If you’re looking to clear larger tires, level out your stance, or handle the added weight of armor and gear without sacrificing the ride quality of your 6th Gen 4Runner, the Dobinsons IMS (Internal Monotube) Lift Kit is the professional choice.

The IMS series is designed to bridge the gap between entry-level twin-tube shocks and high-end remote reservoir race kits. It provides the superior heat dissipation and damping consistency of a monotube design in a package that is perfectly suited for daily driving and technical trails alike.

The Internal Monotube Advantage
Unlike standard twin-tube shocks that can foam and fade during long stretches of washboard logging roads, the Dobinsons IMS features a massive 50mm–60mm body and a high-flow CNC machined piston.

• Greater Oil Capacity: The larger monotube body holds more fluid, allowing the shocks to run cooler and maintain consistent damping during aggressive off-road use.
• Height Adjustable: The front struts feature a threaded body, allowing you to fine-tune your ride height. This is the critical upgrade for leveling your truck after adding a heavy front bumper, winch, or dual-battery system.
• Heavy-Duty Construction: Built with 18mm chrome-hardened shafts and high-quality natural rubber bushings for maximum durability in the wet, gritty conditions of the Lower Mainland.
• Completely Rebuildable: These aren't throw-away shocks. The IMS series is designed to be serviced and re-valved, ensuring your suspension can last the lifetime of your vehicle.

Engineered for Harsh Conditions
We know how the salt and brine regional winters can chew through aftermarket suspension. Dobinsons IMS shocks are finished with a durable powder coat and zinc plating to resist corrosion, making them a reliable choice for rigs that see year-round duty.

Key Features

• 1–3" Lift Range: Achieve the perfect height for 33" or 35" tires (depending on trimming and wheel offset).
• Monotube Technology: High-pressure nitrogen gas and a floating piston prevent cavitation and oil foaming.
• Direct Bolt-On: Engineered specifically for the 2025+ 4Runner chassis with no welding or major modifications required.
• Custom Spring Rates: Choose from a variety of Dobinsons coil options to match your specific weight requirements (Stock, Medium, or Heavy).

What's Included

• 2 Front Coil Springs
• 2 2.6″ IMS Monotube Struts – IMS59-60660
• 2 Rear Coil Springs
• 2 2.6″ IMS Monotube Shocks – IMS59-60441

Pro Tip: With the 6th Gen 4Runner moving to the new TNGA-F global truck platform, suspension geometry is more precise than ever. The IMS kit is the defining factor for owners who want a 'set-it-and-forget-it' high-performance setup. It provides a significantly firmer, more planted feel on the highway while soaking up the mid-sized hits on the trail. We recommend pairing this with Dobinsons' heavy-duty coils if you plan on running a drawer system or a full-sized spare in the back.