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Hey all, New to this site. Need some help identifying a rear end. On the end of the drive shaft it has stamped ( ford 5238 11-39 ) Was wondering if the 11-39 could be a manufacture date. The rear end is in a 1930 Model A, but is not the orginial. Got any ideas how I can find out
 

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The 11-39 is likely the teeth count on the pinion/ring gear. If so, that would make it a 39/11 = 3.54 ratio. If it were a date, it would likely have a day/month/year.
 
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