Dobinsons IMS (Internal Monotube Shock) Suspension Lift Kits are engineered to improve ride control, heat dissipation, and suspension stability compared to standard twin-tube systems. Featuring large 2.2″ monotube shocks with vehicle-specific valving, this kit is designed for daily driving, towing, and moderate off-road use.
The IMS series uses high-pressure nitrogen monotube shocks combined with application-specific coil and leaf springs to deliver consistent damping and controlled handling across varying road and trail conditions. Each component is matched to maintain correct suspension geometry, ride height, and long-term reliability.
IMS Monotube Shocks:
Large 2.2″ (56mm) body for increased oil capacity and cavitation resistance.
Monotube design with high-pressure nitrogen gas for responsive damping.
Precision valving tuned specifically for each vehicle platform.
Hardened chrome 18/22mm piston rod and high-quality seals for durability in extreme conditions.
Features NOK long-life seals to withstand harsh environments
Uses custom-blended FUCHS oil for superior thermal stability and performance
Coil Springs & Leaf Springs:
Vehicle-specific springs available in multiple load ratings to suit different setups—daily driving, towing, or full overlanding builds.
Manufactured from high-quality spring steel, shot-peened and scragged to prevent sagging.
Greaseable Pins and Shackles:
Included in leaf spring setups to enhance articulation and ease maintenance.
Allows smoother suspension movement and longer bushing life.
U-Bolts and Bushings:
Heavy-duty U-bolts matched to spring and axle configurations.
Polyurethane bushings offer improved durability and ride comfort over factory rubber equivalents.
Strut Top Mounts & Hardware (where applicable):
Optional upgraded strut top mounts for easier installation and improved front-end feel.
Includes all necessary hardware for a complete bolt-on installation.
Matched components ensure correct alignment and geometry for safe handling.
Why Choose IMS Shocks:
The IMS Series represents a step up in performance, control, and heat resistance. With a large 2.2″ monotube body and high-pressure nitrogen design, IMS shocks deliver better fade resistance and more responsive damping—perfect for drivers who demand more from their suspension. Whether you’re tackling rough forest roads, carrying camping gear, or building a mild overland setup, IMS offers noticeable improvements over twin-tube systems. They’re great for people who hit the trails more often and want better on-road handling without going full race-spec.
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Note: If you have a single cab, or a 2 Wheel Drive Pre-Runner, contact us first for suspension, otherwise the lift height and ride quality may be different than listed here.
Dobinsons Spring & Suspension™ established in 1953, is largely based on Leaf and Coil Spring Manufacturing and the supply of Suspension Components. With several generations of family ownership and experiences, Dobinsons has become one of the leaders in the Spring Industry in Australia applying the years of knowledge into their products. The success of the business has come about by providing quality products, acquiring and using technical knowledge and having the equipment to perform and provide professional service.
