How To Find The Gear Ratio Of A Rear End - How To Find

Ford 9in rear end gear ratios

How To Find The Gear Ratio Of A Rear End - How To Find. If it takes about 3 and a quarter turns of the driveshaft, you have 3.23 or 3.25 gears. General motors rear end differentials are referred to by the diameter of the ring gear, i.e.

In the above example, 37 ÷ 12 = 3.083333. Raise and support the rear of the vehicle with jack stands. How to identify rear end gear ratio? This mark is made to identify where the center is, or the count/start point so we can count the. General motors rear end differentials are referred to by the diameter of the ring gear, i.e. Vin code, dividing the ring and pinion teeth count, and counting the wheel turns. For instance, if the drive shaft rotates three and a quarter turns to one tire rotation, then your rear axle gear ratio is 3.25:1. Figuring rearend gear ratio (ring & pinion) formula: An example would be if the ring gear has 37 teeth and the pinion gear has nine teeth, the gear ratio will be 4.11:1. This ratio refers to the number of teeth on.

7.5 inch, 8.5 inch, 10.5 inch. This tag, which is always present (if not removed by a previous owner), will indicate the gear ratio that came with the vehicle originally. 1800 rpm / 656.93811 = 2.73:1 example without overdrive: The value will be returned in estimated differential gear ratio, based on the entered values. How to find the rear end gear ratio. For instance, if the drive shaft rotates three and a quarter turns to one tire rotation, then your rear axle gear ratio is 3.25:1. To calculate your gear ratio you will need to remove the differential cover and count the number of teeth on the ring gear and the pinion gear. Put the vehicle in neutral (but not running). The tsm has the reference chart. When you multiply the two ratios, it equals the final drive ratio. To do another, enter a new set of values.