The Dana Spicer Screw, part number 17C988 (also referenced as ET17C988), is a genuine Spicer component used in transmission applications. This screw is sold as an individual unit. If you need help confirming this is the correct part for your specific transmission or axle assembly, call us before ordering.FeaturesGenuine Dana Spicer part number 17C988Also cross-referenced as ET17C988Applies to Spicer transmission assembliesSold as individual unit (each)Available through Pro Gear and TransmissionTech SpecsPart Number: 17C988Cross-Reference: ET17C988Brand: Dana SpicerUnit of Measure: Each