For vehicles that require extreme performance, Spicer gearing offers strength that can not be beaten. Dana design, engineering, testing, and manufacturing processes all work together to ensure reliability that others simply cannot deliver. For when you push your vehicle to the extreme, Spicer gearing is proven to be the best in the business.
Differential Identification Guide
To order the correct ring & pinion, it's crucial to know the differential type and gear ratio on your vehicle.
Next, determine the gear ratio on your vehicle using one of the following methods:
Count The Teeth: Divide the number of teeth on the ring gear (big gear) by the number of teeth on the pinion gear (small gear). If you have 37 teeth on your ring gear and 12 teeth on your pinion gear, you have a 3.08 Gear Ratio (37 ÷ 12 = 3.08).
Verify Through A Dealer: Verify the ratio using your VIN number. This will only be accurate if the differential has not been previously modified.
