2003 9400i leveling valve adjustment?

Replaced air bags and the new ones are slightly different as in 3/4” taller, and about the same amount wide. I forgot to check the #### ride height with the old ones‍♂️. Truck has what I believe is IROS suspension, right now I’m measuring like 3.5” from top of U bolt to bottom of stop at the closest to leveling valve.

I understand it needs to be 2.750-3.000, the leveling rod doesn’t look to be adjustable unless I’m mistaken? How is the leveling valve normally adjusted on this set up?
8 of VIN: 93N058085

 

Here is a pic

 

Thanks. I’ve got some conflicting info on height setting. 3” from U bolt to stop, and I’ve got 9” from center of axle to bottom of frame rail. I’m pretty sure it’s IROS suspension. I have test drove it and I got no weird vibrations, it’s 9-1/4” from center of axle to bottom of frame rail but the u bolt measurement is closer to 4”. Not sure what to trust

 

So I need to drop it some?

 

All 4 are brand new and same. The new set of 4 bags are just slightly different in height compared to the old ones.

 

Maybe this will help explain my concerns. Bag on right is new, one on left is old. Seems like when aired up everything was same but the bag looks different. Maybe I’m over thinking it