I received my first letter from the dealer yesterday. Rapid Response Transmittal #09-104. It appears that some or all of the trucks did not have the brake booster clip installed. Not sure of the exact details, but according to the service guy it is the clip that goes where the pedal assembly linkage connects to the brake booster. The purpose of the RRT is to inspect the truck and install the clip if it is missing.
-Mike
-Mike