How to ID rear diff to repair.10 bolt front housing

Asked by Jun 17, 2012 at 02:41 PM about the 1977 Ford F-150

Question type: Maintenance & Repair

More info found on tag bolt. WDM-BU4   7BD      00    9        350A                                                                           

2 Answers

525

WDM-BU4 Ford F100, F150 Pickup '75-'79 3.00 gear ratio 9" ring gear, no locker, 31 splines on the axles

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Is there a book or a web site that I can referance #'S FROM TAGS &STICKERS

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