Dana 50

The Dana/Spicer Model 50 was an automotive axle manufactured by the Dana Holding Corporation for 25 years and was used solely in OEM Ford applications.

It was only produced in a reverse cut gear set aka a high pinion.

The Dana 50 was made as a solid axle and as a Twin Traction Beam (TTB) which pivots in the center allowing the wheels to move independently of each other.

Gross axle weight ratings were lowered by Ford for safety and tire reasons.

The 2022 Ford Bronco Raptor utilizes an AdvanTEK M235 (not Dana 50) solid rear axle with a 235mm (9.25 in) ring gear and electronic locking differential.

Dana 50 TTB from a 1996 F-250