Install GlowShift’s Graphite Triple Pillar Gauge Pod with a Speaker Cutout for the 2000-2006 GMC Sierra 2500HD/3500HD and take the first step towards adding aftermarket gauges to your 6.6L Duramax LB7, LLY and LBZ. Each gauge pod holds (3) 2-1/16” (52mm) gauges and mounts to the factory A-pillar with the included Speaker Cutout. This custom-fitting pod was designed specifically for the 00-06 Sierra, including the 2007 Classic Body Style, so that it matches the factory interior. Upgrade your GMC with a unique and eye-catching gauge pod which gives you the ability to easily view gauge readings from the convenience of the A-pillar.