Sierra 2500 Denali 2WD V8-6.0L (2011)
11. Remove the control valve channel plate (1).
Caution: Do not use the old spacer plate. Install a NEW spacer plate. Reusing an old spacer plate may cause internal transmission leaks and
transmission damage.
12. Remove the control valve body spacer plate with gasket assembly (2).
13. Remove the fluid pump ball check valve (3) from the control valve upper body assembly (4).
Installation Procedure
1. Install the fluid pump ball check valve (3) to the control valve upper body assembly (4).
Caution: Do not use the old spacer plate. Install a NEW spacer plate. Reusing an old spacer plate may cause internal transmission leaks and
transmission damage.
2. Install the control valve body spacer plate with gasket assembly (2).
3. Install the control valve channel plate (1).
