Yes. You loosen the two bolts which hold the leveling valve in place. The bottom hole is oblong to allow adjustments to the ride height to me made. Rotate it counterclockwise, and you'll lower the ride height. Rotate it clockwise, and you'll raise it.
If you don't know what you're doing, best to have someone who does do this for you. With the trailer disconnected, you'll see a lever valve which connects to your rear air suspension. Lifting up on this increases the amount of pressure in the air bags - pushing down on it decreases the air pressure.
if you take apart your head gasket and then replace the oil pump then you might not even have to adjust your suspension
Yes a most suspension trainers should be able to adjust for you weaker left arm. You will just have to adjust the straps to your liking for both arms.
Use your spark plug wrench to adjust your rear suspension
you don't computer controlled, or replace the suspension (shudder) expensive.
Take it to an alignment shop!
there is no way to adjust the ride height other then aftermarket suspension parts
you dont, it is a sealed, (rivets) item
No you can not, at least not with the original or OEM suspension.
The Suspension System
adjustment for airliner suspension with measure tape you can adjust the freightliner airliner suspension from 2 3/8 - 2 7/8 you measure on front axle of rear drivers .driver side from between bottom of axle land and on top of u bolt where it go over axle.procedure too adjustment is too measure it with trailer off tractor 0 weight settn on 5th wheel,if you haul heavy alot the 2 7/8 adjustment or you can go up too 3 in but 3 in is pretty stiff rideing.ok so get air built up till tanks full shut truck off realease brakes and block wheels to adjust height loosen off two nut on valve adjust and measure height tighten bolts and your done but you can start truck set brake air up tanks and dump air bags on drives all the way down then air back up and measure height again always measure same place driver side front axle.if it measure same as when you tightened nuts back up you did it right.
Need to get to them they freezing up from rust