Correct height rear leveling valve

[in2trux]

Measure your fifth wheel height. 47 1/2" and you should be on the money.
The formula for Pete is tire height ÷ 2 + 8.75" to bottom of rail for 4 leaf for 22.5
Make sure the rod length is correct and seated in the rubber fittings so they don't flex under load..
Check the range when it dumps or builds air. It's a close range, maybe 2 inches of travel on the leveler arm.
Valve should cut off air at correct height and start filling when it drops below, just remember there is a lag time.


I beat my head against a wall trying to find the source of a driveline vibration only to discover it was incorrect rod lenght on the valve that was installed by someone I thought knew what they were doing.