The standard features of the Chevrolet Silverado 3500HD LTZ include 6.6L V-8 401hp engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st and 2nd row overhead airbags, airbag occupancy sensor, automatic air conditioning, 17" steel wheels, cruise control, ABS and driveline traction control, StabiliTrak w/Proactive Roll Avoidance electronic stability.