New leveling valve. Height adjustment? 1993 Freightliner 3 axle

Rick, on a Peterbilt anyways, the arm of the leveling valve should be level with the lower edge of the frame rail. They also have a guide for the distance in inches that the bag height should be from the bottom of the bag support platform to the bottom edge of the frame rail as well. Different bags for their different suspensions. Hope this helps a little!

 

Need to know what suspension you have. Typically its a measurement between something like bottom of frame or axle stop to the top or centre of the axle housing.

The leveling valve arm will always be level regardless of where you mount the valve or how long/short you make the rod. Its job is to add/dump air from the suspension to maintain that arm in a level position.

 

I got a print off from my local KW service department when I bought a replacement level valve many years ago. It's in the glove box. Everyone seems to measure in different ways on different suspension types. Mine is an AG380. What kind of suspension do you have? Maybe someone here knows. Really though you'd be better off checking with a dealer if you want to be sure the specs are right.

 

Google.com Google knows everything

 

Don't know if freightliner had their own suspension back then, but here is Freightliner Airliner suspension height settings.
http://www.wsnorth.com/wp-content/uploads/2015/02/RIDE_HEIGHT_ADJUSTMENT.pdf

 

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