General RV Information
General discussion forum for RVers.
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Ok just measured my frame rails they are High Frame Rails. I think Volvo set my truck too high. It is at 8.25 and should fall within 7 - 7.75. This is good news for me as I could use a lower deck for my 5th wheel plate. The Volvo tech struggled to understand and get values. I plan to lower to 7.25. comments -
3/4 inch range, how much depends on your frame type. My 660 has a low frame. Measure from the weld on the axle tube to the bottom of the frame. -
The Writer of the Instructions is working to make a Simple Job harder and more stressful. Added Math for differences in Tire Heights(Grd to Axle Center), US Built Class 8 Air Rides measure Air Spring height by the distance of Top of Axle Tube to the Frame Mounted Bump Stop. My own KW is "Suggested" at 4.25". adjustable Up or Down if need stiffer support or Less Stiff. Dropping to 4" reduced air bag pressure by an equivalent 6-8 psi, same for increasing to 4.5", these measurements made at rear most axle. -
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