need to know gear ratio

Asked by Jul 17, 2017 at 05:14 PM about the 1998 Chevrolet Blazer 4-Door 4WD

Question type: Maintenance & Repair

1 Answer

120,265

Look for a tag on the rear differential. You can also take the diff. cover off and count teeth or you can jack the truck up and with a helper rotate the driveshaft and count how many revolutions it takes to rotate a tire one full revolution. If the the diff. is open do this with with one tire on the ground.

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