ANSWERS: 2
  • The only way to find out is to look at the number on the right side of the housing, on the tube. From there you will have to have a book (or maybe Google the number) to find the ratio.
  • Most GM1500's were 3.08.Jack up the truck. with the truck in neutral,have someone rotate the rear wheel 1 full revolution.Count the revolutions of the drive shaft. 1 full tire rev to 3 driveshaft revs = 3.08:1

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