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Is there an app that decodes the diff tags for 9"?
I'm hoping to get the axle spline count on my wife's 1971 F100.
I'm swapping in my old 9" pumpkin from my 1969 Cyclone GT 428CJ. 4.30:1 Detroit Locker, Daytona pinion, N case. It's been sitting around for over 30 years and I think that it is high time I rebuilt it and used it.
It is setup for the 31 spline axles. I'd like to know if I need new axles or a different Detroit before I get involved in tearing things apart.
Three months ago I would have offered to buy your old axles. I had a bearing spin on the axle shaft and chewed it all up. I ended up replacing both axles with upgraded bearings.