Front Drive Axle and Differential

The 7.5-inch and 8.26-inch ring gear front differential axle has 3.73, 4.27, 4.46 and 4.7 gear ratio versions.

There are three different types of front differentials available.

• Open differential with FAD - DANA M190
• Open differential without FAD - DANA M190
• Electronic Locking style front differential without FAD - DANA M210

The front drive axle consists of:

• DANA M190: A cast-aluminum center section
• DANA M210: A cast-iron center section
• Integral-type housing hypoid gear design (center of the pinion set below the centerline of the ring gear). Two opposed tapered roller bearings support the drive pinion in the axle housing
• Pinion bearing preload that is maintained by a drive pinion collapsible spacer on the differential pinion shaft and adjusted by the pinion nut
• A differential case, a one-piece design with 2 openings to allow for assembly of the internal components and lubricant flow. Two opposed tapered roller bearings (differential bearings) support the differential case in the axle housing.