New fifth wheel drove home need to return to dealer

jackstrat wrote:
I should have added the jacks hit the ground when we are maneuvering the unit into the parking spot.

How about a picture showing this? Maybe they aren't retracting all the way? Go look at a similar trailer and see if it's the same. As other have suggested, modification is cheaper than trading. But, if the length is now a problem, guess you have no option than to sell and buy again.