How much power will each of these rear end hold
1)7.5"=???
2)8"=???
3)8.8"=???
4)9"=???

 

My somewhat-educated guesses

7.5:150
8:400
8.8:350???
9:800+

 

I know of several bow tie types that sheepishly admit to putting 9 inch Ford rear ends in their dragsters, most of which are 454 CID punched to 512 CID with blown dual 1050 Dominators. You figure the HP.That's because theywanted the best.
Jim

 

OK thanks a lot guys.

 

And, you have to take into account the gear/housing/bearing durability. The factors of each can alter the hp load rating massively. A 9" with the strongest gears could probly withstand 1200 horsepower no problem.

 

petty much all 4 of them stock are kinda weak the 7.5 is the weakest but the 8.8 and 9 can be built to hold a insane amount of power