Firestone Coil-Rite Air Helper Springs - Rear Axle
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1980 Chevrolet Impala
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Heavy cargo or a trailer can make the rear end sink and throw off handling, braking, and traction. The Firestone Coil-Rite Air Helper Springs fit inside your existing rear coil springs to provide up to 1,000 lbs of load-leveling capacity (rated for at least 500 lbs and at most 1,000 lbs). By maintaining a level stance, they help balance weight across all tires for better steering control, even headlight aim, and more confident road feel when towing or hauling.
Every load is different, and the Coil-Rite kit lets you dial in just the right support. You can manually adjust each side between 5 psi and 25 psi using individual inflation valves to level off-center loads or match changes in cargo. Set higher pressure for heavy loads or trailers to keep the vehicle level; drop back down when unloaded for a smoother, more comfortable ride.
When road conditions get rough or the weight pushes your suspension to its limits, these air springs take up the slack. Working with your existing coil springs, they absorb road shock and soften contact between the axle and frame. That extra cushion helps prevent bottoming out, reduces bounce, and promotes a steadier ride whether you’re towing through mountain grades or running over uneven pavement.
Firestone designed these air springs with elastic polyurethane that stands up to years of hauling and variable loads. The material maintains stability under pressure while resisting wear from repeated compression. Each kit includes the brackets, hardware, air line, and separate valves required for manual inflation so you can get everything installed and ready to perform right out of the box.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Gwendolyn Y.
7/10/2025
Really cool to hear how well the airbags have been working out for you, especially hearing your experience in the past. How's the ride day-to-day when you're not hauling that awesome camper?
Stanley
7/4/2026
Other than a slight leak in the driver’s side that is not any fault of the product, this set up has worked extremely well! I’m very happy with these air bags and would highly recommend them over the AirLift1000 bags as there’s no comparison in quality! These Ride Rite bags are worth every penny!!!
Heather A.
7/30/2026
Thank you so much for taking the time to leave a review and for sharing those awesome photos! I'm really glad Jeremy was able to get everything straightened out quickly and make the exchange process easy. How are the bags working for you so far?
Lazer S.
1/20/2026
Good idea taking the springs off, Joel! These can definitely be a bit of a pain in the butt with all the stuff impeding an easy install. Being able to clean the area is also nice! What are you towing with your Avalanche? Or did you want these more for regular driving?
Mike L.
8/26/2026
Have you tried putting a dishwashing liquid/water combo on the area where the air line joins with the bag? This will make any leaks stand out like a sore thumb. It's extremely important that the air lines are cut precisely at a 90° angle. You can't use angle cutters, because it will crush the air line and it'll always leak....
Mike L.
7/14/2026
I'd make sure that the tubing that goes into the air spring's fittings are cut so they're perfectly square. That is the main culprit when it comes to leaks....
Ethan
6/25/2026
I had to take the right rear airbag and deflated it. I took a piece of mudflap about a quarter inch thick and put it on top of the airbag with a hole in the middle of the mudflap piece that gave more clearance between the car and the airbag valve. Now I have had no leaks for a year. With the least 9000 miles of towing and rough terrain.
Gwendolyn Y.
7/25/2025
That's an awesome shot, Jefferey! Where were you camping at?
Joseph
1/28/2025
After a year, the air bags have been superior in their performance. I have had no issues with them. Still running 20 psi in them when Im towing my trailer, deflating them to 10 psi when not. I see only slight rubbing signs on the bags from the coil springs, but hasnt effected the performance of the bags. Great product. Im very happy with the performance of the bags. Still a great product.
Robin H.
1/28/2025
Brooke M.
4/14/2025
Thanks for posting the photos and for sharing what all you had to do to get them to work! It's what makes your review especially valuable to other readers. Thanks, Daeton
Off2mtns
12/14/2018
Still working great after a year. Knock on wood... no leaks to date. I would consider these essential equipment for towing, and would highly recommend for heavily loaded backcountry travels as well. I did try them near their max pressure on one trip with 5 people, roof top tent, and gear for a week of camping this summer and it was too much and felt very unsafe ped the pressure back to sub-30 psi after driving a few blocks and all was great after that!
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Brooke M.
2/19/2024
I saw your review and wanted to reach out to the manufacturer about this. They said that part # F4186 comes with a 4 inch diameter x 9 inch long Coil-Rite air spring. It is made for use on the 2011 Yukon that have the factory Autoride. If your vehicle has anything other than factory Autoride, that would be the cause of the fitment issue. Let me know what kind of suspension you have and we can go from there!