Firestone Coil-Rite Air Helper Springs - Rear Axle
This item does not fit your vehicle
2008 Ford Edge
These items fit your vehicle
2008 Ford Edge
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
A heavy trailer or bed load can make the rear end sag, throwing off braking and steering. Firestone Coil-Rite Air Helper Springs fit inside your existing rear coil springs to keep your vehicle level and steady under load. With a load-leveling capacity of at least 500 lbs (at most 2,000 lbs), they help maintain even weight distribution and level headlight beams for safer handling. By working with your stock suspension, they reduce strain on the rear axle and prevent bottoming out when hauling or towing.
Every load is different, and these air springs let you dial in support to match. Adjust air pressure manually between 5 psi and 70 psi using individual inflation valves for side-to-side leveling on off-center loads. Add air when towing or carrying heavy gear to firm up the rear suspension, or drop to minimum pressure for a smooth ride when unloaded. The adjustable setup gives better balance, improved control, and less bounce no matter what you’re hauling.
When you hit uneven pavement or rough job sites, the Coil-Rite air springs absorb road shock before it reaches the frame. This added cushion helps your suspension handle bumps and dips while keeping the tires planted. The result is better steering response, more consistent braking, and a comfortable ride even under heavy loading or adverse road conditions.
Firestone designed these Coil-Rite springs from elastic polyurethane that holds up to constant flexing and changes in temperature. The material resists wear, cracking, and leaks so you can trust them for years of use. Each kit includes the springs, hardware, air line, brackets, and valves needed for a no-drill installation that fits right into your existing coil spring seats.
The construction material of the fittings may vary.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
James
1/25/2025
It’s functioning as expected. I’m using it whenever I connect my trailer to the truck. It’s cumbersome to install, but works fine.
Jerred H.
1/25/2025
Bri
9/13/2021
Still going strong and doing its job. I would definitely recommend and buy again.
Jason W.
1/13/2014
How big of a trailer are you towing with your Ram and did this kit help?
Charles
1/23/2014
The kit was okay for one trip. The lines keep coming off then I lose air. I have had to fix the lines four times now I gave up, dont know if there is a real fix to this.My trailer is 18 feet.Any help would be appreciated.Thank you.
Patrick B.
2/4/2014
Harry
10/21/2022
The Firestone airbags have been working quite well since they were installed, and have performed as expected. You just have to get used to monitoring the air pressure once or twice a week as there are minor air leaks that you have to contend with.
Do you have a question about this Vehicle Suspension?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Victoria H.
2/20/2025
Hi Dean, that is great to hear! Nick is pretty awesome, I will let him know you gave him a shout out! We will be here and ready to help whenever your ready for your next project!