25 Pack The Eaton Stud-Drive, part number 127794, is a genuine Eaton differential component sold by Pro Gear and Transmission. This stud-drive is designed for use in Eaton differential assemblies, making it a direct-fit service part when your original unit needs replacement. Eaton is a widely recognized name in heavy-duty drivetrain components, and sourcing the correct part number matters when servicing differential hardware. If you need help confirming this is the right part for your application, give us a call before ordering.FeaturesGenuine Eaton differential componentPart number 127794Designed as a direct service replacement for Eaton differential assembliesSold by Pro Gear and TransmissionCall to confirm proper fitment for your specific differential applicationThis product has been superseded and is no longer available. If ordered, you will receiveR004953.This unit is sold in packs of 25.FeaturesGenuine Eaton differential componentPart number 127794Designed as a direct service replacement for Eaton differential assembliesSold by Pro Gear and TransmissionCall to confirm proper fitment for your specific differential applicationUsed in these Dana Spicer models40 Series Single Reduction Tandem Drive AxleDS404 / RS404 Tandem Drive AxleDS405 Tandem Drive AxleDSH40 Tandem Drive AxleDSH44 Tandem Drive AxleDSP41 Single Reduction Drive AxleDST40 Tandem Drive AxleDST41 Tandem Drive Axle