2017 Peterbilt 579 cab level valve

Pete 579 2017.
Bought level valve from Pete. Looked the same but when I installed it with the factory length on the arm, it was exausting air.
I lengthened it some till the air stopped exausting but that made bags air up too much.
Arm is almost level but off a tiny bit.
You can see from pics that can is way too high in back and bags and shocks are over extended.
So did they sell me wrong part?
Is there anything I can do to remedy this? Perhaps swap insides of valve with old parts?
I replaced because air line fitting broke. Valve was still working.
Will my bags blow if I leave them over inflated?

 

I tried. It just goes all the way up or down. Thinking it is faulty.
I ended up putting the old one back on. The top hose connector had broken out. I fiberglassed it and fixed that. But the supply connector started leaking badly. So bought new valve.
But when I hooked it back up to find shy it was leaking, it no longer leaked.
Now I just have to buy another adjustment rod. The plastic junk is only good for about 2 time removing and it won't stay in again.
Thanks Pete ! For plastic parts much like the water inlets on back of engine.

 

Well it is possible that I plugged in the bag line and supply line in wrong. They are right next to each other

 

Well the old one leaking again. But it will do till I get home again and then this weekend I will try the new one again to check it. If it don't work I'll have to order one. No one has them around here. Pete said new England and a couple other NE states had one.