Fuel Tank Bracket and Mounting Replacement Pickup

1. Remove the CNG fuel tank. Refer to Fuel Tank Replacement .
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information in the C/K Pickup service manual.



3. Remove the exhaust system heat shields.



4. Remove and discard the frame support bracket nuts (3).
5. Remove the frame support brackets (4).
6. Lower the vehicle.
7. Remove the CNG fuel tank mounting frame.
8. Discard the fuel tank frame mounting bolts.

1. Position the CNG fuel tank mounting frame into the bed using new mounting bolts.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information in the C/K Pickup service manual.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the frame support brackets (4) using new nuts (3).

Tighten
Tighten the nuts to 81 N·m (60 lb ft).




4. Install the exhaust system heat shields and bolts.

Tighten
Tighten the bolts to 9 N·m (80 lb in).

5. Install the CNG fuel tank. Refer to Fuel Tank Replacement .