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

Towing Capacity

Trim	Engine	Drive train	Towing Capacity (lbs)
Crew Cab	2.7L	RWD	7,600 lbs.
Crew Cab	2.7L	4WD	7,400 lbs.
Crew Cab AT4	6.2L V8	4WD	9,200 lbs.
Crew Cab Denali	3.0L I6	RWD	9,500 lbs.
Crew Cab Denali	6.2L V8	4WD	9,100 lbs.
Crew Cab Elevation	3.0L I6	RWD	9,100 lbs.
Crew Cab Elevation 3VL	2.7L	4WD	8,900 lbs.
Crew Cab Elevation	3.0L I6	4WD	8,900 lbs.
Crew Cab SLE	3.0L I6	RWD	9,100 lbs.
Crew Cab SLE	3.0L I6	4WD	8,900 lbs.
Crew Cab SLT	3.0L I6	RWD	9,500 lbs.
Crew Cab SLT	3.0L V8	4WD	9,200 lbs.
Extended Cab	2.7L	RWD	7,600 lbs.
Extended Cab	2.7L	4WD	7,400 lbs.
Extended Cab Elevation	3.0L I6	RWD	9,200 lbs.
Extended Cab Elevation 3VL	2.7L	4WD	9,000 lbs.
Extended Cab Elevation	3.0L I6	4WD	9,000 lbs.
Extended Cab SLE	3.0L I6	RWD	9,200 lbs.
Extended Cab SLE	3.0L I6	4WD	9,000 lbs.
Regular Cab	5.3L V8	RWD	7,800 lbs.
Regular Cab	5.3L V8	4WD	7,600 lbs.

Trim	Engine	Drive train	Towing Capacity (lbs)
Custom Crew Cab 147"	2.7L	RWD	9,300 lbs.
Custom Double Cab 147"	2.7L	RWD	9,300 lbs.
Custom Crew Cab 147"	2.7L	4WD	9,000 lbs.
Custom Crew Cab 157"	2.7L	4WD	9,000 lbs.
Custom Double Cab 147"	2.7L	4WD	9,000 lbs.
High Country Crew Cab 147"	5.3L V8	RWD	9,500 lbs.
High Country Crew Cab 147"	5.3L V8	4WD	9,300 lbs.
High Country Crew Cab 157"	5.3L V8	4WD	9,200 lbs.
LT Crew Cab 147"	2.7L	RWD	9,300 lbs.
LT Crew Cab 157"	2.7L	RWD	9,100 lbs.
LT Double Cab 147"	2.7L	RWD	9,300 lbs.
LT Crew Cab 147" w/1LT	2.7L	4WD	9,000 lbs.
LT Crew Cab 147" w/2FL	2.7L	4WD	9,000 lbs.
LT Crew Cab 157"	2.7L	4WD	9,000 lbs.
LT Double Cab 147" w/1LT	2.7L	4WD	9,000 lbs.
LT Double Cab 147" w/2FL	2.7L	4WD	9,000 lbs.
LTZ Crew Cab 147"	5.3L V8	RWD	9,500 lbs.
LTZ Crew Cab 147"	5.3L V8	4WD	9,300 lbs.
LTZ Crew Cab 157"	5.3L V8	4WD	9,200 lbs.
RST Crew Cab 147"	2.7L	RWD	9,300 lbs.
RST Crew Cab 147"	2.7L	4WD	9,000 lbs.
RST Crew Cab 157"	2.7L	4WD	9,000 lbs.
RST Double Cab 147"	2.7L	4WD	9,000 lbs.
Work Crew Cab 147"	2.7L	RWD	9,300 lbs.
Work Crew Cab 157"	2.7L	RWD	9,100 lbs.
Work Double Cab 147"	2.7L	RWD	9,300 lbs.
Work Reg Cab 126"	2.7L	RWD	9,100 lbs.
Work Reg Cab 140"	2.7L	RWD	9,500 lbs.
Work Crew Cab 147"	2.7L	4WD	9,000 lbs.
Work Crew Cab 157"	2.7L	4WD	9,000 lbs.
Work Double Cab 147"	2.7L	4WD	9,000 lbs.
Work Reg Cab 126"	2.7L	4WD	8,900 lbs.
Work Reg Cab 140"	2.7L	4WD	9,300 lbs.
Custom Trail Boss Crew Cab 147"	2.7L	4WD	9,000 lbs.
Custom Trail Boss Crew Cab 157"	2.7L	4WD	9,000 lbs.
LT Trail Boss Crew Cab 147"	2.7L	4WD	9,000 lbs.
LT Trail Boss Crew Cab 157"	2.7L	4WD	9,000 lbs.
ZR2 Crew Cab 147"	3.0L I6	4WD	8,700 lbs.