The Dana Spicer friction plate, part number 10077390, is designed for Allison Off Highway TP-series transmission applications. This friction plate is sold individually (each). If you are cross-referencing by the Allison Off Highway vendor part number 10077390 or the retail-coded number LY10077390, this is the same part. Pro Gear and Transmission carries genuine Dana Spicer components for demanding off-highway applications. Call us to confirm this plate fits your specific transmission build before ordering.FeaturesDana Spicer part number 10077390Also cross-referenced as LY10077390Designed for Allison Off Highway TP-series (99923) transmission applicationsSold individually – unit of measure: eachGenuine Dana Spicer component from Pro Gear and Transmission