| Subject: | EI08027 -- Underbody Noise, Pop, Creak, Groan, Clunk, Squeak, Body Mount (Install Insulator) | 
| Models: | 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT | 
 | 2007-2008 Chevrolet Avalanche, Silverado, Suburban, Tahoe | 
 | 2007-2008 GMC Sierra, Yukon, Yukon Denali, Yukon XL | 
 
This bulletin is being revised to end the need for engineering information. Please discard Corporate Bulletin Number 08-08-61-001A (Section 08 -- Body and Accessories).
Refer to Service Bulletin 06-08-61-003D for field fix information.