HOW TO GET THE DIFFERENTIAL RATIO ON A FORD F150 4X4 REAR DI

  • Tiny
  • craziecowboy
  • 1915 Ford F-150

I blew the back diff on the side of the road I had to take the back cover off and remove the gears so I could get the remaining 2 miles home I have the gears out and was wondering how to get the ratio of it whether I have to count teeth etc before I try and order one from an auto wrecker so I do not end up with 2 different ratios from the front diff to the back any help would be greatly appreciated thanks

Sunday, September 24th, 2006 AT 6:12 PM

1 Answer

  • Tiny
  • rev
  • Member

Hi you get the gear ratio by counting the number of teeth on the spider gear (drive shaft side) as 1 number then count the number of teeth on your ring gear ( the big verticle gear) as the other number then reduce

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Sunday, September 24th, 2006 AT 7:29 PM

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