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Specifications Comparison: 2020 GMC Sierra 2500 vs 2021 GMC Sierra 2500

Researched By The AutoPadre Staff

Legroom

2020 GMC Sierra 2500

Legroom (Imp.)

Trim Eng. Drive train 1st Row Legroom (in) 2nd Row Legroom (in) 3rd Row Legroom (in) 4th Row Legroom (in) 5th Row Legroom (in)
HD 2500 Crew Cab 159" AT46.6L V84WD44.543.4
HD 2500 Crew Cab 172" AT46.6L V84WD44.543.4
HD 2500 Crew Cab 159"6.6L V8RWD44.543.4
HD 2500 Crew Cab 172"6.6L V8RWD44.543.4
HD 2500 Double Cab 149"6.6L V8RWD44.535.2
HD 2500 Double Cab 162"6.6L V8RWD44.535.2
HD 2500 Reg Cab 142"6.6L V8RWD44.5
HD 2500 Crew Cab 159"6.6L V84WD44.543.4
HD 2500 Crew Cab 172"6.6L V84WD44.543.4
HD 2500 Double Cab 149"6.6L V84WD44.535.2
HD 2500 Double Cab 162"6.6L V84WD44.535.2
HD 2500 Reg Cab 142"6.6L V84WD44.5
HD 2500 Crew Cab 159" Denali6.6L V84WD44.543.4
HD 2500 Crew Cab 172" Denali6.6L V84WD44.543.4
HD 2500 Crew Cab 159" SLE6.6L V8RWD44.543.4
HD 2500 Crew Cab 172" SLE6.6L V8RWD44.543.4
HD 2500 Double Cab 149" SLE6.6L V8RWD44.535.2
HD 2500 Double Cab 162" SLE6.6L V8RWD44.535.2
HD 2500 Reg Cab 142" SLE6.6L V8RWD44.5
HD 2500 Crew Cab 159" SLE6.6L V84WD44.543.4
HD 2500 Crew Cab 172" SLE6.6L V84WD44.543.4
HD 2500 Double Cab 149" SLE6.6L V84WD44.535.2
HD 2500 Double Cab 162" SLE6.6L V84WD44.535.2
HD 2500 Reg Cab 142" SLE6.6L V84WD44.5
HD 2500 Crew Cab 159" SLT6.6L V8RWD44.543.4
HD 2500 Crew Cab 172" SLT6.6L V8RWD44.543.4
HD 2500 Double Cab 149" SLT6.6L V8RWD44.535.2
HD 2500 Double Cab 162" SLT6.6L V8RWD44.535.2
HD 2500 Crew Cab 159" SLT6.6L V84WD44.543.4
HD 2500 Crew Cab 172" SLT6.6L V84WD44.543.4
HD 2500 Double Cab 149" SLT6.6L V84WD44.535.2
HD 2500 Double Cab 162" SLT6.6L V84WD44.535.2
HD 2500 Crew Cab6.6L V8RWD44.543.4
HD 2500 Crew Cab6.6L V84WD44.543.4
HD 2500 Crew Cab AT46.6L V84WD44.543.4
HD 2500 Crew Cab Denali6.6L V84WD44.543.4
HD 2500 Crew Cab SLE6.6L V8RWD44.543.4
HD 2500 Crew Cab SLE6.6L V84WD44.543.4
HD 2500 Crew Cab SLT6.6L V8RWD44.543.4
HD 2500 Crew Cab SLT6.6L V84WD44.543.4
HD 2500 Extended Cab6.6L V8RWD44.535.2
HD 2500 Extended Cab6.6L V84WD44.535.2
HD 2500 Extended Cab SLE6.6L V8RWD44.535.2
HD 2500 Extended Cab SLE6.6L V84WD44.535.2
HD 2500 Extended Cab SLT6.6L V8RWD44.535.2
HD 2500 Extended Cab SLT6.6L V84WD44.535.2
HD 2500 Regular Cab6.6L V8RWD44.5
HD 2500 Regular Cab6.6L V84WD44.5
HD 2500 Regular Cab SLE6.6L V8RWD44.5
HD 2500 Regular Cab SLE6.6L V84WD44.5

2021 GMC Sierra 2500

Legroom (Imp.)

Trim Eng. Drive train 1st Row Legroom (in) 2nd Row Legroom (in) 3rd Row Legroom (in) 4th Row Legroom (in) 5th Row Legroom (in)
HD Crew Cab6.6L V8RWD4443
HD Crew Cab6.6L V8RWD4443
HD Crew Cab6.6L V84WD4443
HD Crew Cab6.6L V84WD4443
HD Crew Cab AT46.6L V84WD4443
HD Crew Cab AT46.6L V84WD4443
HD Crew Cab Denali6.6L V84WD4443
HD Crew Cab Denali6.6L V84WD4443
HD Crew Cab SLE6.6L V8RWD4443
HD Crew Cab SLE6.6L V8RWD4443
HD Crew Cab SLE6.6L V84WD4443
HD Crew Cab SLE6.6L V84WD4443
HD Crew Cab SLT6.6L V8RWD4443
HD Crew Cab SLT6.6L V8RWD4443
HD Crew Cab SLT6.6L V84WD4443
HD Crew Cab SLT6.6L V84WD4443
HD Extended Cab6.6L V8RWD4435
HD Extended Cab6.6L V8RWD4435
HD Extended Cab6.6L V84WD4435
HD Extended Cab6.6L V84WD4435
HD Extended Cab SLE6.6L V8RWD4435
HD Extended Cab SLE6.6L V8RWD4435
HD Extended Cab SLE6.6L V84WD4435
HD Extended Cab SLE6.6L V84WD4435
HD Extended Cab SLT6.6L V8RWD4435
HD Extended Cab SLT6.6L V8RWD4435
HD Extended Cab SLT6.6L V84WD4435
HD Extended Cab SLT6.6L V84WD4435
HD Regular Cab6.6L V8RWD44
HD Regular Cab6.6L V8RWD44
HD Regular Cab6.6L V84WD44
HD Regular Cab6.6L V84WD44
HD Regular Cab SLE6.6L V8RWD44
HD Regular Cab SLE6.6L V8RWD44
HD Regular Cab SLE6.6L V84WD44
HD Regular Cab SLE6.6L V84WD44

2020 GMC Sierra 2500

Legroom (Metric)

Trim Eng. Drive train 1st Row Legroom (cm) 2nd Row Legroom (cm) 3rd Row Legroom (cm) 4th Row Legroom (cm) 5th Row Legroom (cm)
HD 2500 Crew Cab 159" AT46.6L V84WD113110.2
HD 2500 Crew Cab 172" AT46.6L V84WD113110.2
HD 2500 Crew Cab 159"6.6L V8RWD113110.2
HD 2500 Crew Cab 172"6.6L V8RWD113110.2
HD 2500 Double Cab 149"6.6L V8RWD11389.4
HD 2500 Double Cab 162"6.6L V8RWD11389.4
HD 2500 Reg Cab 142"6.6L V8RWD113
HD 2500 Crew Cab 159"6.6L V84WD113110.2
HD 2500 Crew Cab 172"6.6L V84WD113110.2
HD 2500 Double Cab 149"6.6L V84WD11389.4
HD 2500 Double Cab 162"6.6L V84WD11389.4
HD 2500 Reg Cab 142"6.6L V84WD113
HD 2500 Crew Cab 159" Denali6.6L V84WD113110.2
HD 2500 Crew Cab 172" Denali6.6L V84WD113110.2
HD 2500 Crew Cab 159" SLE6.6L V8RWD113110.2
HD 2500 Crew Cab 172" SLE6.6L V8RWD113110.2
HD 2500 Double Cab 149" SLE6.6L V8RWD11389.4
HD 2500 Double Cab 162" SLE6.6L V8RWD11389.4
HD 2500 Reg Cab 142" SLE6.6L V8RWD113
HD 2500 Crew Cab 159" SLE6.6L V84WD113110.2
HD 2500 Crew Cab 172" SLE6.6L V84WD113110.2
HD 2500 Double Cab 149" SLE6.6L V84WD11389.4
HD 2500 Double Cab 162" SLE6.6L V84WD11389.4
HD 2500 Reg Cab 142" SLE6.6L V84WD113
HD 2500 Crew Cab 159" SLT6.6L V8RWD113110.2
HD 2500 Crew Cab 172" SLT6.6L V8RWD113110.2
HD 2500 Double Cab 149" SLT6.6L V8RWD11389.4
HD 2500 Double Cab 162" SLT6.6L V8RWD11389.4
HD 2500 Crew Cab 159" SLT6.6L V84WD113110.2
HD 2500 Crew Cab 172" SLT6.6L V84WD113110.2
HD 2500 Double Cab 149" SLT6.6L V84WD11389.4
HD 2500 Double Cab 162" SLT6.6L V84WD11389.4
HD 2500 Crew Cab6.6L V8RWD113110.2
HD 2500 Crew Cab6.6L V84WD113110.2
HD 2500 Crew Cab AT46.6L V84WD113110.2
HD 2500 Crew Cab Denali6.6L V84WD113110.2
HD 2500 Crew Cab SLE6.6L V8RWD113110.2
HD 2500 Crew Cab SLE6.6L V84WD113110.2
HD 2500 Crew Cab SLT6.6L V8RWD113110.2
HD 2500 Crew Cab SLT6.6L V84WD113110.2
HD 2500 Extended Cab6.6L V8RWD11389.4
HD 2500 Extended Cab6.6L V84WD11389.4
HD 2500 Extended Cab SLE6.6L V8RWD11389.4
HD 2500 Extended Cab SLE6.6L V84WD11389.4
HD 2500 Extended Cab SLT6.6L V8RWD11389.4
HD 2500 Extended Cab SLT6.6L V84WD11389.4
HD 2500 Regular Cab6.6L V8RWD113
HD 2500 Regular Cab6.6L V84WD113
HD 2500 Regular Cab SLE6.6L V8RWD113
HD 2500 Regular Cab SLE6.6L V84WD113

2021 GMC Sierra 2500

Legroom (Metric)

Trim Eng. Drive train 1st Row Legroom (cm) 2nd Row Legroom (cm) 3rd Row Legroom (cm) 4th Row Legroom (cm) 5th Row Legroom (cm)
HD Crew Cab6.6L V8RWD111109
HD Crew Cab6.6L V8RWD111109
HD Crew Cab6.6L V84WD111109
HD Crew Cab6.6L V84WD111109
HD Crew Cab AT46.6L V84WD111109
HD Crew Cab AT46.6L V84WD111109
HD Crew Cab Denali6.6L V84WD111109
HD Crew Cab Denali6.6L V84WD111109
HD Crew Cab SLE6.6L V8RWD111109
HD Crew Cab SLE6.6L V8RWD111109
HD Crew Cab SLE6.6L V84WD111109
HD Crew Cab SLE6.6L V84WD111109
HD Crew Cab SLT6.6L V8RWD111109
HD Crew Cab SLT6.6L V8RWD111109
HD Crew Cab SLT6.6L V84WD111109
HD Crew Cab SLT6.6L V84WD111109
HD Extended Cab6.6L V8RWD11188
HD Extended Cab6.6L V8RWD11188
HD Extended Cab6.6L V84WD11188
HD Extended Cab6.6L V84WD11188
HD Extended Cab SLE6.6L V8RWD11188
HD Extended Cab SLE6.6L V8RWD11188
HD Extended Cab SLE6.6L V84WD11188
HD Extended Cab SLE6.6L V84WD11188
HD Extended Cab SLT6.6L V8RWD11188
HD Extended Cab SLT6.6L V8RWD11188
HD Extended Cab SLT6.6L V84WD11188
HD Extended Cab SLT6.6L V84WD11188
HD Regular Cab6.6L V8RWD111
HD Regular Cab6.6L V8RWD111
HD Regular Cab6.6L V84WD111
HD Regular Cab6.6L V84WD111
HD Regular Cab SLE6.6L V8RWD111
HD Regular Cab SLE6.6L V8RWD111
HD Regular Cab SLE6.6L V84WD111
HD Regular Cab SLE6.6L V84WD111

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