Rear end gear ratio?

Tiny
REDNECK0819
  • MEMBER
  • 2004 FORD EXPLORER
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 185,000 MILES
How do I find out what my gear ratio is?
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Friday, October 23rd, 2020 AT 11:16 PM

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Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

There should be a tag on the differential. It is attached to one of the bolts that hold the cover to the housing.

If you give me the information off that tag, I can give you the ratio.

If the tag is not there. Then jack up the car and on the back of one of the rear tires, use a crayon mark as a reference. Do the same to the driveshaft as well.

Then turn the wheel one complete revolution and count how many times the driveshaft turns. Tell me the result and I can help there as well.

Roy
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Saturday, October 24th, 2020 AT 4:28 AM

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