The Meritor KIT2578 is a genuine OEM axle hardware shim pack designed for drive axle service and rebuilding. Also referenced as KIT 2578, this part is catalogued by Meritor under Drive Axle Product Information. Cross-reference numbers include 8235KIT2578, HRKIT2578, KIT2578RI, and TDAKIT2578, which can help confirm this is the correct shim pack for your application. Shim packs are used during axle overhaul to set bearing preload and gear mesh, making accurate part selection critical. Pro Gear and Transmission carries genuine Meritor parts. Call us to confirm this kit fits your specific axle before ordering.FeaturesGenuine OEM Meritor axle hardware shim packMeritor part number KIT2578 (also listed as KIT 2578)Drive axle application per Meritor Drive Axle Product InformationCross-references: 8235KIT2578, HRKIT2578, KIT2578RI, TDAKIT2578Sold by Pro Gear and Transmission