Suspension

Browse our Lift Kits collection for radius arm, 4-link, and coil-over suspension lift kits from BDS Suspension, ReadyLift, Zone Offroad, Rough Country, and Cognito Motorsports. For a factory-rake correction or mild tire clearance, check out our Leveling Kits from ReadyLift, Rough Country, and Zone Offroad. Replace or upgrade your shocks, coilovers, steering stabilizers, traction bars, upper control arms, ball joints, and tie rod ends through our Suspension Components collection — featuring Fox, Bilstein, BDS, Cognito, and Old Man Emu.

Air Springs, Skid Plates, Recovery Gear & Off-Road Essentials

Add rear load support with air spring kits and air bags for trucks from Air Lift and Firestone — available for F-150, Super Duty, Ram 1500, Ram 2500/3500, Silverado, and Sierra for towing and hauling applications. Protect your undercarriage with an RCI skid plate for your F-150 or Tacoma, and keep your truck trail-ready with Winches from Warn, Smittybilt, and Superwinch. For vehicle recovery, we carry Erickson kinetic recovery ropes, tow straps, and snatch blocks alongside Tow Hooks and D-ring shackles from Moose Knuckle and Rugged Ridge. Raise your truck's stance with a Body Lift Kits from Daystar for an affordable alternative to a full suspension lift.

Complete your suspension build with parts from our other collections — add a set of off-road wheels and tires from Wheels, protect your truck's body with fender flares and mud flaps from Exterior, or pair your lift with a cold air intake or exhaust system from Performance. For trailer hitches and towing mirrors, browse Towing. For headache racks and tool boxes for your lifted work truck, check out Commercial. And for LED light bars and auxiliary lighting, browse Electronics.

What's Included in Our Truck Suspension Collection

• Lift kits — 2-inch to 9-inch suspension lift kits from BDS, ReadyLift, Zone Offroad, Rough Country, and Cognito Motorsports including radius arm, 4-link, and coil-over conversion kits with Fox 2.0, Fox 2.5, and NX2 shock options for F-150, Super Duty, Ram 1500, Ram 2500/3500, Silverado, Sierra, Tacoma, Tundra, and Titan
• Leveling kits — front leveling kits, coil spring leveling kits, rear block kits, and adjustable leveling struts from ReadyLift, Rough Country, and Zone Offroad for factory-rake correction and mild tire clearance
• Shocks & coilovers — Fox 2.0 Performance, Fox 2.5 IFP, Fox 2.5 Elite, Fox coilovers with remote reservoir, Bilstein 5100, Rough Country N3/M1, and Old Man Emu Foam Cell Pro for stock-height and lifted applications
• Steering & suspension components — steering stabilizers, traction bars, upper control arms, ball joints, tie rod ends, pitman arms, track bars, and sway bar links from BDS, Cognito, Fox, and Bilstein including Cognito upper control arms for GM HD
• Air springs & air bags — rear load support air spring kits from Air Lift and Firestone for towing and hauling with F-150, Super Duty, Ram 1500, Ram 2500/3500, Silverado, and Sierra
• Body lift kits — 1-inch to 3-inch body lift kits from Daystar for Ram, Silverado, Sierra, GM HD, and Wrangler
• Winches — 2,000 lb to 16,500 lb winches from Warn, Smittybilt, and Superwinch with synthetic rope and wire rope options for trucks and Jeeps
• Tow hooks & recovery gear — D-ring shackles, tow hook covers, kinetic recovery ropes, tow straps, and snatch blocks for off-road recovery and trail use
• Skid plates — aluminum and steel underbody protection from RCI Metalworks for F-150, Tacoma, Bronco, and Silverado

Why Choose Lethal Auto

Every truck suspension part at Lethal Auto is matched to your specific truck's year, make, model, drivetrain, and configuration — including diesel, gas, air ride, and overload spring setups. We offer a lowest price guarantee across Canada and expert support from real truck enthusiasts available Monday to Friday at 306-717-3959. Whether you are building a Cognito lift kit for your Silverado HD or installing Air Lift air bags for towing on your Ram 2500, we help you find the exact fit.

Frequently Asked Questions

Are air bags or helper springs better for towing with a truck?

Air bags offer adjustable load support — you can inflate or deflate them based on the weight you are towing or hauling, which keeps the truck level and maintains proper headlight alignment. Helper springs provide a fixed amount of added support and cannot be adjusted on the fly. For truck owners who tow varying loads, air bags from Air Lift or Firestone provide more flexibility. For consistent heavy loads, helper springs can be a simpler permanent solution.

Do you need a skid plate for off-roading with a truck?

A skid plate protects your truck's engine, transmission, transfer case, and fuel tank from rocks, stumps, and trail debris that can cause expensive damage on off-road terrain. For trucks that see regular trail use — especially lifted F-150s, Tacomas, and Broncos — an RCI or factory-style skid plate is a worthwhile investment. Highway-only trucks typically do not need skid plate protection unless driving on unpaved rural roads with loose gravel and debris.

What is the difference between a lift kit, leveling kit, and air bags?

A lift kit raises the entire truck — front and rear — by 2 to 9 inches using new suspension components, springs, and shocks, allowing for significantly larger tires and increased ground clearance. A leveling kit raises the front of the truck by 1 to 3 inches to eliminate the factory rake and match the rear height. Air bags are installed inside or alongside the rear springs to provide adjustable load support for towing and hauling without permanently changing ride height. Browse our Lift Kits and Leveling Kits collections to compare options for your truck.

Is Cognito or BDS a better lift kit brand for GM trucks?

Cognito Motorsports specializes in GM HD trucks (Silverado 2500HD/3500HD and Sierra 2500HD/3500HD) and is known for heavy-duty steering and suspension components including tie rods, upper control arms, and ball joints designed for the GM HD platform. BDS Suspension covers a wider range of trucks — GM, Ford, Ram, and Toyota — and offers more lift height options with Fox and NX2 shock packages. For GM HD-specific builds, Cognito is the specialist. For a broader selection across all truck makes, BDS provides more flexibility.

What is the difference between a kinetic recovery rope and a tow strap?

A kinetic recovery rope stretches under load and uses stored energy to pull a stuck vehicle free with less jerking force on both vehicles. A tow strap does not stretch and transfers the pulling force directly, which can cause sudden shock loads on frames and tow points. Kinetic ropes from Erickson are safer and more effective for off-road vehicle recovery, while flat tow straps are better suited for short-distance towing on flat ground where stretching is not needed.

Do air spring kits fix rear sag when towing with a truck?

Air spring kits from Air Lift and Firestone are designed specifically to eliminate rear sag caused by heavy trailer tongue weight, fifth wheel loads, or heavy cargo in the bed. They install inside or alongside the factory rear springs and can be inflated to match the load, bringing the truck back to a level stance. This restores proper steering response, braking balance, and headlight alignment that deteriorates when the rear sags under heavy towing loads.