Ever since it was introduced in 1957, the Ford 9-Inch has been an industry standard for a rear axle that has the durability of an anvil and the ability to take almost unreal amounts of punishment. Here
Rebuilding a Factory 9-Inch Ford Rearend
Dana 60 vs. GM 12-Bolt vs. Ford 9”: The Pros & Cons of Popular
What Makes the 9-inch Ford Rearend So Great?
In-Depth: Strange's Ford 9-inch Centers For Nearly Any Application
In-Depth: Strange's Ford 9-inch Centers For Nearly Any Application
Is a Ford 9-inch rear end better than a Chevy 12-bolt Rear End for
In-Depth: Strange's Ford 9-inch Centers For Nearly Any Application
Dana 60 vs. GM 12-Bolt vs. Ford 9”: The Pros & Cons of Popular
How To Build A Quiet Ford 9-Inch Rear Axle - Holley Motor Life