Kelderman Stock Height Air Suspension

Kelderman offers air suspension systems on everything from pickup trucks to RVs, trailers, chassis cab trucks, and more. Whether it’s a full 4-link suspension system or our unique 2-stage design, Kelderman has an air suspension solution for your application.

We’ll Get Your Vehicle to the Height You Need

We hear all the time that it seems like new trucks keep getting higher and higher. Many people complain about the lack of space between the bed rail and their fifth wheel. Some people just hate climbing in and out of the truck, even with running boards.

With a front and rear air suspension system and an electronic air control system, you can lower your stock height truck by approximately 4 inches to make getting in and out or hooking up to a trailer much easier!

Kelderman customers standing outside of their truck, which is hitched up to a travel trailer.

Get a Better Ride and Better Towing with Kelderman

Heavy-duty trucks are meant to carry heavy loads. To help with towing, truck manufacturers have given you the same suspension for decades. Leaf springs – and even coil springs – can’t provide the ride or towing abilities that air suspension can. If you don’t tow with your truck and are looking for improved ride quality, or if you use your truck a little harder than you should, Kelderman can make your truck work exactly how you need it to.

From our robust 4-link air suspension system designs that completely remove the factory suspension to our innovative 2-stage air suspension system setups that retain the factory suspension, Kelderman has an answer for you. With over 30 years of experience producing air suspension for heavy-duty trucks, we know what our customers expect from their trucks. We’ll help you find out which is the best kit for you.

We Offer More Than Just Air Suspension for Pickup Trucks.

We have kits available for your chassis cab work truck, trailers, and even your motorhome. Check out the available options for tandem and triple axle leaf spring or torsion axle applications here. The 2-stage front and rear air suspension kits are also available for many different motorhome applications like the Ford F-53, Ford E-Series, Mercedes Sprinter, and more. These rough riding motorhome chassis have been used for decades, but the rough ride doesn’t have to last. Find out what Kelderman has available to make your next trip a smooth one.

Find Kelderman Air Suspension Kits, Accessories, and More for Your Vehicle

Choose your year, make, and model to find Kelderman products that fit your vehicle.

2024+ Ford F-650/F-750 2-Stage Rear Air Suspension

Frequently Asked Questions

Absolutely. If your truck squats under a heavy load and you want to level it out, you’ll love one of our full-air suspension systems. When equipped with one of our optional self-leveling air control systems, your truck will sense a change in weight and pull air from the onboard air tank to return the suspension to the original ride height.

Yes. When equipped with one of our optional self-leveling air control packages, you will have a switch that will activate dump valves to release the air from the air suspension. Typically, a 4-link rear air suspension will allow you to get 3 to 4 inches below “stock height” to help with loading things in the truck bed, hooking up trailers, and more.

The answer depends on which Kelderman product you’re using. Our 2-stage rear air suspension kits can be driven when deflated. At worst, it will ride like a factory truck.

However, a 4-link rear air suspension can only be driven deflated for short distances. With the suspension fully deflated, your truck will be resting on the bump stops within the airbags. Driving on these will result in a very harsh ride. Being fully deflated will also change the position of your axle and the pinion angle of the truck. You can lower the suspension and back under your trailer, park in a garage, etc. but then you will need to return the suspension to “ride height.”

Yes. Your leaf springs keep the rear end of your truck centered while traveling down the road. If you remove your rear leaf springs, you need a suspension that will keep the suspension in place. Our 4-link suspensions use adjustable trailing arms, as well as an adjustable panhard bar, to keep the rear end from moving forward and back, as well as side to side.

We offer 2-stage front air suspensions for many four-wheel drive trucks and several two-wheel drive applications. These will typically remove the coil springs from the front suspension in favor of a full-air suspension system and new shocks. Some kits are also available in a leveling kit version for many trucks to allow for slightly larger tires and wheels.

We offer this suspension for nearly every kind of heavy-duty truck. These work on two-wheel and four-wheel drive models. We also have our general medium duty air suspension kit – a very popular option for Internationals, Freightliners, etc. – for a class 6 or 7 truck with a 34-inch frame rail.

Your truck still features the leaf spring suspension, so you will still be able to tow to the factory ratings. Our 2-stage air suspension will simply provide you with a better ride while the leaf springs handle the towing duties.

Our air suspension framework will bolt to the end of the truck and then attach to the factory leaf spring pack. The leaf spring shackle hanger is removed during installation, so the rear of your leaf springs are now mounted to a moving air suspension framework. This provides additional travel for the leaf springs, resulting in a smoother ride. The design also allows the harshness of the bumps to be absorbed by the bags before being transferred onto the leaf springs.

Helper bags are placed directly on the leaf springs or axle in conjunction with the factory leaf springs to help with load support. You won’t see an improvement in ride quality unless you alter the leaf springs in some way.

You should look into our 2-stage air suspension systems. Instead of improving the towing and ride quality like a 4-link rear air suspension, kits like a 2-stage rear air suspension are designed only to improve the ride quality.

Testimonials

“Had a single stage air ride on my F-350 installed at Kelderman’s facility yesterday. Drove my truck down from Minneapolis, and the ride was torture. Drove home two days later, and the ride was a dream. Kelderman’s is a top quality manufacturer with superior workmanship. If you want air suspension for your truck, these are the people to see.”

Doug Stanley

“Kelderman Manufacturing installed their air suspension unit along with a steering stabilizer on my 2016 Winnebago Sunstar with a Ford F53 chassis. After the installation when we got back on I-80 I could tell the difference immediately. The ride and steering was noticeably improved. I am planning to return to Kelderman Manufacturing to have the rear air suspension installed along with a front and rear stabilizer.”

Jeff Oppenheim

“This system has been an absolute game changer for our fifth wheel. 20,000 pounds rolling down the road on shackles, equalizers, and leaf springs was just not safe with the record the RV industry has had with frame materials and shoddy welding. Thank you for everything you guys do! 

Five Star Nomadic

“We haul very close to our max GVWR on a daily basis seeing 5 to 8 dealers a day so the truck experiences a work load on a daily basis. Before the Kelderman suspension was added you could feel so much of the road. After we added the Kelderman it feels as if we are on a cloud. It was amazing to me that while we felt like we were on a cloud, the truck, for its weight, handles great!! Great job Kelderman!! This type of workmanship is why we are coming back to put your kit on our 44’ New Horizon Toy Hauler.”

Brad Ekstam

“Big thanks to Kelderman for an awesome product. We installed their (four-link rear kit) on a truck for the USMC. We will definitely be using Kelderman products again in the future!”

Kenny Belt

Wit’s End Fabrication

“We added the Kelderman Air Suspension to a new Turtle Top Limo Bus built on a Ford E-450 chassis. I have demonstrated this bus to three people with great results. It virtually eliminates all of the bumps that you get on I-1 between Slidell and New Orleans. This road is one of the worst and it really made a difference. The customers that rode with me could not believe the difference that it made. We use other ride enhancements, but nothing close to this system. I can’t wait to put this system on a paratransit bus for a high end retirement home.”

Sam Gibson

“Night and day difference (in ride quality). It rides about the same as a 2500 does now. Maybe between a 1500 and a 2500. It’s definitely better than the 2007 3500 I had (Ram 5500 front and rear air suspension).”

Bill Leider

“I had previously installed Mor/Ryde and Koni shocks on my 2010 F53, but this is so far superior. We just had install done on our new WInnebago and love to drive it. The ride is beyond fantastic. (Ford F53 Front Air Suspension)”

Bob West

Shop Our Stock Height Products

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