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Howdy all, I got the axle code on my 1997 F150 4x4, and it's H9. I found that means I have a 3.55 limited slip diff, but what axles do I have? Front and rear? I dont know if its a Ford 9" or a Dana 44, and Lord I'm not gonna try and guess the front. If anyone has a clue, I could use the help. Thanks - DP
The axle supplier to Ford is "Visteon." This is a company that used to be part of Ford, but was separated some years ago to become a supplier to any vehicle manufacturer. The axle plant is in Sterling, MI. In the rear, you have a Visteon axle, with a 9.75 inch ring gear. I don't know as much about the front axle assembly.
H9 is the ratio code. It could be either a 8.8 or 9.75.
It is the standard Ford code regardless of what size ring gear that it has.
Look up the picture of the cover for the 8.8 @ drivetrain.com and see if yours matches. If not, then it is a 9.75.