First of all great product at a great price. However, this is greatly negated by the lack of instructions in the box. After searching the manufacturer's website, I found instructions, but they were incomplete. A little ingenuity and a little creative propulsion, they'll be installed later. While the largest recommended tire size was a 32-inch tire on a 2013 Wrangler Unlimited, they can easily handle a 33 x 12.50 x 18. Overall I'm happy with the result and would recommend it to anyone who wants to avoid climbing and fit bigger tires on their pseudo-stock jeep!