GM Transmission Shifter Seal Remover Installer Turbo 300 350 400 700-R4 4L60 includes seal Tool is mandatory to remove the leaky seal around the shifter selector shaft mechanism through the transmission case. This handy tool will let you remove and insert the seal without removing the tranny pan or in most cases without even lowering the transmission. Tool has sharp leading thread edge to engage with leaky seal for efficient removal Kit includes shifter gear selector rod seal Steel construction threaded remover and steel installer dowl