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I want to install a Powertrax no slip in my 78 Ford 4x4. The axle code from the door jam I have is 16J, my line setting sheet says 390B. So far I believe this is a 9" Ford , 3.50-1 ratio ring and pinion. My question; is this correct and is this a 28 or 31 spline axle?
Line setting is what I called the build sheet you sometimes find hidden in the seat or wherever. Usually contains the ID for all the component that went on during building of the truck and should match the info in the door jam. Thanks for the help!
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