This is a genuine AAM rear axle shaft for the 11.5 or 12.0 rear axle found in many 2019+ Dodge Ram 3500 cab and chassis trucks. Here are some specifications from AAM’s website:
40192277 | RAM | RAM 3500 CAP CHASIS (DD) | 2019+ | 12.0″ 14 Bolt – Rear Axle | L/R | 30 | 962.5 | RAM 12.0″ REAR DW AXLE SHAFT 962 mm / 30 teeth | |||
40192277 | RAM | RAM 3500 CAP CHASIS (DD) | 2019+ | 11.5″ 14 Bolt – Rear Axle | L/R | 30 | 962.5 | RAM 11.5″ REAR DW AXLE SHAFT 962 mm / 30 teeth |