Pete Air Leaf

Those are wear plates. Mine are trashed. That happens when you are loaded and drop the bags. I bet your plates are old. It took years for that to happen. Those plates take 2 minutes to change out. I’ve been meaning to replace mine but the mood hasn’t struck me yet

 

They aren’t wearing out becuase of your ride height so you are completely fine. When your bags are aired up, they are definitely not hitting the plates during normal driving. I’m off road a lot and sometimes I hit aggressive dips. So in my situation, I’m gonna see more wear. But like I said, then it’s time to undue those two class 10.9 bolts and swap out the plates

 

Ideally they should be the same, but front springs sag over time. We run longer trucks than most and most guys install blocks on the steer axle even on new ones to get the ride height and help with the bump steer.

Someone mentioned air leaf . low air and low low air leaf.
I have never heard of low low , but the ones pictured is air leaf, air trac is heavier duty and bolts in the same frame holes, later model low air does not or even come close.

They make shims to twist the rears a little, that are sometimes needed to get the rears level for air trac, probably do for air leaf too.

 

Your not gonna find an air trac anywhere with identical height clearances anywhere. If you do post pictures so it can be confirmed.

 

I barely know how to turn this thing on and off, so pictures are out of the question. Even if I could, it wouldn't do any good to post pics of mine with air trac, as it does not ride level at all, but is BAD in need of a complete suspension overhaul.
I have an old A model, I hope to get started on this summer or next fall that has air leaf currently, but it will be coming out from under it.

We stretched a friends to 330 last year and added 5 in blocks to his steer along with new springs and load share bags, and it does ride level and drives sweet.

 

One thing is for sure and there is absolutely no mistake about it. If your ride height is off 1/4” to 1/2”, you will no instantly. You will hear that driveline up through your shifter. Ask me how I know. If it’s within spec, you are good to go. If it’s not within spec, and you get up to 50mph, your gonna have alll kinda of vibration and noise. Air trac is like no other and very sensitive to driveline angles

 

Mine does not seem to be near as sensitive as my international on ride height. I have played with it quite a bit trying to get it to ride better.
When I have the log gear on, my pintle hitch is 4 feet behind the rear of the frame, and I sometimes pull a 3 axle tilt deck with equipment loaded forward enough to still get traction on my drives in the ice. I broke a spring last year with a skidder on and it sure let me know the drivelines were in a bind quick.

 

@rank
I have the exact same issues with my 379 air leaf wanting to bottom on the front driver u bolt. I've checked the ride height numerous times. My steer definitely runs lower than the drivers. The last time I had it aligned I had them check the front leaf springs thinking they lost some arch and was letting the front sag. They looked at the angle of the rear shackles and pronounced it on spec.
So I don't know?
I run 11r 22.5's on the drives, and put 12r 22.5's on the steers the last time around to try and level it out a little bit more. I been thinking on adding a leaf spring on the steer to help carry more weight and raise it up a bit more.
I get nervous bottoming out that front axle with permit loads...