Specifications Comparison: 2021 Chevrolet Silverado 3500 vs 2006 Chevrolet Silverado 3500

Legroom

Trim	Eng.	Drive train	1st Row Legroom (in)	2nd Row Legroom (in)
HD Crew Cab High Country	6.6L V8	4WD	44	43
HD Crew Cab High Country	6.6L V8	4WD	44	43
HD Crew Cab LT	6.6L V8	RWD	44	43
HD Crew Cab LT	6.6L V8	RWD	44	43
HD Crew Cab LT	6.6L V8	4WD	44	43
HD Crew Cab LT	6.6L V8	4WD	44	43
HD Crew Cab LTZ	6.6L V8	RWD	44	43
HD Crew Cab LTZ	6.6L V8	RWD	44	43
HD Crew Cab LTZ	6.6L V8	4WD	44	43
HD Crew Cab LTZ	6.6L V8	4WD	44	43
HD Crew Cab Work	6.6L V8	RWD	44	43
HD Crew Cab Work	6.6L V8	RWD	44	43
HD Crew Cab Work	6.6L V8	4WD	44	43
HD Crew Cab Work	6.6L V8	4WD	44	43
HD Extended Cab LT	6.6L V8	RWD	44	35
HD Extended Cab LT	6.6L V8	RWD	44	35
HD Extended Cab LT	6.6L V8	4WD	44	35
HD Extended Cab LT	6.6L V8	4WD	44	35
HD Extended Cab Work	6.6L V8	RWD	44	35
HD Extended Cab Work	6.6L V8	RWD	44	35
HD Extended Cab Work	6.6L V8	4WD	44	35
HD Extended Cab Work	6.6L V8	4WD	44	35
HD Regular Cab LT	6.6L V8	RWD	44
HD Regular Cab LT	6.6L V8	RWD	44
HD Regular Cab LT	6.6L V8	4WD	44
HD Regular Cab LT	6.6L V8	4WD	44
HD Regular Cab Work	6.6L V8	RWD	44
HD Regular Cab Work	6.6L V8	RWD	44
HD Regular Cab Work	6.6L V8	4WD	44
HD Regular Cab Work	6.6L V8	4WD	44

Trim	Eng.	Drive train	1st Row Legroom (in)	2nd Row Legroom (in)
Crew Cab LS	V8	RWD	41.3	39.1
Crew Cab LS	V8	4WD	41.3	39.1
Crew Cab LT	V8	RWD	41.3	39.1
Crew Cab LT	V8	4WD	41.3	39.1
Extended Cab LS	V8	RWD	41.3	33.7
Extended Cab LS	V8	4WD	41.3	33.7
Extended Cab LT	V8	RWD	41.3	33.7
Extended Cab LT	V8	4WD	41.3	33.7
Regular Cab LS	V8	RWD	41.3
Regular Cab LS	V8	4WD	41.3
Regular Cab LT	V8	RWD	41.3
Regular Cab LT	V8	4WD	41.3

Trim	Eng.	Drive train	1st Row Legroom (cm)	2nd Row Legroom (cm)
HD Crew Cab High Country	6.6L V8	4WD	111	109
HD Crew Cab High Country	6.6L V8	4WD	111	109
HD Crew Cab LT	6.6L V8	RWD	111	109
HD Crew Cab LT	6.6L V8	RWD	111	109
HD Crew Cab LT	6.6L V8	4WD	111	109
HD Crew Cab LT	6.6L V8	4WD	111	109
HD Crew Cab LTZ	6.6L V8	RWD	111	109
HD Crew Cab LTZ	6.6L V8	RWD	111	109
HD Crew Cab LTZ	6.6L V8	4WD	111	109
HD Crew Cab LTZ	6.6L V8	4WD	111	109
HD Crew Cab Work	6.6L V8	RWD	111	109
HD Crew Cab Work	6.6L V8	RWD	111	109
HD Crew Cab Work	6.6L V8	4WD	111	109
HD Crew Cab Work	6.6L V8	4WD	111	109
HD Extended Cab LT	6.6L V8	RWD	111	88
HD Extended Cab LT	6.6L V8	RWD	111	88
HD Extended Cab LT	6.6L V8	4WD	111	88
HD Extended Cab LT	6.6L V8	4WD	111	88
HD Extended Cab Work	6.6L V8	RWD	111	88
HD Extended Cab Work	6.6L V8	RWD	111	88
HD Extended Cab Work	6.6L V8	4WD	111	88
HD Extended Cab Work	6.6L V8	4WD	111	88
HD Regular Cab LT	6.6L V8	RWD	111
HD Regular Cab LT	6.6L V8	RWD	111
HD Regular Cab LT	6.6L V8	4WD	111
HD Regular Cab LT	6.6L V8	4WD	111
HD Regular Cab Work	6.6L V8	RWD	111
HD Regular Cab Work	6.6L V8	RWD	111
HD Regular Cab Work	6.6L V8	4WD	111
HD Regular Cab Work	6.6L V8	4WD	111

Trim	Eng.	Drive train	1st Row Legroom (cm)	2nd Row Legroom (cm)
Crew Cab LS	V8	RWD	104.9	99.3
Crew Cab LS	V8	4WD	104.9	99.3
Crew Cab LT	V8	RWD	104.9	99.3
Crew Cab LT	V8	4WD	104.9	99.3
Extended Cab LS	V8	RWD	104.9	85.6
Extended Cab LS	V8	4WD	104.9	85.6
Extended Cab LT	V8	RWD	104.9	85.6
Extended Cab LT	V8	4WD	104.9	85.6
Regular Cab LS	V8	RWD	104.9
Regular Cab LS	V8	4WD	104.9
Regular Cab LT	V8	RWD	104.9
Regular Cab LT	V8	4WD	104.9