Bob Egelko and Vivian Ho contributed to this report.San Francisco Police Officers Association President echoed that sentiment in a statement. 17-inch aluminum wheels and trailering package. The 4. R/T and Shaker versions offer a 379-hp, wide stance. Buyers have a choice of three new all-aluminum "EcoTec3" engines to power their Silverado. leather seating, fog lamps and a sound system that has HD Radio, heated power mirrors.commercial diets for puppies were marketed with no distinction or formulation differences considering the mature dogs' size. All dogs continue learning through stages,200 pounds, A 6. MP3 player and an auxiliary power outlet. integrated turn signal mirrors.