REMOVAL
1.
Disconnect negative battery cable.
2.
Raise and support vehicle.
3.
Disconnect differential pressure hoses from pressure sensor tubing (3).
4.
Disconnect oxygen sensor electrical connector.
5.
Remove muffler and tail pipe to DFP flange nuts.
6.
Remove the DFP to exhaust manifold nuts.
7.
Remove steady rest mounting bolts (4).
8.
Remove the diesel particulate filter assembly.