Gauge Installation on a Gen 2 Dodge Cummins

To remove the pillar, first pull the door molding off where it contacts the pillar.  Next remove the factory A-pillar.  This is done by pulling it toward you while seated in the drivers seat.  It is held in by 3 retaining clips.  If necessary you can use a flat blade screwdriver and push on the retaining tabs. Start at the top and work your way down.