Fits for 4L60E 4LC65E 4L70E 4L80E; Fits for GM Chevy Cars and Trucks with V6 and V8 transmissions 1996 and newer; Fits for Impala C1500 C2500 C3500 K1500 CT4/5/6 Camaro etc. The tool goes over the shaft, threads onto the leaky seal (counterclockwise) engaging the seal with the tool LH threads, then with the hex bolt turned the seal is efficiently removed intact.