Remove the countershaft bearing with the special tool.
Install the ATF guide plate (A).
Install the new countershaft bearing (B) in the housing with the special tools; install the bearing outer race surface in height (C) of 0−0.03 mm (0−0.001 in.) above the housing surface (D). Do not install the bearing exceeding 0.03 mm (0.001 in.) high from housing surface.