Dana Spicer 2117753 is a plate-reaction for off highway applications. A reaction plate is the steel plate that the friction plates in a plate-type pack are clamped against when the pack is applied, so it takes the load every time the pack engages. It is a genuine Dana Spicer part from Pro Gear and Transmission. Call us to confirm proper fit for your application.FeaturesGenuine Dana Spicer plate-reactionDana Spicer part number 2117753For off highway applicationsSteel reaction surface for the friction plates in a plate-type packSold by Pro Gear and Transmission