Dana Model 80 Full-Floating Rear Drive Axle

Rear Drive Axle and Differential





Dana Model 80 Full-Floating Rear Drive Axle








Identification Tag








Dana Model 80, Full-Floating Rear Axle, Disassembled View

NOTE: Unless noted, the procedures apply to the conventional differential, Trac-Lok differential, and Truetrac differential, though most of the illustrations used in the procedures show the conventional differential.

The Model 80 rear axle features the following:
- a hypoid design differential ring gear and pinion with the centerline of the pinion set below the centerline of the differential ring gear
- full floating axle shafts
- an integral-type differential housing consisting of a cast center section with two steel tubes
- a stamped differential housing cover for F-350 DRW
- a cast aluminum differential housing cover for F-450 DRW
- a conventional differential assembly for F250
- a conventional differential assembly or a Trac-Lok limited slip differential assembly for F350
- a conventional differential assembly or a Truetrac limited slip differential assembly for F450