2026 VN-4 Cab Shocks

What about warranty? Did you pull a shock off and try to extend and compress with your hands or are you assuming they have no dampening left? Do the cab air bags look fully inflated? There may be a pinched air line or the rod for the valve may need to be adjusted.

 

I would want to know what the air pressure is at the bags as they also cushion/dampen. Possible that they are inflated but not enough air. Check the cab ride height. Escalate from dealer to regional or corporate and ask what they can do to help you. Is what you are experiencing a common problem? There were some videos on here last week of bad roads. If you are consistently driving on these type of roads then things will wear out faster.

 

Spray a little oil up in there then lol.