Today on our 2004 Jeep Wrangler, we'll be installing Hidden Hitch, part number 87431. Here's what our hitch will look like once it's installed. Next, I'll give you a couple measurements to assist in selecting accessories for your new hitch such as a ball mount, bike rack or cargo carrier. From the center of the hitch pin hole to the outer most edge of the rear mounted spare tire is 6 1/4 inches.… see more >