How To Find The Gear Ratio Of A Rear End - How To Find
Rear end gears Chevy Truck Forum GM Truck Club
How To Find The Gear Ratio Of A Rear End - How To Find. Vin code, dividing the ring and pinion teeth count, and counting the wheel turns. In the above example, 37 ÷ 12 = 3.083333.
Rear end gears Chevy Truck Forum GM Truck Club
Read the metal tag attached to one of the differential cover bolts. Figuring rearend gear ratio (ring & pinion) formula: General motors rear end differentials are referred to by the diameter of the ring gear, i.e. To find the gear ratio, divide the big number by the little number. Knowing your car’s rear end gear ratio can give you a greater understanding of your car and help in changing different parts. The gear attached to the motor shaft is considered the first gear, or the “drive gear”, and the other gear, whose teeth are meshed with the drive gear, is considered the second gear, or “driven gear.” count the number of teeth on the drive gear and on the driven gear. Mark the driveshaft somewhere you can see it from a safe area. Turn the wheel 2 complete turns. 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. Count the number of driveshaft revolutions required for one revolution of the tire.
Enter the tire size diameter and the target vehicle speed in mph. The tsm has the reference chart. 1800 rpm / 656.93811 = 2.73:1 example without overdrive: Count the number of revolutions the drive shaft turns (using the masking tape attached to it as a guide) to one tire revolution. How to find the rear end gear ratio. This tag, which is always present (if not removed by a previous owner), will indicate the gear ratio that came with the vehicle originally. To verify, or to see if that ratio has changed, you can jack up the rear axle and support it with jack stands. This mark is made to identify where the center is, or the count/start point so we can count the. Most automobiles use gear ratios in the drive axle and the transmission to multiply power. The value will be returned in estimated differential gear ratio, based on the entered values. With the transmission in neutral, rotate the rear driveshaft by hand.
