RAS HD Suspension Kit for 1973–2010 Ford F-350 | 3611-HD
$589
Get it installed as soon as Wed, Aug. 12
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This item is excluded from all discounts and promotions.
Minimum order quantity of
1
Maximum order quantity of
100
Must purchase in increments of
1
Return Policy
We believe in offering the very best value, quality, and selection. Plus, we want you to enjoy your purchase! In the event you wish to send a product back to us, you may return most unused items for a refund or exchange, minus shipping, within 90 days from the date of purchase unless noted below under exceptions and exclusions. Refunds are issued to the original form of payment, unless returned in store where some exclusions may apply.
Features
Upgrade your Ford F-350’s rear suspension with the RAS HD Suspension Kit—designed to improve towing, hauling, and daily driving performance. This bolt-on RoadActive Suspension system strengthens your rear leaf springs, reduces squat, sway, and bounce, and delivers a smoother, more controlled ride whether loaded or unloaded.
Unlike air bag systems, RAS is fully mechanical and maintenance-free—no compressors, air lines, leaks, or constant adjustments. Each kit includes heavy-duty helper springs for the rear leaf springs, providing progressive support under load while maintaining same-as or better-than stock unloaded ride quality. Installation is quick and easy—about one hour from the box to the road.
*If your truck does have a factory top overload, it must be removed in order to install RAS.
Key Features:
• Fits 1973–2010 Ford F-350 trucks
• Strengthens rear leaf springs for improved load handling
• 3-in-1 system: helper spring, sway control, and traction support
• Reduces rear squat, body roll, bounce, and axle wrap
• Progressive load support for towing and hauling
• Maintenance-free design—no air lines or adjustments required
• Fully assembled for quick, bolt-on installation (~45–60 minutes)
• Proven RoadActive Suspension performance since 1998
Unlike air bag systems, RAS is fully mechanical and maintenance-free—no compressors, air lines, leaks, or constant adjustments. Each kit includes heavy-duty helper springs for the rear leaf springs, providing progressive support under load while maintaining same-as or better-than stock unloaded ride quality. Installation is quick and easy—about one hour from the box to the road.
*If your truck does have a factory top overload, it must be removed in order to install RAS.
Key Features:
• Fits 1973–2010 Ford F-350 trucks
• Strengthens rear leaf springs for improved load handling
• 3-in-1 system: helper spring, sway control, and traction support
• Reduces rear squat, body roll, bounce, and axle wrap
• Progressive load support for towing and hauling
• Maintenance-free design—no air lines or adjustments required
• Fully assembled for quick, bolt-on installation (~45–60 minutes)
• Proven RoadActive Suspension performance since 1998
- Reduces rear-end squat and bounce
- Improves towing and hauling stability
- Enhances overall road handling and control
- Maintenance-free design with no readjustments needed
- Fast, easy installation with immediate performance improvements
Specs
Unit Weight
31.00 lb
Brand
RoadActive
MFG Part No.
3611-HD
800-700-1366
