ford 9 inch really?

The ford 9 is about the same strength as a 8.75 rear. The ford offers a much much bigger following so it's a lot easier to find parts/upgrades and are usually a lot cheaper. Now a Dana 60 is a **** load stronger than but 8.75/9" but the 8.75/9 offer quick change gear ratio swaps.

Go to a race track and look under all the cars. Ford 9" is the majority choice and there is a reason for it. They are hella stronger & cheaper to build with better gear selection than an 8 3/4 ever had to offer and easier gear swaps than a Dana 60.