4 Inch Radius Arm Lift Kit | Ram 3500 (2025-2026) 4WD Diesel | 3" Block w/ Overload | Nitro Series Shocks | Zone Offroad

Includes a 3-inch rear lift block with overload — suited for trucks equipped with a factory overload leaf spring and those seeking a more elevated rear stance. Paired with Zone Nitro Series shocks featuring a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends for increased strength, self-lubricating seals, a black powder coat finish, and a 2-inch diameter steel body for comfortable, well-controlled performance during daily driving and light off-road use.

Overview

This Zone Offroad 4-inch Radius Arm Lift Kit is designed specifically for diesel-powered Ram 3500 trucks (2025–2026, 4WD). The system improves ride quality, handling, and off-road capability while maintaining on-road comfort. Clearance for up to 37-inch tires provides a more aggressive stance without compromising everyday drivability.

Up front, progressive rate coil springs are engineered to support the added weight of the diesel platform while delivering a smooth, controlled ride. Zone Offroad replacement fabricated radius arms correct caster angle after lifting and improve suspension geometry and long-term durability. A track bar relocation bracket re-centers the axle to ensure optimal steering precision and alignment. Sway bar links and brake line brackets are also included.

In the rear, lift is achieved using a high-strength fabricated lift block combined with longer U-bolts for a secure, reliable installation. Rear shock options are available to match your driving style and terrain. Select either a 2-inch or 3-inch rear block, with or without the factory overload leaf spring configuration, to achieve the stance that best suits how your truck is loaded.

Features

• Zone Offroad replacement fabricated radius arms engineered to correct caster after lifting
• High-strength progressive rate front coil springs for controlled ride quality on any terrain
• Track bar relocation bracket to re-center the axle for optimal steering precision and alignment
• Sway bar links and brake line brackets included
• High-strength fabricated rear lift block with longer U-bolts
• Choice of FOX 2.0 Adventure Series or Zone Nitro Series shocks
• Clearance for up to 37-inch tires
• Available with 2-inch or 3-inch rear lift block, with or without overload configuration

Specifications

• Front Lift Method: Coil Spring
• Front Lift Height: 4 inches
• Rear Lift Method: Block
• Rear Lift Height: 2 inches or 3 inches (variant dependent)
• Total Lift Height Range: 4–5.5 inches
• Shocks Included: Yes (variant dependent)

Installation

• Estimated Time: 7–8 hours
• Difficulty: Difficult
• Special Tools Required: Cut Off Wheel or equivalent, Pitman Arm Puller

Important Notes

• Does not fit gas models.
• Does not work with OEM air suspension.
• Does not fit commercial chassis (cab and chassis).