A Simple Fit-and-forget install
Install Time
Typically 60–90 minutes (2–3 hours for 1-ton trucks with overload spring)
Tools Needed
Basic hand tools, jack, and jack stands
What's Included
Complete kit with all required hardware
Quick Reminder
Read instructions before starting installation
Don't Skip This Step
Properly pre-setting (lengthening) the unit before install is critical.
This step sets the correct tension in the system, ensuring proper fitment, performance, and ride quality once installed.
- Ensures correct engagement under load
- Prevents fitment issues during install
- Delivers proper performance and ride quality
Take your time with this step — it's what makes the system work as designed.
Don't forget — set tension with the suspension unloaded.
Make sure the rear of the truck is lifted with the axle hanging free before setting and measuring tension. This allows the leaf springs to fully extend so you’re capturing the correct arch.
Installation Videos by Vehicle
Don’t see your truck? No problem — most installs follow the same process.
Customer Installation Videos
Watch real installs from customers
Pro Install Tips
A few simple tips to make your install smoother and faster.
Set the correct length first
Make sure the unit is fully extended before installing to ensure proper fitment.
Lift the truck before setting tension
Set tension with the axle hanging free so you're capturing the correct spring arch.
Leave hardware loose until final alignment
Tighten everything after positioning to make installation easier.
Install on level ground when possible
Helps ensure proper alignment and accurate setup.
Take your time on initial setup
Proper setup upfront leads to better performance and an easier install overall.
Re-check after your first drive
Verify everything is properly seated and tightened after initial use.
Install Questions & Fixes
Quick answers to help you install with confidence.
-
The unit is shortened for packaging. Make sure it's fully lengthened before install and test fit it on the leaf springs.
-
Yes — the rear of the truck should be lifted with the axle hanging free when setting and measuring tension. This ensures proper setup.
-
Most 1 ton trucks come with the factory overload spring, which need to be removed for installation of RoadActive Suspension. Removing the overload allows proper fitment and ensures the system works as intended. The RAS® Mega-Duty kit will reduce squat and provide significant improvement vs the factory overload spring.
-
In most cases, yes. Basic tools and a jack with stands are typically all that's needed.
-
That's exactly what this system is designed to address. It helps reduce squat and improve stability under load.
-
No ongoing adjustments are required. It's a good idea to re-check hardware after your first drive.
-
Most installs take about 60–90 minutes. Trucks with factory overload springs may take closer to 2–3 hours.
-
Basic hand tools, a jack, and jack stands are typically all that's required.
-
In many cases, yes — but removing the wheels can make access easier depending on the truck and the rear of the truck still needs raised for installation.
-
Yes, but for 2015-2026 Ford F150 4WD ONLY. These spacers actually slightly displace the factory bump stop to ensure the lip of the bump stop does not contact the RAS axle connecting bracket.
-
This can lead to incorrect setup. The suspension needs to be unloaded to capture the correct spring arch and ensure proper performance.
-
No — the system is designed to work progressively, meaning it supports the truck under load without compromising everyday ride quality.


