Silverado 1500 2WD V8-6.0L (2010)
Body / Frame Mount Bushing: All Technical Service Bulletins
Body - Body Mount Bolt Stripped or Will Not Loosen
INFORMATION
Bulletin No.: 10-08-61-001A
Date: February 16, 2011
Subject: Information on Body Mount Bolt Stripped or Will Not Loosen
Models:
2010-2011 Chevrolet Silverado
2010-2011 GMC Sierra
Supercede:
This bulletin is being revised to add Warranty Information. Please discard Corporate Bulletin Number 10-08-61-001 (Section 08 - Body and
Accessories).
The purpose of this bulletin is to provide guidance to GM dealers when performing repairs that involve the removal of the body mount bolts. Technicians
may discover that one of the cab mount bolts won't loosen from the vehicle. The bolt may act like the nut is cross-threaded or no longer secured to the
floorpan of the vehicle.
The cab mounted cage nut may have bent or broken loose allowing the nut to spin. If the nut is allowed to spin, it may prevent the bolt from loosening.
The front cab mount nuts are welded to the body structure and are not involved with this bulletin.
The cage nut assembly must be accessed from inside of the vehicle if this condition occurs. Some of the cage nuts have rectangular access plates in the
floor of the passenger compartment. These plates are located above the affected bolt. On extended cab vehicles it is necessary to create access holes in
the rear floor area to reach the rear cage nut.
Creating Access Hole (Extended Cab Vehicles Only)
Use the following steps to create an access hole in the rear floor area of extended cab vehicles. This procedure only applies to the rear set of mounting
bolts.
Note
This procedure below is for the left side of the vehicle. The procedure and measurements are the same for both the left and right side procedures.
1. Remove the seat located above the affected bolt. Refer to Rear Seat Replacement in SI.
2. Partially remove (pull back) the floor covering (carpet) to expose the seat mounting stud area of the floor.
3. Apply masking tape to the repair area as shown.
