When do rear spring need replacing?
I was under my 1989 Southwind 30E looking at the air bags on the rear leaf springs and notice that they are flatter then what I thought they should be. I believe they are as old as the rig.I having ne...
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Air bags are probably not stock. They may have been added because the previous owner felt the rear was sagging. The air bags will probably not lift the weight of the coach. Measure the diameter and then calculate the surface area. Multiply the surface area X the air pressure. That will tell you how much lift they will provide. Typical air bags capable of handling the whole weight of the coach would be 10 to 12 inches in diameter.
