2014 Chevrolet Silverado 3500 HD Crew Cab Owner Manual - Page 444

10-78 Vehicle Care 5. If the flat tire is on the rear, for 1500 models position the jack under the rear axle about 5 cm (2 in) inboard of the shock absorber bracket. 4. Position the jack under the vehicle, as shown. If the flat tire is on the front of the vehicle (1500 Model vehicles), position the jack under the bracket attached to the vehicle's frame, behind the flat tire. Rear Position - 1500 Models Rear Position - All Other Models Front Position - All Other Models Position the jack under the vehicle, as shown. If the flat tire is on the front of the vehicle (all other models), position the jack on the frame behind the flat tire.