Don't Use Air Suspension On Your Class C RV: Understanding Why! 

***WE ARE NOT GIVING THE AIRBAGS AWAY...JUST A JOKE***

1 Helper bags have been put on everything from semis to daily driven tow rigs, and lowboys for years and years 2 If you use a quality bag instead of cheap shit ones they don't expand at the bellows so you get alot more lift with less pressure. 3 Quality air bags can handle up to 200 psi easily such as conitech, slam specialty, or airlift. 4 If 112psi only gives you an inch than your brackets are completely setup wrong or you are running undersized bags. 5 An on board compressor gives you the versatility to only pump them when needed for a heavy load or towing. 6 A lift and heavier springs will make your motorhome ride like dog shit when it's unloaded. 7 Helper air springs aren't meant to be a lift at all. They are meant as suplemental support to maintain stock height when towing or carrying a heavy load. 8 Air bags are a cheap way when set up correctly to drastically reduce body roll that alot of larger rvs have. I'm not saying that a lift or heavier springs, sway bars, shocks or any of that aren't great ideas. I would love to have my 2020 chateau 31' a little higher when I'm out on my dune trips, but to say that someone shouldn't use them is not good advice. If properly setup and quality components are used, an airbag setup can give you a great bang for the buck improvement on your handling and tow capacity.

I wanna see one of these lifted RVs going thru a rocky trail road to see the suspension working and doing its job

I love what you have done to it: black wheels, front bumper, 6 inches lifted. And those are what I want for my ford. Thank you!

Perfection as always! Love the black out. Rear springs look amazing.

Awesome build as usual!!

Great video - very informative. I live in Nova Scotia and recently bought a Four Winds 24F C class on E-450 chassis. I feel like it could use an inch or two more clearance, but mostly would like a better ride. Feels driving a fridge riding on dodge-balls, and rough roads are brutal. Know of any options up here in Canada?

Just wanted to ask again if there is any negative to leaving the heavy duty leaf springs and trackbar on? Also, you did a great series of videos almost 2 years ago showing eh front end instal on a van. Could you guys film the install on a RV both front and rear and can we see underneath how the leaf springs are sitting when back on the ground? Mainly curious where the arch ends up. Slightly arched, flat (doubt it). As I said before, I literally have the same unit as this in a Forester and will be getting this done at some point but probably going to be a little while yet. Thanks

Actually, once you have springs that are the correct strength and can properly support the weight they are carrying, the air bags are a nice add-on that can adjust the ride to your liking. While not really necessary once the springs are the correct rate for the load they are carrying, the airbags allow you to adjust how soft or hard you would like the ride of the rear of the coach to be. I think that is what airbags should be considered for, NOT trying to make up for insufficient spring strength. Adding 3 leaves to the rear of our coach was the best upgrade we ever did. No more swaying, wallowing around on uneven pavement, or that hard crashing feeling/sound of the axle and chassis slamming against each other on bigger bumps with nothing to cushion the impact other than the air in the tires! While a 1200 mile round trip to San Diego plus the cost of Weldtec's upgrade was out of my pocketbook's reach, the rear spring upgrade at a local shop, while certainly not as complete as Weldtec's approach, still provided a huge improvement to our RV driving experience! If you cannot afford Weldtec's "full Monte" upgrade, I strongly suggest you at least have your rear springs brought up to the correct value. It will be the best upgrade you ever did making for a more comfortable and much safer ride!

Decent airbags are not like bricks, but softer than steel springs. Airbags can actually make the ride smoother over rough roads: perceived road bumps depend on how much of the up/down movement of the wheel is transmitted to the vehicle; with stiff leaf springs (extra stiff to carry the weight) much of the bump motion gets through. With part of the axle weight taken by an airbag, and the leaf spring less "compressed" and less stiff, the bump motion is transmitted by a softer spring and by the airbag, which obviously is less stiff than a steel spring and transmits less bump motion. (Imagine hitting something with a hammer, either steel to steel, or steel to rubber; which would be quieter?) Result: slightly smoother ride on rough roads. The air bag pressure should be tested for best result, I have heard 70psi. (Air suspension trucks and coaches use only air-bladders and no metal springs, with an much much smoother ride because the large air bag can move with the road bump without transferring much movement to the axle. Because this suspension so soft, it needs active pressure management to continuously compensate for weight changes and swaying in turns, which makes it expensive).

I've got a 34'Vesta c-class, it has airbags from the factory, is that the same as this setup? Should I look at new springs to get is a little more comfortable to drive?

I just visited you guys an hour ago. Can't wait to get my lift kit installed.

I have a 31' Class C E-450 almost identical to one in video. Where can I get these mods done in Las Vegas? I added sumo springs and Steering stabilizer, but I off rod camp and would like sway bars and shocks.

So I have the Forester version of this RV. I have already done Hellwig bars and track bar. I did shocks and steering stabilizer as well. If I went with your kit I should have no issues losing the shocks and stabilizer for better units. Is there any reason to not keep the heavier sway bars and trackbar? I get that they are not needed with your kit because you actually go for the root of the problem, especially the reverse-arched springs. I don't mind a little stiffer ride if it still helps improve things around a corner. I am not criticizing here, just asking so I understand better. I admit I would never really go that far off-road except when going out west and maybe taking advantage of BLM land. I do like the look and the additional clearance it provides. Been lucky and haven't dragged but those jacks concern me and long low overhang out the back. One last thing. Couldyou possibly try and do a few videos showing the ride difference after the install. I know 's 'hard to do but maybe see if an owner would describe the ride before and after. That always helps to hear too.

Good Stuff & Great Tips 👍 Thanks!

I’m not sure if it would be feasible for me to drive my RV all the way from Iowa to CA to do a black out and lift kit even though I would love you guys to do the work. I have a 2004 Ford 450 Jayco Greyhawk 26SS. I can order just about everything from you guys for my lift kit and black out 👀 look . Other than the grill, tires, blackout coated rims. Any suggestions on finding someone to power coat my wheels. Suggestions on ordering tires and grill.

👍👍👍 Another great video very entertaining

Just watched an older video about rv suspension. I'm at my wits end. I just bought a 2004 Class C rv on a ford E450. It is 20 years old now but has only 27k miles on it. There is a vibration that shakes the whole unit between 37-60 mph. And, it doesn't matter whether its in gear or neutral (coasting), going uphill or downhill. After 60 mph it smooths out. There are air bags inside the coils on the front and rear. I changed out decent tires for a set of $1,600 Michellins and still vibrates. I've paid more than I care to admit for "diagnostic opinions". So, I've been researching possible issues and have came across a few possible plausible reasons. Is it possible that the air bags have changed the drive angle and created an imbalance? If that be the problem, could I just let the air out of all 4 bags? (Not sure why previous owner didn't fix it unless its a new issue). Which makes me wonder if the ujoints have been damaged. Your youtube video just got me thinking. I've also read that welds come off drive shafts also. I'm not sure what to do but would appreciate your input. If I could I'd just cut those freakin bags out and just get better shocks put on. However, I'm not sure what would happen then. I live in Colorado so I cant make an appointment with you.

Very fair and informational.

Appreciate the info on air bags. Thanks!

I ha e 2000 Chevy Chalet. New Bilstein shocks all around and Sumosprings in rear. Still rides Iike there's no suspension. On rocks. Will bigger leaf springs help?

I would love to know if these kits increase load carrying capacity and towing capacity. And if so how much

You'll be working on my Forester in a few weeks! I can't wait to see the final outcome!!! Thanks!

Where can I purchase new spring for my E350 class c rv

Air bags are best used as supplemental or being oversized. All the issues you outline come from running high pressure in an overloaded situation. I have Airbags on my truck camper, I wanted the help to remove a bit of squat, additionally being able to dial in my needs from them for different loading situations. I only run about 30 PSI to achieve this and the truck ride beautifully and is quite stable. My bags are rated for 100psi and tbh if I needed anymore than 50PSI to gain the height I need then yeah new springs and or adding a block would come before adding a heap of pressure.

What’s the tires brand used?

Love it !!

I really like you, seem cool as heck. Good content, seems real honest.

What type of aluminum wheels can fit for a 2019 E450 class C ? I only find Alcoa. Does anyone else make some that fit? Great videos!

I am so saving all my money to get your lift it’s gonna take me awhile but I love you videos and I cannot wait to camp where I want to here in Colorado I have a 2018 thor e-450

Cost ball park on this one? With out bumper and hub cap?

What can I do to improve handling my 2002 days Dodge RoadTrek? Great content on your videos!!

You have the drop for the sway bar, but what if we've already done Hellwig oversize swaybars and want to lift a couple...or few inches?

I have 1981 Chevy 20' class C. It has air bags but one, the air line leaks. Instead of fixing it, id rather do away with them. Can the coach ride fine without the airbags? Im new at this so i havent a clue.

That’s a cool Bus!

I have a forest river e450 chassis with airbags. Towing capacity is currently rated at 7500 lbs. Will the rear spring setup you describe increase towing capacity?

really good video!! I have exactly the same model and I would like to have it as you did in the video. can you tell me where you are located and how much can its modification cost?

Nice job what state are you in I have a 1998 32 foot RV I would like to get a price from you

I never see the cards that you reference in the video. Is something wrong with my RU-vid?

Would like to see chinook on f350 and f450. Also more before and after with test drives please.

Wish you would have showed clearance measurements aft spring install

When are you gonna do a Chevy 4500 Class C RV ? I have a 22’ Sunseeker and it sits too low. It has your favorite air bags on the rear and sits damn near on the bump stops up front. Helllllllllllppp !!!

I do both extra leafs and airbags at 30 psi or so

How much will it cost to up grade my Suspension on my 1973 Dodge Minnie Winnie class C RV.

Will your 6in Kit eliminate body rolls in corners and when Semi-Truck passes by?

Can you help a guy with an1983 chevy G30 25 foot RV...Love the workmanship of your product

What are the names of the rear leaf springs for my 26 foot sunseeker E450.

You doing new grills or sanding an painting,, if latter, maybe a vid on that

I have an RV and I like to also have better shocks on the back of the RV can you help me out with that?

What does the new spring look under load on the RV?

Why will you not recommend the airlift, I was thinking of installing it in my class c motorhome

how much what you did set me back on a coachman m319 yes airbag you can toss away sumoshocks would been better what your springsbeen best

Thought I was looking at suspension input. Not putting a winch up front

I want to do this to my Thor four winds 30d. Where are you guys?

what you think about sumo shock

Very Informative! Good video.

I own this same model ...now I know how mine would look if I use this lift ...really like it! but I'm a chrome type of guy

Please have one of your customers tell us how the vehicle handles after the lift. I have a 2020 31 Château.. I only have 34% of the weight on the front axle. Can your lift fix this?

I want my Sunseeker to look like this!

I will use the airbags to level left to right because the passenger side is always tilted down that’s what I will use airbags for. But if you have anything that will fix that problem well awesome let me see what you got👍

Do you any videos of upgradeing the suspension without lifting it?

I lernd sum gud shit. 👍

Subscribed Thumbs up’d Anything van (edit, would like to see a winch mount that fits behind stock late mode bumper) Subscribed to Growing up Garage

I like your 2 cents and agree. I've built a lot of oilfield equipment and everything is engineered. Spec the suspension to support the coach, build on a bigger truck platform or build a lighter coach, don't add band-aids. Surprised that company hasn't had a lot of tragic failures. That is just criminal to put unsuspecting customers in danger with a system waiting for failure. AAARGH !!!!

You should get someone like vancity vanlife get a lift witch is 100k RU-vid channel for more exposure ✌️

Leave a comment : I wanna see the ultimate build in the worst situation!

I want more mom ride videos. More entertaining.

Lift the Transit. 2”.

Of course you say that nothing is better than your springs because you're selling two strings and new springs are great but if you're not carrying a massive load they're also very stiff and the ride quality goes down

Nice work but I don't think I like that lifted look on an RV. I wouldn't want mine sitting that high.

Don't believe everything on youtube. Especially when the sales people are telling you it's a good idea...

"smash that subscribe button" is the same bull crap all the millennials say in their RU-vid videos and guess what you get a thumbs down every time and no subscription

Less yadda, yadda, yadda. Get to the point.

Looks cool but I bet that rides like shit

stopped watching after 4 min - did he ever get to the point and discuss the title of the video? moving on.