Value; quality reputation; towing and hauling ability; fuel-saving Hybrid model ... The GMC Sierra 1500 Classic’s VortecMAX Performance Package allowed up to 10,000 pounds to be towed by the pickup ...
As a heavy-duty truck, this engine was supported by an electrical system featuring 145-amp alternator and a high-grade battery with run-down protection. The Vortec powerplant was connected to a ...