The 9-inch Ford rearend has been the standard all-around bulletproof rear gear for years-in fact it's been the leader since its introduction in 1957. Back in the day, the big Olds rearends were found ...

So if simple math wasn't your thing in school, then narrowing a Ford 9-inch at home might not be the job for you. But if you're the type of hot rodder who likes a challenge, then this old-school ...