This rebuild kit includes all of the Alto Friction Clutches, Steel Plates, Sealing Rings, Metal Clad Seals, Gaskets, Orings, and Rubber Piston Seals + 4wd Filter, Band, Pump bushing, & Extension Hsg bushing. Note: This kit comes with the 4wd filter if you have a 2wd please see our other listing All these Kits have Clutches Manufactured by Alto and Gasket Sets made by the Co. TRANSTEC. This E4OD Transmission is the Electronically Controlled 4 Speed Overdrive That comes in some Light Trucks, Vans E & F Series For the Trucks in the 8500-16000lb GVW Range 5.0L, 5.8L, 7.3L & 7.5L Engines.