Specifications Comparison: 2021 Chevrolet Silverado 1500 vs 2024 GMC Sierra 1500

Towing Capacity

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.

Trim	Engine	Drive train	Towing Capacity (lbs)
Denali Crew Cab 147"	5.3L V8	RWD	9,400 lbs.
Denali Crew Cab 147"	5.3L V8	4WD	9,200 lbs.
Denali Crew Cab 157"	5.3L V8	4WD	9,000 lbs.
Elevation Crew Cab 147"		RWD	9,100 lbs.
Elevation Double Cab 147"		RWD	9,100 lbs.
Elevation Crew Cab 147" w/3SB		4WD	8,900 lbs.
Elevation Crew Cab 147" w/3VL		4WD	8,900 lbs.
Elevation Crew Cab 157"		4WD	8,900 lbs.
Elevation Double Cab 147" w/3SB		4WD	8,900 lbs.
Elevation Double Cab 147" w/3VL		4WD	8,900 lbs.
Pro Crew Cab 147"		RWD	9,100 lbs.
Pro Double Cab 147"		RWD	9,100 lbs.
Pro Reg Cab 126"		RWD	9,100 lbs.
Pro Reg Cab 140"		RWD	9,500 lbs.
Pro Crew Cab 147"		4WD	8,900 lbs.
Pro Crew Cab 157"		4WD	8,900 lbs.
Pro Double Cab 147"		4WD	8,900 lbs.
Pro Reg Cab 126"		4WD	8,800 lbs.
Pro Reg Cab 140"		4WD	9,200 lbs.
SLE Crew Cab 147"		RWD	9,100 lbs.
SLE Double Cab 147"		RWD	9,100 lbs.
SLE Crew Cab 147"		4WD	8,900 lbs.
SLE Crew Cab 157"		4WD	8,900 lbs.
SLE Double Cab 147"		4WD	8,900 lbs.
SLT Crew Cab 147"	5.3L V8	RWD	9,400 lbs.
SLT Crew Cab 147"	5.3L V8	4WD	9,200 lbs.
SLT Crew Cab 157"	5.3L V8	4WD	9,000 lbs.
AT4 Crew Cab 147"	3.0L I6	4WD	8,800 lbs.
AT4 Crew Cab 157"	3.0L I6	4WD	8,700 lbs.
AT4X Crew Cab 147"	3.0L I6	4WD	8,800 lbs.
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	8,900 lbs.