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# 050308001.
REVISED FRONT SUSPENSION FASTENER TIGHTENING SPECIFICATIONS LOWER CONTROL ARM REPLACEMENT PROCEDURE STEERING KNUCKLE REPLACEMENT PROCEDURE AND ADDITION OF LOWER CONTROL ARM BALL STUD IDENTIFICATION NOTICE. *EH