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Vehicle Suspension with RAS helper springs for confident hauling
Dial in your stance and control when hauling. RAS helper springs reduce squat and body roll, work smoothly with a weight distribution hitch, and can be adjusted to match your typical load; they may raise the rear about 1-2". Choose standard or heavy duty to balance support and unloaded ride.
Yes, RAS works well alongside weight distribution and sway control. Users reported improved stability and a level tow when paired together. Set up your hitch first so the truck sits close to level, then adjust the RAS pre-load to minimize squat. RAS is maintenance free—no airing up or down—so it's convenient for frequent towing.
RAS can raise the rear about 1 - 2" and give the truck a rake. Unloaded ride can feel similar on some trucks, but the heavy duty option may feel stiff when not towing even at the lightest pre-load. If that's a concern, consider the standard option and use the included pre-load adjustments to fine tune. Check that both sides are matched left and right after install.
Yes, installation is straightforward for a DIYer. Tires often do not need to come off, and installs can go quickly with basic tools or a lift. Use the supplied instructions to set initial pre-load and recheck after a short drive. If your vehicle isn't listed in the printed guide, use the universal instructions and verify placement before tightening. Match pre-tension side to side.
Yes, RAS helper springs can reduce rear sag and help stabilize body roll while towing. Several installs showed the truck sitting level with the trailer and less drop at the hitch. Set your weight distribution hitch tension correctly, then dial in the RAS pre-load. Expect a bit of rear lift, which can create a visible rake. Adjust the RAS steps if you add more trailer weight later.
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