Progressive STR46 Series 2.0" Smooth Body Shock

2018–2026 Jeep Wrangler JL 3.5-4" Lift

Part #: 46-2008

Overview

The Progressive STR46 Series 2.0" Smooth Body Shock is engineered specifically for the rear suspension of Jeep Wrangler JL models from 2018 through 2026 equipped with 3.5 to 4-inch lifts. Designed to enhance ride quality and handling, this shock absorber incorporates Progressive Suspension’s patented FST (Frequency Sensitive Technology) to deliver a smoother, more controlled driving experience across a wide range of terrains and driving conditions.

Ideal for Jeep enthusiasts seeking improved off-road capability without sacrificing on-road comfort, the STR46 Series shock dynamically adjusts damping in real time, reducing harshness and improving vehicle stability. Whether tackling rugged trails or cruising city streets, this shock provides consistent performance tailored to your Wrangler’s lifted suspension setup.

Key Features

The STR46 Series shock stands out with advanced technology and thoughtful engineering designed to optimize suspension performance for lifted Jeep Wranglers:

• Patented FST Technology: Automatically adjusts damping curves based on terrain and driving conditions for a smoother ride.
• Optimized for 3.5-4" Lifts: Specifically tuned to complement lifted Jeep Wrangler JL suspensions, maintaining proper geometry and control.
• Durable 2.0" Smooth Body Design: Provides increased strength and resistance to harsh off-road environments.
• Improved Ride Comfort: Reduces vibration and harshness for enhanced driver and passenger comfort.
• Enhanced Handling and Stability: Maintains better wheel contact and control during off-road maneuvers and on-road driving.
• Corrosion-Resistant Finish: Built to withstand exposure to mud, water, and debris common in off-road use.
• Direct Fit Replacement: Designed for easy installation without the need for modifications.

Construction & Design

The STR46 Series shock features a robust 2.0-inch smooth body construction crafted from high-quality materials to endure the rigors of off-road driving. The shock’s internal valving and piston assembly are engineered to work seamlessly with Progressive’s FST system, allowing the shock to adapt instantly to changing terrain. The smooth body design not only enhances durability but also reduces the chance of debris buildup, ensuring consistent performance over time.

Every component is precision-machined and assembled to meet strict quality standards, providing long-lasting reliability and consistent damping characteristics. The corrosion-resistant finish further protects the shock from environmental damage, making it a dependable upgrade for lifted Jeep Wrangler JL owners.

Installation & Fitment

This shock is a direct bolt-on replacement for the rear suspension of Jeep Wrangler JL models from 2018 to 2026 with 3.5 to 4-inch lift kits installed. Installation requires standard hand tools and basic mechanical knowledge. No special modifications or additional components are necessary, allowing for a straightforward upgrade that restores optimal suspension performance and ride quality.

For best results, it is recommended to replace shocks in pairs and to verify compatibility with your specific lift kit and suspension setup prior to installation.

What's Included

• One Progressive STR46 Series 2.0" Smooth Body Rear Shock
• Installation hardware (if applicable)
• Product instructions and warranty information

Ideal For

This shock absorber is perfect for Jeep Wrangler JL owners who have installed a 3.5 to 4-inch lift and want to improve their vehicle’s ride comfort, handling, and off-road capability. It suits daily drivers, weekend adventurers, and off-road enthusiasts who demand a suspension component that adapts dynamically to varying terrain without sacrificing durability or performance.

Progressive Suspension is a long-running performance suspension brand best known in the motorcycle world for shocks, springs, and suspension upgrades built to improve ride control and handling. With product coverage across Harley, metric bikes, and more, Progressive is a common upgrade when riders want a more planted feel, better damping, and confidence under hard braking and cornering.