Dana Spicer 72162-X Dana 70 Ring and Pinion Gear Set – 7.17 Ratio
The Dana Spicer 72162-X Ring and Pinion Gear Set is a genuine Spicer replacement gear set designed for Dana 70 axle assemblies requiring a 7.17:1 final drive ratio. Manufactured to Dana OE specifications, the 72162-X is engineered to provide accurate gear mesh, dependable torque transfer, and long service life in heavy-duty axle applications.
This gear set is intended for applications where a very deep axle ratio is needed for maximum low-speed pulling power and torque multiplication. The 7.17 ratio is commonly associated with specialized commercial, vocational, van, chassis, and industrial applications using Dana 70-series axles. Dana’s application literature lists 72162X among its Dana 70 ring-and-pinion offerings alongside 3.73, 4.10, 4.88, 5.13, 5.86, and 6.17 ratios.
Technical Specifications
- Manufacturer: Dana Spicer
- Part Number: 72162-X
- Alternate Format: 72162X
- Product Type: Differential Ring and Pinion Gear Set
- Axle Family: Dana 70
- Gear Ratio: 7.17:1
- Pinion Spline Count: 29 splines
- Pinion Nut Included: No
- Country of Origin: USA
- UPC: 00023913492793
Features & Benefits
- Genuine Dana Spicer replacement gearing
- Designed for compatible Dana 70 axle assemblies
- Deep 7.17:1 ratio for high torque multiplication
- Precision-manufactured gear tooth geometry for proper contact pattern and quiet operation
- High-grade metallurgy for strength and durability
- Designed and tested to meet Dana original-equipment specifications
- Suitable for axle rebuilds, gear replacement, and ratio restoration applications
Common Applications
Dana and aftermarket application data associate the 72162-X with a wide range of Dana 70-equipped vehicles and equipment, including select:
- Ford E-350 / E-450 Super Duty
- Ford F-350
- Chevrolet and GMC C/K 30 and 3500-series trucks
- Chevrolet Express 3500
- GMC Savana 3500
- Dodge D/W 250 and 350
- Dodge Ram 2500 / 3500
- Older Dodge and Fargo 1-ton truck applications
- Specialty industrial and airport tug axle applications
Because Dana 70 axles were produced in many configurations over a long period, vehicle model alone is not enough to confirm fitment.
Installation Note
Ring-and-pinion replacement requires proper setup of pinion depth, bearing preload, backlash, and gear contact pattern. Incorrect adjustment can result in gear noise, overheating, premature bearing wear, or gear failure.
Before ordering, verify the axle BOM, Dana 70 configuration, 7.17 ratio, and 29-spline pinion against the original axle assembly.
The Dana Spicer 72162-X is a genuine OE-quality ring-and-pinion set for compatible Dana 70 applications requiring the deep 7.17:1 gear ratio.
