Brand: ATI Performance Products Manufacturer's Part Number: ATI407059 Part Type: Automatic Transmission Drums Product Line: ATI Automatic Transmission Drums Automotive Fittings Part Number: ATI-407059 UPC: 800157082580 Remanufactured: No Transmission Drum Material: Aluminum Sprag Assembly Included: Yes Quantity: Sold as a kit. Notes: This kit includes a billet steel outer sleeve, eight direct clutches, and five intermediate clutches. Description: ATI Performance automatic transmission drums eliminate the need for steel bushings and sleeves that can expand under heat and come loose, ultimately causing transmission failure. They come equipped with Torrington bearings and are designed to triple clutch life and lower ETs.