SAY GOODBYE TO SQUAT, BOUNCE, AND SWAY

Since 1998, RoadActive Suspension has delivered the perfect balance of improved load handling, reduced squat, dampened bounce, and a smoother, more controlled ride. Trust only RAS® labeled products—engineered, tested, proven, and Made in the USA.

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Find the right kit for your vehicle.
chevrolet
  • 1500 Silverado
  • 2500 Silverado
  • 3500 Silverado
  • 1500 Cargo Van
  • 1500 Passenger Van
  • 1500 Suburban
  • 2500 Avalanche
  • 2500 Cargo Van
  • 2500 Passenger Van
  • 2500 Suburban
  • 3500 Cargo Van
  • 3500 Passenger Van
  • Blazer
  • Blazer K5
  • Colorado
  • Silverado High Country
  • Tahoe
  • S 10
chrysler
  • Town N Country
dodge
  • 1500 ProMaster
  • 1500 Ram Cargo Van
  • 1500 Ram Passenger Van
  • 2500 ProMaster
  • 2500 Ram Cargo Van
  • 2500 Ram Passenger Van
  • 3500 ProMaster
  • 3500 Ram Cargo Van
  • 3500 Ram Passenger Van
  • Caravan
  • D100 Ram
  • Dakota
  • Ram 2500
  • Ram 3500
  • Ram 1500
ford
  • Bronco
  • Bronco li
  • E 150 Cargo Van
  • E 150 Passenger Van
  • E 250 Cargo Van
  • E 250 Passenger Van
  • E 350 Cargo Van
  • E 350 Passenger Van
  • Excursion
  • Explorer
  • Explorer Sport
  • Explorer Sport Trac
  • F 150
  • F 250
  • F 350
  • Ranger
  • Raptor
  • Transit 150
  • Transit 250
  • Transit 350
gmc
  • 1500 Cargo Van
  • 1500 Passenger Van
  • 1500 Sierra
  • 1500 Suburban
  • 2500 Cargo Van
  • 2500 Passenger Van
  • 2500 Sierra
  • 2500 Suburban
  • 3500 Cargo Van
  • 3500 Passenger Van
  • 3500 Sierra
  • Canyon
  • Jimmy
  • Jimmy K5
  • Jimmy S15
  • Sierra Denali
  • Sonoma
  • Yukon
lincoln
  • Mark Lt
mazda
  • B Series
mercedes
  • Sprinter Van 2500
  • Sprinter Van 3500
mercury
  • Mountaineer
mitsubishi
  • Raider
nissan
  • Nv 1500
  • Nv 2500
  • Nv 3500
  • Titan
  • Titan Xd
  • Xterra Xe
plymouth
  • Voyager
toyota
  • Pickup
  • Pre Runner
  • T 100
  • Tacoma
  • Tundra
  • Hilux

5 REASONS PICKUP OWNERS CHOOSE RAS®

Simple install. Set-and-forget reliability. Active support when it counts.

Unmatched Ride Comfort

Unmatched Ride Comfort

Same-as or better-than-stock feel and handling, whether empty or fully loaded.

Load Handling & Strength

Load Handling & Strength

Adds up to ~50% effective support; typically reduces squat by ~2–3".

Stability & Bounce Control

Stability & Bounce Control

Cuts sway and isolates bounce for a calmer, more controlled ride.

Fit-And-Forget

Fit-And-Forget

Hassle-free upgrade provides just the right amount of support, without readjustments or hassle.

3-in-1 Upgrade

3-in-1 Upgrade

Benefits of a helper spring, sway control, and traction aid—combined in one simple system.

THE RAS® DIFFERENCE

RAS® helps stop squat, but doesn't stop there. Our tension coil springs engage perfectly with the existing leaf springs to absorb and dissipate load-force-energy. Forget the hassle of air bags or harsh ride quality of other suspension helpers. RAS® gives you the perfect combination of reduced bounce and sway, better load handling, while improving performance and ride quality without a load. No Readjustments. No Hassle.

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HOW RAS® WORKS

Swipe through to see the how RAS® actively supports your truck.

How it works slide
Step 1

Mount

Hooks over the rear leaf eye and axle bracket near the axle—no drilling or welding. Typical install is 45-90 minutes.

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How it works slide
Step 2

Set Tension

Pre-load the RAS® tension coil spring to share the work with your leaf pack. This sets the baseline for support and stability.

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How it works slide
Step 3

Active Support

As load or force increases, RAS® automatically engages in proportion to maintain spring arch, adding support and stability — while keeping ride comfort.

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How it works slide
Step 4

Fit & Forget

No air, no lines, no maintenance. Once installed, RAS works automatically — providing long-term reliability without adjustments

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