Truck Accessories Buyer's Guide
Air Suspension Buyer's Guide: Load Support, Level Rides & Helper Springs
A breakdown of air helper springs, coil-spring helpers, and suspension enhancement systems — for trucks that haul, tow, and carry real weight.
Here's a question worth asking: when was the last time your truck sat perfectly level under a load? Not "good enough" — actually level, with the headlights pointing where they should and the rear axle carrying weight the way the engineers intended? Air suspension products exist specifically to address what factory leaf springs and coil springs can't do alone — adapt dynamically to whatever weight you're carrying. This guide covers air helper springs for leaf-spring trucks, coil-spring helpers for IFS platforms, maximum-duty load systems for serious haulers, suspension enhancement systems that work without any air at all, and the on-board compressor systems that tie everything together. It is strictly about load support, leveling, and ride quality under weight — not lift, not lowering, not street performance. If that's what you're here for, you're in the right place.
Air Helper Springs vs. Replacement Suspension: What's the Difference?
Air helper springs are not a replacement for your factory suspension — they work alongside it. Your leaf springs or coil springs still do the primary job. The air bags or rubber enhancement components supplement your existing setup, adding adjustable load capacity that kicks in when you need it and backs off when you don't. A truck running empty with inflated air bags will ride stiff and harsh; the correct approach is to air down at empty and air up as the load increases. That adjustability is the whole point — it's what separates a truck that handles cargo the same way loaded and empty from one that squats, pushes the headlights into the sky, and handles differently every time you hitch up.
Important clarification for this guide: Timbren's Suspension Enhancement Systems are rubber-based, not air-filled — they function on the same principle (progressive load support) but require no compressor, no air lines, and no pressure management. They're included here because the problem they solve is identical.
Which System Is Right for Your Truck?
The answer depends on your suspension type and how you use your truck. Leaf-spring trucks — full-size pickups and most heavy-duty platforms — are the natural home for air helper springs like Firestone Ride-Rite and Air Lift's LoadLifter and RideControl lines. IFS trucks with coil springs in the front (and some with coil-sprung rears) are better served by Coil-Rite helpers or Timbren SES kits. If you're regularly hauling near or at your truck's GVWR — fifth-wheel towing, commercial payloads, heavy equipment — you should be looking at the 7500XL Ultimate or RED Label Ex-Duty level of product, not the entry-level kits. And if you want to control pressure from the cab or adjust on the fly, a compressor system is the piece that makes that possible.
Air Helper Springs — Leaf-Spring Trucks
Bolt-in air bag kits for trucks with rear leaf springs — the most common air suspension upgrade for F-150, Silverado, Sierra, Ram, and Tundra owners who haul or tow.
Air Lift
Air Spring Kit Air Lift 1000 Air Spring Kit — 1970–1996 Chevrolet C10 The entry point into Air Lift's lineup. Fits inside your existing leaf spring stack and inflates to level a load — no permanent modification required. Sized for classic C10 trucks carrying moderate payloads up to 1,000 lbs of added support. $172.99 Shop Now |
Air Lift
Air Spring Kit Air Lift RideControl Air Spring Kit — 2007–2019 Silverado 1500 The RideControl line is designed specifically for half-ton and mid-size pickups running with the factory leaf spring suspension. Provides improved safety, stability, and ride comfort under load — particularly useful for towing trailers or hauling heavy bed loads on the Silverado 1500. $518.99 Shop Now |
Firestone
Air Helper Spring Kit Firestone Ride-Rite Air Helper Spring Kit Rear — 1988–1998 Chevy/GMC C1500/2500/3500 2WD/4WD Firestone's most widely-installed air helper spring line. Fits inside the factory leaf spring pack and inflates to restore the level, designed ride height under load. Fits all 1988–1998 Chevy/GMC C1500, C2500, and C3500 in both 2WD and 4WD configurations. $520.99 Shop Now |
Firestone
Air Helper Spring Kit Firestone Ride-Rite Rear Kit — 2007–2018 Chevy/GMC C1500 (Not 2015–2018 Denali) Updated Ride-Rite fitment for the GMT900 and K2XX-generation Silverado and Sierra 1500 platforms. Provides up to 5,000 lbs of load leveling support alongside the factory leaf springs. Note: excludes 2015–2018 Denali trim due to trim-specific fitment differences. $595.99 Shop Now |
Firestone
Air Helper Spring Kit Firestone Ride-Rite Rear Kit — 2009–2014 Ford F-150 Raptor One of the few air helper kits engineered specifically for the first-gen Raptor's unique rear suspension geometry. Adds load leveling support for Raptor owners who haul in the bed or tow — without compromising the factory suspension travel. Fits 2009–2014 F-150 Raptor only. $791.99 Shop Now |
Firestone
Air Helper Spring Kit Firestone Ride-Rite Rear Kit — 2003–2012 Dodge RAM 2500/3500 2WD/4WD Designed for the heavy-hauling RAM platform in both 2WD and 4WD. Sits inside the factory leaf spring pack and provides adjustable support when the truck is loaded — preventing squat, improving steering geometry, and keeping trailer hitches at the correct angle. Fits 2003–2012 RAM 2500 and 3500. $628.99 Shop Now |
Coil-Spring Helpers — IFS & Coil-Suspension Trucks
For trucks and SUVs with coil spring suspension — Tahoe, Yukon, Ram 1500 (rear coil), and F250/F350 front axles — Coil-Rite and SlamAir kits provide the same load support without the leaf spring architecture.
Why Coil-Spring Platforms Need a Different Approach
Coil springs are inherently less adjustable than leaf springs — you can't simply add material to them the way you can pack an extra leaf. The Firestone Coil-Rite system installs inside the coil spring itself, inflating to increase spring rate progressively as load increases. Air Lift's SlamAir kits serve a specific niche: trucks that have been lowered and lost effective spring travel, causing the bump stops to engage prematurely under load. Neither of these systems is a replacement coil spring — they're supplemental load support that works within your existing suspension envelope.
Firestone
Coil-Spring Air Helper Firestone Coil-Rite Rear Kit — 2000–2010 Chevy/GMC Tahoe/Yukon Installs inside the rear coil springs of the GMT800 Tahoe and Yukon, inflating to support cargo and trailer tongue weight without changing the ride when running empty. A direct solution for Tahoe/Yukon owners who tow trailers or load cargo into an SUV-chassis platform. Fits 2000–2010. $168.99 Shop Now |
Firestone
Coil-Spring Air Helper Firestone Coil-Rite Rear Kit — 2010–2018 Dodge RAM 1500 2WD/4WD The RAM 1500's rear coil spring suspension rides exceptionally well empty but can lose up to 3 inches of ride height under a full load. This Coil-Rite kit installs inside the coil spring coils, adding progressive support that activates proportionally to the weight you're carrying. Fits 2010–2018 RAM 1500 in both 2WD and 4WD. $209.99 Shop Now |
Air Lift
Air Spring Kit — Lowered Vehicles Air Lift SlamAir Kit — 1999–2017 Chevrolet Silverado 1500 Designed for lowered Silverados that have lost effective suspension travel and ride on the bump stops under load. SlamAir adds back the load-carrying capacity that lowering removes, supplementing the factory springs. Fits 1999–2017 Silverado 1500 — confirm your lowered ride height is compatible before ordering. $643.99 Shop Now |
Maximum-Duty Load Support — Heavy Haulers & Work Trucks
For HD trucks regularly operating at or near GVWR — fifth-wheel towing, commercial payloads, gooseneck trailers. These kits go beyond leveling; they're engineered for sustained high-load performance.
| Product Line | Load Capacity | Key Feature | Best For |
|---|---|---|---|
| Air Lift LoadLifter 5000 | Up to 5,000 lbs | Direct-fit replacement bag for existing leaf spring truck | 1/2-ton and 3/4-ton pickups, everyday towing |
| Air Lift LoadLifter 5000 Ultimate | Up to 5,000 lbs | Internal jounce bumper eliminates contact with frame | Rougher roads, heavy loads, improved longevity |
| Air Lift LoadLifter 7500XL Ultimate | Up to 7,500 lbs | Largest air spring envelope for maximum load range | 1-ton HD trucks, fifth-wheel, commercial hauling |
| Firestone Ride-Rite RED Label Ex-Duty | Up to 5,000 lbs | Extreme-duty construction for sustained heavy use | Fleet trucks, construction, repeated heavy payloads |
| Hellwig Load Pro | Up to 3,500 lbs | Leaf-spring helper with full-time spring rate design | Work trucks needing passive (no-air) load support |
Air Lift
LoadLifter 5000 Air Lift LoadLifter 5000 — 2007–2019 Chevrolet Silverado 1500 (Half-Ton) Up to 5,000 lbs of load-leveling capacity for the half-ton Silverado. Designed to restore proper ride height and steering geometry when hauling heavy bed loads or towing — preventing the squat that shifts weight to the front and reduces braking effectiveness. Fits 2007–2019 Silverado 1500. $584.99 Shop Now |
Air Lift
LoadLifter 5000 Air Lift LoadLifter 5000 Air Spring Kit — 2001–2010 Silverado 3500 The same 5,000-lb capacity LoadLifter platform scaled for the 3500 series and its heavier-duty leaf spring configuration. Prevents suspension overload and maintains proper rear axle geometry when operating at or near GVWR on the Chevy/GMC 3500 platform from 2001 through 2010. $567.99 Shop Now |
Air Lift
LoadLifter 7500XL Ultimate Air Lift LoadLifter 7500XL Ultimate — 2011–2019 Silverado 2500 HD Air Lift's top-tier air spring kit: 7,500 lbs of capacity with an internal jounce bumper that absorbs shock on rough roads without frame contact. The larger air spring envelope handles sustained fifth-wheel and gooseneck loads that would outpace a standard 5000-series kit. Fits 2011–2019 Silverado 2500 HD and 3500 HD. $915.99 Shop Now |
Firestone
Ride-Rite RED Label Ex-Duty Firestone Ride-Rite RED Label Ex-Duty — 2001–2010 Chevy/GMC 2500HD 2WD/4WD The RED Label series is Firestone's extreme-duty construction, built for trucks that haul repeatedly at high payload percentages rather than occasionally. The reinforced bellow design resists heat and fatigue better than standard Ride-Rite kits. Fits 2001–2010 Silverado/Sierra 2500HD in both 2WD and 4WD configurations. $846.99 Shop Now |
Firestone
All-In-One Kit Firestone Ride-Rite All-In-One Analog Kit — 2019–2024 Silverado 1500 2WD/4WD The All-In-One kit bundles Firestone's air springs with a single-path analog compressor system in one box — eliminating the need to source an air management system separately. Plug-in, inflate, done. Designed for the current-generation Silverado 1500 in both 2WD and 4WD; covers 2019–2024 model years. $955.99 Shop Now |
Hellwig
Leaf Spring Helper Hellwig Load Pro LP-25 — 1999–2013 GMC Sierra 1500 (Up to 2,500 lbs) Unlike air bags, the Hellwig Load Pro is a passive leaf-spring helper — no compressor, no air lines, no inflation required. The full-time spring rate design engages progressively as load increases. Up to 2,500 lbs of added level load capacity for 1999–2013 GMC Sierra 1500 work trucks. Note: sold without mounting hardware; order mounting kit separately if needed. $484.99 Shop Now |
Hellwig
Leaf Spring Helper — HD Hellwig Load Pro LP-35 — 2011–2018 GMC Sierra 2500 (Up to 3,500 lbs) The LP-35 is Hellwig's heavy-duty passive helper spring — a 4-leaf stack rated to 3,500 lbs that installs into the factory rear leaf spring pack without air or compressor hardware. Powder-coated for corrosion resistance; ideal for 2500 HD trucks doing consistent heavy work where simplicity and reliability matter more than adjustability. $596.99 Shop Now |
Hellwig
Leaf Spring Helper — Silent Support Hellwig Pro Series — 2015–2020 Ford F-150 (Up to 2,500 lbs) Hellwig's Pro Series uses an over-axle mounting design with a Silent Support System that eliminates the squeaking and clunking common in some leaf helper installs. Rated up to 2,500 lbs of level load capacity for the F-150 — useful for owners who haul tools, equipment, or sled trailers without an air system. Fits 2015–2020 F-150. $543.99 Shop Now |
Hellwig
Leaf Spring Helper — Light Duty Hellwig EZ Level 1000 — 2015–2022 Chevrolet Colorado (Up to 1,000 lbs) Sized for the mid-size market, the EZ Level 1000 is Hellwig's entry helper spring for Colorado owners carrying moderate payloads — tool boxes, recreational equipment, occasional towing. Powder-coated with all hardware included; rated to 1,000 lbs of additional level load capacity. Fits 2015–2022 Chevrolet Colorado. $339.99 Shop Now |
Suspension Enhancement Systems — No Air Required
Timbren's SES and Active Off-Road Bumpstop systems use progressive-rate rubber springs to solve the same load problems — with no compressor, no air lines, and no maintenance. Install and forget.
How Timbren SES Works — and Why It's Different
A Timbren Suspension Enhancement System replaces the factory rubber bump stop with a hollow, progressive-rate rubber spring called an Aeon spring. When the truck sits empty, the Aeon spring makes no contact with the axle — you get the full factory ride. As load is added and the suspension compresses, the Aeon spring begins to engage progressively, adding support proportional to the weight. It's not adjustable by pressure the way an air bag is, but it requires zero maintenance, can never leak, and installs without drilling or cutting. The Active Off-Road Bumpstop variant adds a coil spring element specifically for trucks that travel on rough terrain under load — providing more controlled suspension travel where the factory bump stop would otherwise cause a harsh bottoming impact.
Timbren
Suspension Enhancement System Timbren SES Front — 2007 Chevrolet Silverado 1500 LT Replaces the front factory bump stops with Timbren's progressive-rate Aeon rubber springs. Firms up the front end proportionally when hauling heavy bed loads or running a snowplow — without affecting the empty ride. No air, no fittings, no compressor; installs with basic hand tools. Confirm fitment to your specific Silverado 1500 year and trim. $299.99 Shop Now |
Timbren
Suspension Enhancement System Timbren SES Rear — 2011 Chevrolet Silverado 2500 HD The rear SES kit for the 2500 HD adds supplemental load support at the rear axle — particularly valuable for fifth-wheel and gooseneck operators who need the rear of the truck to remain level under tongue weight without the complexity of an air system. Confirm fitment to your specific year and configuration before ordering. $299.99 Shop Now |
Timbren
Suspension Enhancement System Timbren Suspension Enhancement System A multi-application SES kit covering a wide range of truck and van platforms. Uses the same progressive-rate Aeon hollow rubber spring technology as the vehicle-specific kits. Check fitment compatibility for your specific application — available in both standard and high-capacity versions to match your payload needs. $441.99 Shop Now |
Timbren
Active Off-Road Bumpstops Timbren Active Off-Road Bumpstops Front — 2015 Chevrolet Colorado LT 4WD The Active Bumpstop adds a coil spring element over the Aeon rubber base — providing controlled progressive resistance as the suspension compresses during off-road travel under load. Prevents the harsh bottom-out that destroys factory bumpstops on rough terrain. Fits 2015 Chevrolet Colorado LT in 4WD; confirm your trim and drivetrain. $299.99 Shop Now |
Timbren
Active Off-Road Bumpstops Timbren Active Off-Road Bumpstops Rear — 2015+ Chevrolet Colorado w/ U-Bolt Flip Kit Rear Active Bumpstop kit for the Colorado, bundled with a U-bolt flip kit to optimize the mounting position for maximum suspension travel benefit. The coil spring over Aeon design gives the rear suspension more controlled resistance under load on uneven ground — preventing bottoming without sacrificing empty ride quality. Fits 2015 and later Colorado. $441.99 Shop Now |
Timbren
Active Off-Road Bumpstops Timbren Active Off-Road Bumpstops Rear — 2017 Ford F-150 Raptor Purpose-built for the Gen 2 Raptor's high-travel suspension. Adds progressive bumpstop resistance that engages before the factory rubber contact, smoothing out the hard landings that come with high-speed off-road driving under load. Fitment specific to the 2017 F-150 Raptor — verify your model year before ordering. $299.99 Shop Now |
On-Board Compressor & Control Systems
Air springs are only as useful as your ability to adjust them. These compressor and management systems give you pressure control — from a manual gauge under the hood to wireless adjustment from inside the cab.
Air Lift
Air Management — In-Cab Gauge Air Lift Load Controller II — Single Gauge with LPS (5 PSI Min.) Single-path in-cab gauge system with a low-pressure switch that alerts you when air spring pressure drops below 5 PSI — preventing you from driving on a deflated bag without realizing it. Manages one air circuit; pair with any Air Lift air spring kit that uses a single inflation path. $406.99 Shop Now |
Air Lift
Air Management — Wireless Air Lift WirelessAir Control System V2 Wireless in-cab control for any brand of aftermarket air spring — no Schrader valve, no compressor under the hood you have to reach for. The V2 system includes an on-board compressor that auto-inflates or deflates based on your target pressure, adjustable from a wireless remote inside the cab. Compatible with any air spring setup using the standard air fitting. $940.99 Shop Now |
Firestone
Air Management — Dual Compressor Firestone Air-Rite Air Command II — Heavy Duty Dual Pneumatic Gauge Kit Dual-path pneumatic control system that manages each air spring independently — critical for trucks running uneven loads, towing with an off-center hitch, or operating on uneven terrain where side-to-side leveling matters. Mounts in-cab; heavy-duty construction rated for motor home, tow truck, and off-road applications. $1,038.99 Shop Now |
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