• Bump stop extensions: 3 inches

Installation

• Estimated Time: 12 hours
• Difficulty: Moderately Easy
• Tools Required: Basic Hand Tools, Torque Wrench, Drill / Bit Set, Jack / Jack Stands, Pitman Arm Puller, Welding Equipment

Important Notes

• Will not fit 2WD models.
• The front and rear driveshafts are maxed out at full droop.
• The front driveshaft boot can contact the transmission pan at extreme articulation on some models.
• Replacement of the front and rear driveshafts are recommended.
• Exhaust modification may be required.