Recently purchased a used open trailer, needed a little work so we installed new set of leaf springs and a new axle. Looking for advice: should we have the axle sitting on the springs? Or should we have the springs over the axle? The old axle was sitting below the springs, but we went to a local trailer shop and they told us to switch it. It's a small trailer 5X12 with about 6 inches of clearance. Any advice would be great. Thanks!