Removal Procedure
- Drain the air tank. Refer to 
Air Brake Reservoir Draining
 .
 
- Disconnect the air line from the exhaust brake actuator snap-to-connect fitting.
 
- If equipped with a 7.8L, perform the following steps:
 
| 3.1.  | Note the position of the lower exhaust clamp and loosen. | 
 
| 3.2.  | Remove the rear exhaust manifold pipe from the exhaust brake. | 
 
| 3.3.  | Note the position of the top exhaust brake clamp and the exhaust brake. | 
 
| 3.4.  | Disconnect the top exhaust brake clamp, the exhaust brake and the gasket from the Turbo. | 
 
- If equipped with a 6.6L, remove 8 bolts, nuts and exhaust brake.
 
Installation Procedure
- If equipped with a 7.8L, perform the following steps:
 
| 1.1.  | Install the new gasket, the exhaust brake on the Turbo with the upper clamp in original position. | 
 
| 1.2.  | Install the lower manifold pipe to exhaust brake with clamp in original position. | 
 
- If equipped with a 6.6L, install the exhaust brake to exhaust with 8 nuts and bolts.
 
- Connect the air line to the snap-to-connect fitting on the exhaust brake actuator.
 
- Refill air tank. Refer to 
Air Brake Reservoir Filling
 .
 
- Check system for leaks.