Ford parts in my Swinger

Alright you got me there is only a couple. The 9" has a 3rd pinion bearing to support the pinion. The only other axle to have it is the GM 14 bolt. Plus there are way more gear options for the 9" and they are everywhere, unlike the 8 3/4. Don't get me wrong I love the 8 3/4 and actually have 3 of them right now, but I think the 9" has them beat on cost and availability, especially if you plan on drag racing. As far as strength goes? Nevermind it will start a pissing match.