1993 ATK 406 MX Suspension, Springs and Related Components

Understanding Your Vehicle's Suspension System

Your vehicle's suspension system is one of the most complex and safety-critical assemblies on any car, truck, or SUV. It does far more than simply absorb bumps — it controls how your vehicle handles corners, maintains tire contact with the road, responds to braking forces, and manages the weight distribution of heavy loads. Whether you drive a daily commuter, a weekend off-road rig, or a hard-working pickup that hauls and tows, the condition and calibration of your suspension directly affects both safety and driving enjoyment.

Suspension systems are made up of dozens of interconnected components, each playing a specific role. Suspension control arms serve as the primary link between the vehicle frame and the wheel assembly, guiding wheel movement through its range of travel while keeping geometry precise. Coil springs and leaf springs carry the weight of the vehicle and absorb road impacts — coils are common on independent front and rear suspensions, while leaf springs remain a workhorse solution on trucks and heavy-duty applications. Bushings, ball joints, sway bar links, strut mounts, and hardware round out the system, and worn versions of any one of these parts can introduce noise, uneven tire wear, and unpredictable handling.

Lift Kits, Leveling Kits, and Ride Tuning

For truck and SUV owners looking to go beyond stock, suspension lift kits unlock greater ground clearance, accommodate larger tires, and improve off-road capability by raising the entire vehicle. Suspension leveling kits offer a more targeted solution — they correct the factory rake common on many pickups by raising the front end to match the rear, improving both aesthetics and the ability to run a uniform tire size across all four corners. Both categories require careful matching to your specific vehicle and intended use, whether that's trail running, rock crawling, or simply a more aggressive street stance.

Top Brands in Suspension, Springs & Related Components

Moog Chassis Parts is widely regarded as the benchmark for replacement suspension components. By constantly introducing design enhancements that extend product life or simplify installation and replacement, Moog has earned its reputation as the chassis industry's problem solver for over 100 years. Their catalog spans control arms, ball joints, tie rod ends, sway bar links, and more, covering passenger cars through heavy-duty trucks.

Air Lift is the go-to name in adjustable air spring suspension. With a full line of adjustable air spring kits, including the LoadLifter 5000 and Air Lift 1000 Kits, as well as over 450 vehicle fitments, Air Lift is the solution to squat. An air suspension system can either work with or replace your existing suspension, keeping your vehicle level and stable — by adjusting the air pressure, you can create the ride you want, whether you're hauling gear, towing a trailer, or just cruising light.

Skyjacker Suspension is a respected name in lift systems for trucks and off-road vehicles, offering a broad range of lift kits and leveling solutions engineered for serious terrain use and proper alignment geometry.

Dorman brings an extensive catalog of replacement suspension parts — including complete control arm assemblies, strut rods, and hardware — making it a practical choice for OE-style repairs across a huge range of domestic and import vehicles.

Energy Suspension specializes in performance polyurethane suspension components. The company works with a proprietary form of polyurethane produced and constantly improved by in-house chemists, which has allowed it to become known by customers as having the best polyurethane suspension components on the market. Their flagship HyperFlex bushing kits are a popular upgrade over factory rubber for drivers seeking tighter handling and longer component life.

What to Consider When Shopping Suspension Parts

• OE Replacement vs. Performance Upgrade: Decide whether you need a like-for-like factory replacement or an upgrade that improves handling, load capacity, or ride height.
• Vehicle Application: Suspension geometry is highly vehicle-specific — always verify fitment by year, make, model, and trim before ordering.
• Material: Rubber bushings offer quiet, compliant factory-feel; polyurethane bushings provide greater durability and handling precision for performance builds.
• Lift Height & Alignment: Any change in ride height typically requires a subsequent wheel alignment and may demand additional correction components such as cam bolts or extended control arms.
• Complete System Thinking: Suspension components work together. Replacing worn parts in one area while ignoring adjacent worn components can limit the improvement — and may accelerate wear elsewhere.