RoadActive Suspension 4611-HD rear leaf spring upgrade for Chevy GMC 1500 1990-2024
(RAS®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2024
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(RAS®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2024

Key item features

  • automotive-suspension-leaf-springs
  • Genuine (RAS®) RoadActive Suspension® HD system is designed to strengthen and stabilize rear leaf springs for trucks carrying heavy loads or towing. Each kit is engineered, manufactured and assembled in North Carolina with a focus on durability, performance, and reliability. Since 1998, RoadActive Suspension® has provided solutions that improve stability, reduce squat and sway, and extend the life of leaf springs.
  • Reduces Squat & Bounce – Reinforces rear leaf springs by up to 50% for superior towing and hauling performance and improve squat by up to 2-3’’
  • 3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.
Current price is $589.00
Price when purchased online
  • Free shipping
  • Free 90-day returns

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Customer ratings & reviews

4.8 out of 5 stars
stars352 ratings352 reviews
How item rating is calculated
  1. 5 stars87% (305)
  2. 4 stars9% (30)
  3. 3 stars3% (10)
  4. 2 stars1% (2)
  5. 1 star1% (5)
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Showing 1-3 of 352 reviews

Nov 19, 2025
James R.
5 out of 5 stars review

Absolutely love! the RAS system. I pulled a 33ft, 9000 lb travel trailer with my 2018 silverado 1500 4x4 high country 6.2 litre short box truck over 2000 miles. It pulled amazing! The RAS system took out all the squat. No squirrelly or squishy feeling over bumps or corners. It doesn't affect the trucks ride when unloaded, actually feels like it rides better. It does lift the back up a little, but looks fine. It truly is a set it and forgot it system. Unlike air bags. Would highly recommend!

Review from roadactivesuspension.com
Helpful?6B9Z1ZZOVWOW18376161453
Sep 28, 2025
Larry F.
5 out of 5 stars review

2019 GMC Sierra 1/2 ton. Kit ID: 4611-HD. Measuring from the top of the tire to the wheel well I gained 3 inches of lift. After hooking up my 25' Outback Travel Trailer I still had a net gain of 1 inch of lift. This kit took all of the squat out and performed extremely well on the wash board roads that I traveled on with the trailer! Well done RAS! Easy installation, fast shipping and EXACTLY what I needed for my tow rig.

Review from roadactivesuspension.com
Helpful?6B9Z1ZZOVWOW18376161453
Sep 19, 2025
shawn w.
5 out of 5 stars review

So far this upgrade is amazing. The rear end feels stiffer, smoother, and the rolling on corners is gone. I carry a lot of tools daily for my job (carpenter) inside a drawer system in the bed and the sag from the weight is completely gone. 100 percent would recommend and will be installing on future trucks.

Review from roadactivesuspension.com
Helpful?6B9Z1ZZOVWOW18376161453