Specifications Comparison: 2005 Chevrolet Silverado 1500 vs 2021 Chevrolet Silverado 1500

Towing Capacity

Trim	Engine	Drive train	Towing Capacity (lbs)
Crew Cab LS	V8	RWD	7,700 lbs.
Crew Cab LS	V8	4WD	8,400 lbs.
Crew Cab LT	V8	RWD	7,700 lbs.
Crew Cab LT	V8	4WD	8,400 lbs.
Crew Cab Z71	V8	4WD	8,400 lbs.
Extended Cab	V6	RWD	5,100 lbs.
Extended Cab	V8	4WD	7,700 lbs.
Extended Cab LS	V8	RWD	7,000 lbs.
Extended Cab LS	V8	4WD	7,700 lbs.
Extended Cab LT	V8	RWD	8,000 lbs.
Extended Cab LT	V8	4WD	7,700 lbs.
Extended Cab Z71	V8	4WD	7,700 lbs.
Regular Cab	V6	RWD	3,900 lbs.
Regular Cab	V6	4WD	4,100 lbs.
Regular Cab LS	V8	RWD	7,300 lbs.
Regular Cab LS	V8	4WD	8,000 lbs.
Regular Cab Z71	V8	4WD	8,000 lbs.
Extended Cab LS	V8	RWD	6,700 lbs.
Extended Cab LS	V8	4WD	7,400 lbs.
HD Crew Cab LS	V8	RWD	8,200 lbs.
HD Crew Cab LS	V8	4WD	7,900 lbs.
HD Crew Cab LT	V8	RWD	8,200 lbs.
HD Crew Cab LT	V8	4WD	7,900 lbs.

Trim	Engine	Drive train	Towing Capacity (lbs)
Crew Cab Custom	5.3L V8	RWD	9,300 lbs.
Crew Cab Custom	5.3L V8	4WD	9,100 lbs.
Crew Cab Custom Trail Boss	6.2L V8	4WD	7,200 lbs.
Crew Cab High Country	3.0L I6	RWD	9,700 lbs.
Crew Cab High Country	6.2L V8	4WD	9,100 lbs.
Crew Cab LT	3.0L I6	RWD	9,300 lbs.
Crew Cab LT	3.0L I6	4WD	9,100 lbs.
Crew Cab LT Fleet	2.7L	4WD	9,100 lbs.
Crew Cab LT Trail Boss	6.2L V8	4WD	9,100 lbs.
Crew Cab LTZ	3.0L I6	RWD	9,700 lbs.
Crew Cab LTZ	6.2L V8	4WD	9,300 lbs.
Crew Cab RST	3.0L I6	RWD	9,300 lbs.
Crew Cab RST	6.2L V8	4WD	9,100 lbs.
Crew Cab Work	5.3L V8	RWD	7,600 lbs.
Crew Cab Work	5.3L V8	4WD	7,400 lbs.
Extended Cab Custom	5.3L V8	RWD	9,300 lbs.
Extended Cab Custom	5.3L V8	4WD	9,100 lbs.
Extended Cab Custom Trail Boss	6.2L V8	4WD	7,300 lbs.
Extended Cab LT	3.0L I6	RWD	9,300 lbs.
Extended Cab LT	3.0L I6	4WD	9,100 lbs.
Extended Cab LT Fleet	2.7L	4WD	9,100 lbs.
Extended Cab RST	6.2L V8	4WD	9,100 lbs.
Extended Cab Work	5.3L V8	RWD	7,600 lbs.
Extended Cab Work	5.3L V8	4WD	7,400 lbs.
Regular Cab Work	5.3L V8	RWD	7,900 lbs.
Regular Cab Work	5.3L V8	4WD	7,600 lbs.