Feature Fitment: Fits for GM 200, 200C, 200-4R TURBO 350, 350C TURBO 400, 425, 475 GM 700-R4 GM 4L60 GM Allison – 540 Function: A must have tool to remove the leaky seal around the shifter selector shaft mechanism through the transmission case. Easy to install: No need to remove the pan. In most cases, even not necessary to lower the transmission. Material: Made of high quality steel and rubber. Rust and corrosion resistance. Long service time. .