Apple Offering $700 Kit to Add Wheels to the Mac Pro
When adding wheels to the Mac Pro when making an initial purchase, Apple charges $400, but the standalone kit to be used after purchase is $300 more because the pre-purchase price includes the price of removing the $300 feet.
Apple says the kit includes a 1/4-inch to 4mm hex bit for installing the wheels, but additional tools are necessary. The purchase price includes a total of four wheels and an installation guide.
Apple also offers a Mac Pro Feet Kit for those who ordered wheels but want to swap back to standard feet. The Feet Kit is priced at $300.