Rear shock failure
Have a 2003 freightliner DP chassis. Both rear shocks were 7 years (70000 miles) when I noticed that both shocks had the piston rod become disconnected inside the shock rendering them useless. Anyon...
Forum Discussion
I think you answered it. When you said you take the rear wheels off the ground at times to level it. You can get away with this if you have a spring mounted axle but with air bags something is going to give in your case the shocks. You could do like the off road racers and put in limiting straps that attach to the frame and axle to take the weight of the axle when the wheels are taken off the ground.
