The Ford 9.000-inch ring gear has a size advantage over the 12-bolt's 8.875-inch ring gear, though not by that much. The Ford's larger ring gear, in addition to its greater offset relative to the ...

Check out Part I of Nine-Inch, Nailed taking a look at the famous Ford 9-inch Axle! Learn all about this amazing off road axle in this months issue of Off-Road Magazine!

With a 1.5-inch hypoid distance, that comes out to just 1.3 to 1.4 teeth in contact at any one moment on a Chevy 12-bolt versus 1.7 to 1.8 for the Ford's 2.250-inch offset. See All 16 Photos ...

Obviously, you can't just go to the salvage yard and find a 9-inch Ford differential that will bolt into a '69 Chevelle, so we did some research to find out exactly what it takes to put a 9-inch ...

With a 1.5-inch hypoid distance, that comes out to just 1.3 to 1.4 teeth in contact at any one moment on a Chevy 12-bolt versus 1.7 to 1.8 for the Ford's 2.250-inch offset.