Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# PI0887C.
Affected Component: SERVICE BRAKES, AIR:DRUM:SHOES/LININGS
Pulsating/Rotational Noise from Right Rear of Vehicle on Brake Apply
Condition/Concern
Some customers may comment about a pulsating/rotational noise coming from the right rear of the vehicle during brake apply.
This noise may be caused by an interaction between the brake drum and brake shoe.