K 2500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2002)
4. Install the floor air outlet duct extension (1) to the floor air duct (2).
"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application". See:
Application and ID/RPO Codes
Recirculation Actuator Replacement (RPO (CR2))
REMOVAL PROCEDURE
1. Remove the air distribution duct.
2. Disconnect the electrical connection from the recirculation actuator (1).