Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Cadillac for this TSB. Call your local Cadillac dealer's service department & ask for a copy of TSB# 0504114001.
CONTROLLING REAR AXLE OR WHEEL HOP ON FULL-THROTTLE APPLICATION FROM A STANDSTILL AND/OR FULL-THROTTLE 1-2 SHIFT (INSTALL SUPPLEMENTARY REAR SUB-FRAME BUSHINGS) *TT UPDATED 4/14/08. *NJ