The Muncie Step Stud, part number 20T38391, is a genuine Muncie Power Products service part identified in Muncie’s own service documentation for CS6/CS8 and SH Series power take-offs. This step stud appears in Muncie service publications SP96-05 and SP97-01, confirming its application across both series. The CS6/CS8 Series PTOs are commonly used with Allison 1000/2000 series transmissions and many manual transmissions, while the SH Series is an air-shift-only unit designed for high-torque applications. If you need help confirming this is the correct part for your PTO, call Pro Gear and Transmission.FeaturesGenuine Muncie Power Products service partPart number 20T38391, identified as a Step Stud in Muncie service documents SP96-05 and SP97-01Applies to Muncie CS6/CS8 Series PTOs, which fit Allison 1000/2000 series and many manual transmissionsAlso referenced in SH Series documentation, an air-shift, high-torque PTO lineSold by Pro Gear and TransmissionUsed in these Muncie PTO modelsCB6 SeriesCB8 SeriesCS6 SeriesCS8 SeriesSH6 SeriesSH8 Series