[JRTJH]

No, you can't just "flip the axles upside down" and attach the springs to the "now on top" spring perches.

The reason you can't do that is the axle tubes are cambered (curved) so they "flatten out" under load. If you "flip the axles" the camber would be on the bottom and work against keeping the tires in correct alignment as well as help with supporting the trailer when loaded.

I'd suggest that if you're looking at a new truck, don't do anything until you've hitched and towed with the new tow vehicle. You may find that you don't need to modify the trailer once you're hitched to a different tow vehicle. Remember that hundreds of this model trailer have been produced and only a very few (if any other than yours) are having this problem. So, save your money until you know you need to spend it on an axle conversion kit.

Good Luck.