In a tracker, the lug nut wrench is under driver's seat - secured by little plastic clips, and jack is under passenger seat. The scissor jack has always worked just fine for me on my 29" tires. I actually PREFER it, because it's more secure under there (partially expand the jack when it's in the "holder" and it will hold itself securely in there), and I've seen what happens to heavy items in a roll-over. Imagine that heavy bottle jack freely flying about in the cabin.