Hello Steven!
It's wonderful to hear a Disneyland Guest is making their way out east to the Most Magical Place on Earth. While Disneyland is the original and will always have a special place in my heart, I think you are going to adore your Walt Disney World Resort vacation--there is so much to do!
Yes, if you happen to find your carriage has a flat, you can stop by the
stroller and EVC rental area in each of the four theme parks to get some air. If you notice it before you've left your
Walt Disney World Resort Hotel, I suggest calling or visiting the Bell Services desk prior to beginning your magical day. As any Disney Prince or Princess knows, the story isn't magical when there's a snag in the fairy tale, so the Cast Members will be happy to help you with a little pixie dust to get you on your way.
Thank you so much for visiting the Disney Parks Moms Panel, Steven. If there is anything else we are able to assist you with, please let us know.
Magical Wishes,
Lauren