🚛 Elevate your Ford’s backbone with USA-made suspension power!
The RAS® RoadActive Suspension HD 3611-SLHD is a premium rear leaf spring upgrade designed exclusively for 2009-2024 Ford F250 and F350 trucks. Made in the USA with coil tension springs measuring 21.5 inches, it delivers proven durability and enhanced handling by reducing sway, body roll, and bounce. Installation is straightforward, taking just 2-3 hours with no readjustments needed, ensuring a seamless upgrade that maintains or improves ride quality under all load conditions.
| Brand | RAS |
| Auto Part Position | Rear, Top |
| Vehicle Service Type | Truck |
| Exterior Finish | Black |
| Material | Coil tension springs |
| Extended Length | 21.5 Inches |
| Style | Modern |
| Manufacturer | RoadActive Suspension |
| Item Weight | 37.1 pounds |
| Package Dimensions | 30 x 11.61 x 4.69 inches |
| Item model number | 3611-SHD |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 3611-SLHD |
G**G
Definitely a very smooth ride all around.
2015 f-350 crew singles - Gives about a 2" lift with the thicker spacer. Squat with a loaded trailer is very minimal. Unloaded ride is very smooth. The install was pretty easy - but removing the overload spring was a real pain. Overall installing the RAS alone was only 35 to 40 minutes, including tire removal and reinstall. I managed to break off the brake line to the caliper while removing the overload spring (clamp slipped). Everyone who rode in my truck before the RAS and after has mentioned that it is much smoother both unloaded and loaded. I'd do it again, just plan on extra time if you have to remove the overload spring and have a good set of c-clamps.
A**R
Quick easy suspension fix for Heavy Duty Pickup
Very easy install. Fixed the sag on my 2014 F250. Improved the rice on rough country roads.
R**B
makes the truck more stable
i didn't exspect them to makes the truck more stable when not carring a load.also i used the 2 mm shim to ajust them but when i put the 5th wheel on the truck it madethe truck take bumps like i had no spring on the truck. i'm going to back them off to the 1mm setting.
A**R
Awesome equipment.
It really stabilized my 2014 F150 when towing my 32ft trailer. In conjunction with the Bilstine 5100 shocks. I’ll never have a truck again without this set up. Totally worth the investment.
R**T
Five Stars
Awesome
D**R
Highly recommend
I absolutely recommend , noticed a great improvement on the ride
Trustpilot
2 months ago
1 month ago
