2011 Chevrolet Silverado 1500 Extended Cab Dimensions
Exterior
  Extended Cab, Standard Box Extended Cab, Long Box
Wheelbase (in / mm): 143.5 / 3645 157.5 / 4001
Overall length (in / mm): 230.2 / 5844 249.2 / 6325
Overall width (in / mm): 79.9 / 2031 79.9 / 2031
Overall height (in / mm)
2WD: 73.9 / 1876 73.6 / 1870
4WD: 73.7 / 1872 73.6 / 1868
Track (in / mm))
Front: 68.1 / 1732 68.1 / 1732
Rear: 67 / 1702 67 / 1702
Min. running ground clearance)
2WD: 8.9 / 226 9 / 230
4WD: 9 / 228 9.3 / 240
Ground to top of load floor (in / mm):
2WD: 34.4 / 876 34.1 / 867
4WD: 34 / 864 33.6 / 854
Step-in height)
2WD: 22.6 / 574 22.6 / 574
4WD: 22.6 / 574 22.6 / 574
Approach angle (deg))
2WD: 15.6 15.3
4WD: 15.8 15.5
Breakover angle (deg))
2WD: 18 19.6
4WD: 17.8 19.3
Departure angle (deg))
2WD: 22.8 24
4WD: 22 23.3
Interior
  Extended Cab, Front Extended Cab, Rear
Headroom (in / mm): 41.2 / 1048 39.2 / 997
Legroom (in / mm): 41.3 / 1049 34.33 / 872
Shoulder room (in / mm): 65.2 / 1657 65.3 / 1658
Hip room (in / mm): 62.5 / 1588 61.8 / 1570
Curb weight & payload
  GVWR (lb / kg) Base Curb Weight (lb / kg) Max. Payload (lb / kg) Weight Distribution (% front / rear)
2WD Ext. Cab Standard Box: 7000 / 3175* 5075 / 2302* 1925 / 873** 58 / 42
2WD Ext. Cab Long Box: 6900 / 3130 5244 / 2378** 1656 / 751** 59 / 41
4WD Ext. Cab Standard Box: 7200 / 3266* 5321 / 2414* 1879 / 852* 59 / 41
4WD Ext. Cab Long Box: 7000 / 3175 5488 / 2489** 1512 / 686** 60 / 40
*6.2L with six-speed transmission
**5.3L with six-speed transmission
Cargo box
  Extended Cab, Standard Box Extended Cab, Long Box
Cargo volume (cu ft / L): 60.7 / 1718 75.5 / 2138
Length at floor (in / mm): 78.9 / 2003 97.7 / 2483
Width at floor (in / mm): 62.4 / 1586 62.4 / 1586
Width between wheelhousings (in / mm): 50.6 / 1286 50.6 / 1286
Tailgate width (in / mm): 61.5 / 1564 61.5 / 1564
Inside height (in / mm): 21 / 553 21 / 553
Capacities
  Extended Cab, Standard Box Extended Cab, Long Box
Seating: 5 or 6 5 or 6
Fuel tank (gal / L): 26 / 98 34 / 128
  Vortec 4.3L Vortec 4.8L Vortec 5.3L Vortec 6.2L
Engine oil (qt / L): 4.5 / 4.3 6 / 5.7 6 / 5.7 6 / 5.7
Cooling system (qt / L): 12.6 / 11.9 13.4 / 12.7 14.9 / 14.1 12.6 / 11.9
Trailering (Trailer towing maximum with ball hitch (lb / kg)
Ext. Cab, Std. Box: 2WD: 9700 / 4400 (5.3L and 3.42 axle)
4WD: 9600 / 4354 (5.3L and 3.42 axle)
Ext. Cab, Std. Box with NHT enhanced trailering pkg.: 2WD: 10700 / 4853 (6.2L and 3.73 axle)
4WD: 10400 / 4717 (6.2L and 3.73 axle)
Ext. Cab, Long Box: 4WD: 9300 / 4218 (5.3L and 3.42 axle)
*SAE certified.