This three piece tool is used to install and compress the solid Teflon seals in the 6T70 transaxle without damage to the seal ring edges. GM-46624-3 is a cone shaped protector that keeps the seal inner surface from contacting the sharp edges of the transfer drive gear support ring grooves during installation. GM-46624-2 pushes each seal down over the input shaft and allows the seal to drop into its respective ring groove. Once the solid seals are installed, the GM-46624-1 Sizer compresses the seals so the transfer drive gear will fit over the seals during reassembly without damaging them.