KNUCKLE LH

The Dana 972840 is an axle component designed for Dana DSH40 and DST40 series tandem drive axles, used in heavy-duty commercial vehicles. It is part of Dana's HPD™ (High Power Density) design, which optimizes axle performance for high torque/horsepower engines in increased payload applications. This component contributes to features such as a 500,000-mile lube drain interval, no-maintenance axle venting, and an exclusive micro-lip seal and slinger system. The DSH40 series tandem axles have a maximum Gross Axle Weight (GAW) of 40,000 lbs (18,144 kg) and a maximum Gross Combined Weight (GCW) Highway of 110,000 lbs (49,895 kg). They are compatible with engines up to 650 HP and 2050 lbs.ft. The part has a body diameter of 1.88 inches (48 mm) and 41 splines with a spline diameter of 2.10 inches (53 mm).