Yukon 2WD V8-5.3L (2007)
Important: Position the piston in the bore so that it is straight and level.
5. Position the piston to the brake caliper bore and seat the boot into the brake caliper bore groove.
6. Position a piece of wood across the piston to be installed.
7. Applying equal pressure by hand while pushing down, install the piston in the bore.
8. Remove the piece of wood.