Model year 2020 · T1 (2019–present)

2020 GMC Sierra 1500 specs

The 2020 GMC Sierra 1500 tows 6,600–12,100 lb, carries 1,740–2,240 lb of payload and measures 229.5–241.3 in long, by configuration, per GMC’s own documents.

We hold 37 configurations of the 2020 Sierra 1500, and GMC gives a figure for every one.

Retail configurations: 37
Documents: 2

01 / Configurations

Every 2020 Sierra 1500 configuration

37 retail configurations sold in 2020, each with the figures GMC publishes for it. A number a factory package raises shows under the configuration’s own. GMC gives figures for weights, dimensions and towing.

202037 configurations

2020 GMC Sierra 1500 T1: every configuration with its numbers
Configuration	Max towing	Max payload
Crew Cab Short Bed 2WD 4.3L V6	7,700 lb	2,030 lb
Crew Cab Short Bed 4WD 4.3L V6	7,500 lb	2,010 lb
Crew Cab Standard Bed 2WD 4.3L V6	7,600 lb	1,950 lb
Crew Cab Standard Bed 4WD 4.3L V6	7,400 lb	1,960 lb
Double Cab Standard Bed 2WD 4.3L V6	7,700 lb	2,030 lb
Double Cab Standard Bed 4WD 4.3L V6	7,500 lb	2,020 lb
Regular Cab Long Bed 2WD 4.3L V6	7,900 lb	2,240 lb
Regular Cab Long Bed 4WD 4.3L V6	7,700 lb	2,120 lb
Crew Cab Short Bed 2WD 2.7L Turbo	6,800 lb	2,060 lb
Crew Cab Short Bed 4WD 2.7L Turbo	6,600 lb	2,030 lb
Crew Cab Standard Bed 2WD 2.7L Turbo	6,800 lb	1,980 lb
Crew Cab Standard Bed 4WD 2.7L Turbo	6,600 lb	1,990 lb
Double Cab Standard Bed 2WD 2.7L Turbo	6,900 lb	2,060 lb
Double Cab Standard Bed 4WD 2.7L Turbo	6,700 lb	2,040 lb
Crew Cab Short Bed 2WD 5.3L V8 (base Sierra)	9,800 lb	2,060 lb
Crew Cab Short Bed 4WD 5.3L V8 (base Sierra)	9,600 lb	2,040 lb
Crew Cab Standard Bed 2WD 5.3L V8 (base Sierra)	9,700 lb	1,990 lb
Crew Cab Standard Bed 4WD 5.3L V8 (base Sierra)	9,500 lb	1,990 lb
Double Cab Standard Bed 2WD 5.3L V8 (base Sierra)	9,800 lb	1,960 lb
Double Cab Standard Bed 4WD 5.3L V8 (base Sierra)	9,600 lb	1,950 lb
Regular Cab Long Bed 2WD 5.3L V8 (base Sierra)	10,000 lb	2,180 lb
Regular Cab Long Bed 4WD 5.3L V8 (base Sierra)	9,800 lb	2,060 lb
Crew Cab Short Bed 2WD 5.3L V8	9,600 lb11,300 lb¹	—2,140 lb¹
Crew Cab Short Bed 4WD 5.3L V8	9,300 lb11,100 lb¹	2,120 lb
Crew Cab Standard Bed 2WD 5.3L V8	9,500 lb11,300 lb¹	—2,070 lb¹
Crew Cab Standard Bed 4WD 5.3L V8	9,200 lb11,000 lb¹	—2,080 lb¹
Double Cab Standard Bed 2WD 5.3L V8	9,600 lb11,300 lb¹	—2,170 lb¹
Double Cab Standard Bed 4WD 5.3L V8	9,300 lb11,100 lb¹	—2,150 lb¹
Crew Cab Short Bed 4WD 6.2L V8	8,800 lb12,000 lb¹	—2,000 lb¹
Crew Cab Standard Bed 4WD 6.2L V8	9,000 lb12,000 lb¹	—1,950 lb¹
Double Cab Standard Bed 4WD 6.2L V8	9,300 lb12,100 lb¹	—2,070 lb¹
Crew Cab Short Bed 2WD 3.0L Duramax diesel	7,400 lb	1,830 lb
Crew Cab Short Bed 4WD 3.0L Duramax diesel	9,000 lb	1,810 lb
Crew Cab Standard Bed 2WD 3.0L Duramax diesel	7,300 lb	1,750 lb
Crew Cab Standard Bed 4WD 3.0L Duramax diesel	9,000 lb	1,760 lb
Double Cab Standard Bed 2WD 3.0L Duramax diesel	7,400 lb	1,750 lb
Double Cab Standard Bed 4WD 3.0L Duramax diesel	9,100 lb	1,740 lb

MakerSource: 2020 GMC Trailering Guide (Sierra 1500 section)

¹ With the Max Trailering Package: the maker’s figure for the configuration with that factory option.

A dash means the maker’s documents we have don’t give that number for that configuration, and a column with no number for any configuration of the year isn’t shown. “Door label” means the maker prints it only on each vehicle’s certification label, and “not published” that the maker doesn’t print it, or points elsewhere. “Up to” is a ceiling the maker prints over several configurations; a range is the maker’s own, printed across the grades of that configuration.

02 / What changed

New for 2020

The 2020 Sierra 1500 against the 2019, the previous model year we hold. Only what GMC’s documents show: nothing here is inferred.

Added: 37 configurations (Crew Cab Short Bed 2WD 4.3L V6, Crew Cab Short Bed 4WD 4.3L V6, Crew Cab Standard Bed 2WD 4.3L V6, Crew Cab Standard Bed 4WD 4.3L V6, Double Cab Standard Bed 2WD 4.3L V6 and 32 more).
Dropped: 6 configurations (Crew Cab Standard Bed 2WD, Crew Cab Standard Bed 4WD, Crew Cab Short Bed 2WD, Crew Cab Short Bed 4WD, Double Cab Standard Bed 2WD and 1 more).
Length: 229.5–241.3 in (2019: 231.9–241.3 in).

03 / Sources

The 2020 documents

2 documents behind the 2020 Sierra 1500’s figures. The maker’s own come first; a third-party page fills in only a number the maker doesn’t publish, and wears its own mark.

Documents last checked Oct 12, 2026. How we read them and what the marks mean: how we source the numbers. A figure doesn’t match its document? Report a wrong number.

04 / Keep going

More on the Sierra 1500

Sierra 1500 T1Every T1 configuration, model year by model year, with clearance, angles and weights (2019–present).Open the T1 specs 2020 Sierra 1500 towingMax towing, GCWR, payload and tongue weight for every rated configuration.See the towing table Sierra 1500 specsEvery generation, the spec plate and the rig builder.Open the model page

These are GMC’s published figures for the models it describes, not a weighbridge or a tape measure; your own vehicle’s options change them. Found a figure that doesn’t match the document? Tell us.