4L60E Monster Transmission 4x4 Heavy Duty, 1pc Case 4WD Remanufactured Overdrive Trans Our remanufactured transmissions meet or exceed the guidelines set forth by the manufacturer. 3 Yr Warranty available w/Torque Converter Purchase Additional Core Fees, Core Return Shipping will Apply. Call for Details - 800-708-0087 4L60E Automatic 1pc Case 4WD HD 4x4 Chevy Rear Wheel Drive