The Muncie 38010316 is a gear housing for the Z55 series PTO, specified for a 1.75t-.75x configuration. Muncie Power Products is a leading manufacturer of power takeoff units and components for heavy-duty truck applications, and this housing is a direct Muncie piece designed for Z55 series assemblies. If you are sourcing replacement gear housings for a Muncie Z55 PTO, the 38010316 is the correct reference. Pro Gear and Transmission carries genuine Muncie parts. Call us to confirm this housing is the right fit for your specific PTO setup before ordering.FeaturesGenuine Muncie Power Products gear housingFits Muncie Z55 series PTO applications1.75t-.75x configuration designationDirect OEM replacement housingSold by Pro Gear and Transmission