Specifications Comparison: 2021 Chevrolet Silverado 3500 vs 2003 Chevrolet Silverado 3500

Gas Tank Size

Trim	Eng.	Drive train	Fuel Tank Size (Gal)	Fuel Tank Size (L)
HD Crew Cab High Country	6.6L V8	4WD	36.0	136.3
HD Crew Cab High Country	6.6L V8	4WD	36.0	136.3
HD Crew Cab LT	6.6L V8	RWD	36.0	136.3
HD Crew Cab LT	6.6L V8	RWD	36.0	136.3
HD Crew Cab LT	6.6L V8	4WD	36.0	136.3
HD Crew Cab LT	6.6L V8	4WD	36.0	136.3
HD Crew Cab LTZ	6.6L V8	RWD	36.0	136.3
HD Crew Cab LTZ	6.6L V8	RWD	36.0	136.3
HD Crew Cab LTZ	6.6L V8	4WD	36.0	136.3
HD Crew Cab LTZ	6.6L V8	4WD	36.0	136.3
HD Crew Cab Work	6.6L V8	RWD	36.0	136.3
HD Crew Cab Work	6.6L V8	RWD	36.0	136.3
HD Crew Cab Work	6.6L V8	4WD	36.0	136.3
HD Crew Cab Work	6.6L V8	4WD	36.0	136.3
HD Extended Cab LT	6.6L V8	RWD	36.0	136.3
HD Extended Cab LT	6.6L V8	RWD	36.0	136.3
HD Extended Cab LT	6.6L V8	4WD	36.0	136.3
HD Extended Cab LT	6.6L V8	4WD	36.0	136.3
HD Extended Cab Work	6.6L V8	RWD	36.0	136.3
HD Extended Cab Work	6.6L V8	RWD	36.0	136.3
HD Extended Cab Work	6.6L V8	4WD	36.0	136.3
HD Extended Cab Work	6.6L V8	4WD	36.0	136.3
HD Regular Cab LT	6.6L V8	RWD	36.0	136.3
HD Regular Cab LT	6.6L V8	RWD	36.0	136.3
HD Regular Cab LT	6.6L V8	4WD	36.0	136.3
HD Regular Cab LT	6.6L V8	4WD	36.0	136.3
HD Regular Cab Work	6.6L V8	RWD	36.0	136.3
HD Regular Cab Work	6.6L V8	RWD	36.0	136.3
HD Regular Cab Work	6.6L V8	4WD	36.0	136.3
HD Regular Cab Work	6.6L V8	4WD	36.0	136.3

Trim	Eng.	Drive train	Fuel Tank Size (Gal)	Fuel Tank Size (L)
Crew Cab	V8	4WD	34.0	128.7
Crew Cab LS	V8	RWD	34.0	128.7
Crew Cab LS	V8	4WD	34.0	128.7
Crew Cab LT	V8	RWD	34.0	128.7
Crew Cab LT	V8	4WD	34.0	128.7
Extended Cab	V8	RWD	34.0	128.7
Extended Cab	V8	4WD	34.0	128.7
Extended Cab LS	V8	RWD	34.0	128.7
Extended Cab LS	V8	4WD	34.0	128.7
Extended Cab LT	V8	RWD	34.0	128.7
Extended Cab LT	V8	4WD	34.0	128.7
Regular Cab	V8	4WD	34.0	128.7
Regular Cab LS	V8	4WD	34.0	128.7