Hi Arisce:
The flipping of the axles is: The axle rests on top of the leaf springs, held on by U-bolts. When you "flip" the axles, you put the leaf springs on TOP of the axles with the U-bolts coming up from the bottom. This puts the BODY of the trailer 4"-5" higher in the air.
This fixes some problems with tall 4x4 trucks clearance issues, BUT your trailer suffers from HIGH center of gravity, Crosswinds, Emergency swerving in traffic situations. I've seen it done, but I would never do it. Then there is the issue with Mor-ryde suspensions, which I wouldn't want to mess with. Just my opinion....