W900 cab lean

Looks like the bag isn’t aired up all the way.

 

I’m not familiar with KW. Probably like all the others. Not much to it. Front bushings, torque/stabilizer bar, rear air bags, leveling valve, and air lines. Could be a pin hole leak in the bag or line to it. Also check the cab/frame torque rod bushings. Though it’s mainly for side to side movement, Leveling valve probably needs adjustment, if not replaced. Add some air, get the bags up, fell around for a leak. Spray soapy water, especially around the base of the air bag. My Classic had all these parts bad. A shop had also replaced the driver side air bag with the wrong one. Made everything worse. Seller couldn’t figure it out. Be safe, use wood blocks when changing air bags. Don’t crush your hand.

 

Usually, KWhopper cabs lean the other way, due to the massive torque of the motors,,, looks like a sleeper air bag issue. Make sure they are both the same. Maybe someone swapped a shorter one, hey, these things happen.

 

Inspect the floor of the cab on that side. The cross member the bag is mouted to may be bent upwards a bit causing the issue. Simply shimming the bottom or top of the bag on its pedestal with washers may solve the issue. The bags no matter how they sit are only going to get around 70 psi air max. And they can only air up in length so much, so Shims may be necessary to help level out the twist.