The OTC Torque Converter Seal Installer, No. 6715, is designed to install torque converter seals without damage. The tool is similar to the J-28540-A, the company says. The tool converter seal installer works on 1990-2011 CM 4T6O and 4T60E automatic transmissions found on most GM front wheel drive automatic transmission vehicles from 1990-2011, including Buick, Chevrolet, Cadillac, Pontiac and Oldsmobile.