The Motive Gear Dana 60 Ring and Pinion gear set features a reverse cut ration of 4.88.1. This design is a result of years of racing development, and some of the best manufacturing methods in the industry. 

Here are additional specs:
•    Ring and pinion ratio: 4.88.1
•    Cover bolts: 10
•    Ring gear bolts: 12
•    Pinion spline count: 29
•    Carrier series: 3
•    Ring gear rotation: Reverse
•    Ring gear teeth: 39
•    Pinion gear teeth: 8
•    Ring gear diameter (inches): 9.750”
•    Pinion shaft diameter (inches): 1.626”

Fits 4.10.1 and numerically lower series carriers.

Specifications

• Axle Type: Dana 60
• Bearings Included: No
• Hardware Included: No
• Pinion Gear Teeth: 8
• Ring Gear Teeth: 39
• Spline Count: 29

Warranty: 6 Month Limited

Fitment: Ford F250/350/450/550 Superduty 1978-2019