The middle row bucket seats are mounted differently than the 2 middle row buckets so you have to get them as a set. Believe me, I would have liked to just add a middle bucket (I have a leather interior and had to get cloth middle buckets) but it won't work. The 3 bucket middle row seats are narrower than the 2 individual buckets and sit slightly closer to the outside of the vehicle so as to maximize seating area. The nice thing is, you could advertise a trade to someone who has the 3 seat middle for your 2 seat middle seats if you had to. Maybe even come out spending nothing?