The leveling valve does have an adjustment, but you have to adjust it when you install it. There is a pin that comes in the box that you use to set the height initially. You hook up the air lines and set the height. Then you take out the pin and mount the valve. Look up the correct height online. If the height measures right but your driveshaft is still off then you have bad bushings or bad springs.

You can adjust your leveling valve with the two screws that hold it on. They have sliders on them to adjust.

It has a small amount of adjustment. If you loosen up the 2 bolts on the back of the valve, you can angle it up or down a wee bit. However, you should still get the adjustment bar as there are multiple other scenarios where adjusting the height of your drive's can help you in a pinch

Thank you for sharing! I'm in a 2005 Freightliner and got the same thing happening!

HEY BROTHER THANK YOU FOR A IDEA YOU GAVE ME I EANNA RAISE MY SUSPENSION TO LINE UP TIRES TO THE CHASSIS.....GOD BLESS YOU I TO HAVE A FRIGHTSHAKER.. 👍🇺🇸🇲🇽

Hey buddy I work on trucks I saw ur vid. If your air bag valve don't work right ur bed will be inflating and deflating as you drive. It will bust up that drive shaft up. If u got vibration at 40mph plus. Might need shaft balance . But could be a hole bunch of stuff from hubs to tires to bushings .. good luck. #Truck city in lake bluff

You may need a high speed alignment. They actually balance the whole front assembly with your drums and pads. Instead of just the rim and tire. It’s works.

I heard you can also loosen the bolts on the leveling valve then move up or down as needed to compensate untill drive shaft is level.

I’m going to try this as well I get vibrations at 45-53 mph 2013 Freightliner I balanced my front wheels it made a slight difference but vibration is still there I will take part off weld 3/8 longer put it back on a test it out I have all tools to do it I will report back with results.

There's a height adjustment where you measure from two solid recommended points. Look it up then measure and set.

Second person who suggested this remedy. Thanks

Thank you very much for your video that was really great a lot help thank you from odessa tx

So when adjusting the leveling valve you should go by the angle of your drive shaft as opposed to a tape measure.

Very helpful video I'm going to try on 07 century

I have a shake whenever I bobtail and drive a crap road highway. the whole truck violently shakes and I have to slow to 35 for it to stop

Brother thank you so much for this information

Thanks for the info I really appreciate it..

Was your vibration coming from the floor and you can fill it in your seat

The frame height is set up by the engineer that designed the truck. Changing the ride height is not advised, please don't do this.

Your heart is good, but the cutting and welding advice is not so much. It is completely adjustable so you can raise and lower your air suspension. Check out Busted Knuckle by Diesel Dr regarding leveling your air ride.

God bless you man,good travels..

Sounds like what I’m experiencing I feel everything I go across and the wind seems extremely rough causing the equipment to look all out wack with the trailer bouncing around

My Prostar might need this aswell!

I’m seeing this late, I just spent 480 to do all this alignment and replaced both my steers 1180

You need to change torque rods and cab stabilizer

I've seen alot of videos like this, I don't like that a oem part would need to be altered. Or are you doing it because you don't want to buy a new one?

You can adjust it without cutting the bar. also you want the power drive "tilted" a bit when unloaded. Just curious, how long after this video did you have to replace the ujoint? :)

Man. I’ve been having the same issue.. only after putting new drives on. Did you recently replace the drives? Was this happening before replacing them?

Great tip 👍

So now that fix can put you oos and your frame is not align with your tires. Your fix is to level the valve not the level rod.

This video helped man thanks👍

Does it vibrate when parked also??????

What about high 13.6 it will go up?

You better fix that air leak first, the longer bar will break the leveling valve at the time your frame went down on air the bar will push up the leveling bar arm, and you can get a damaged valve!

Its a freight shaker its suppose to shake rattle and roll lol

I have a bad vibration when acceleration or going 65+. Steering, side mirrors, gear and the floor is where the vibration is. Anybody can help?

Mine has a vibration when I'm turning left or right, loaded its worse. Anyone have this issue?

How fast do you feel the vibration? At 45 only or more? I have the same problem but my vibration on 45 only!

Thanks

How did it hold up

Hey wassup ma man could you please tell me at what MPH your truck used to vibrating ? I got 2017 Freightliner cascadia evolution well I had some air leak on quick connector fittings the one which goes to air leveling valve and the other right down the air bag but I did fix the air leaks so now no more air leaks well when I drive about 66,67,68,69 my rear drive axle vibrating as soon I got to 70,71,75 it’s just goes away well yesterday I set up my air valve leveling on 3x14 and I had a 16k weight load it’s was driving so smooth and after I drop off my load get another one which was btw 20k 25k weitgh it’s stared doing the same thing I’m really confused I don’t feel any shaking or vibrating on my steer only on my passenger sit shakes a lit bit and my rear drive axle on that MPH that I mentioned Sr please let me know I m really appreciate your time Thanks a lot 🙏 Be safe !

Did your hood wiggle left and right at 45 mph and your left spotter mirror on your hood was wiggling up and down and was your mud flap hanger on your driver side jumping up and down?. and the vibration was coming through your steering wheel???

I'm sure he knows that they're adjustable, therefore isn't necessary to cut it.

What year is it my man

Where u getting vibration while u accelerate or all the time ?

How much do I add ?

That's the problem in my cascadia 2018

Anyone did that? Does it help? I believe to dude but just checking anything else

18 wheelers aren’t 18 wheelers without exhaust smoke stacks. I’m a 90s person I noticed now 18 wheelers don’t have exhaust stacks anymore. The employees that builds 18 wheelers needs to stop listening to their bosses if their bosses are saying we are gonna not put exhaust stacks on 18 wheelers anymore blah blah. Employees need to stand up and don’t be afraid of bosses

subscribe please and hit the like

If it is not shaking or leaking it is not freightliner

I just spent $400 dollars balance my tires 🤦🏻‍♂️🤦🏻‍♂️🤦🏻‍♂️

BINGO

So you put more air on the airbags. That's the solution.

This is bs, no cheap fix at all. Dont deceived your self, replace your shocks if they are older than a one year, and the truck will ride smooth. No shock can survive more than a year, and use only Sascs, no Monroe or yellow garbage.

Copy cat video