GM 700R4 4L60 Late 1987-93 Deluxe Rebuild Kit This transmission rebuild kit includes Alto Friction Plates, 3-4 PowerPack, Steel Plates, Sealing Rings, Metal Clad Seals, Gaskets, Orings, Filter, Band, Front Pump Bushing and Extension Housing Bushing. This pack comes with the Alto PowerPack for the 3-4. This PowerPack has additional clutches to increase friction plate capacity. This allows for an increased torque load with reduced heat generation. This Transmission Kit is one we sell everyday to Transmission Shops, it fits 1987-92 GM 700R4 / 4L60 transmission. All these Kits have Clutches Manufactured by Alto and Gasket Sets made by Precision.