Specifications Comparison: 2006 Chevrolet Silverado 3500 vs 2023 Chevrolet Silverado 3500

Legroom

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 (in)	2nd Row Legroom (in)
HD LT Crew Cab 159"	6.6L V8	RWD	44	43
HD LT Crew Cab 172"	6.6L V8	RWD	44	43
HD LT Crew Cab 159"	6.6L V8	4WD	44	43
HD LT Crew Cab 172"	6.6L V8	4WD	44	43
HD LT Double Cab 162"	6.6L V8	4WD	44	35
HD LT Reg Cab 142"	6.6L V8	4WD	44
HD LTZ Crew Cab 159"	6.6L V8	RWD	44	43
HD LTZ Crew Cab 172"	6.6L V8	RWD	44	43
HD LTZ Crew Cab 159"	6.6L V8	4WD	44	43
HD LTZ Crew Cab 172"	6.6L V8	4WD	44	43
HD Work Crew Cab 159"	6.6L V8	RWD	44	43
HD Work Crew Cab 172"	6.6L V8	RWD	44	43
HD Work Double Cab 162"	6.6L V8	RWD	44	35
HD Work Reg Cab 142"	6.6L V8	RWD	44
HD Work Crew Cab 159"	6.6L V8	4WD	44	43
HD Work Crew Cab 172"	6.6L V8	4WD	44	43
HD Work Double Cab 162"	6.6L V8	4WD	44	35
HD Work Reg Cab 142"	6.6L V8	4WD	44
HD High Country Crew Cab 159"	6.6L V8	4WD	44	43
HD High Country Crew Cab 172"	6.6L V8	4WD	44	43
HD LT Double Cab 162"	6.6L V8	RWD	44.53	35.24
HD LT Reg Cab 142"	6.6L V8	RWD	44.53

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

Trim	Eng.	Drive train	1st Row Legroom (cm)	2nd Row Legroom (cm)
HD LT Crew Cab 159"	6.6L V8	RWD	111	109
HD LT Crew Cab 172"	6.6L V8	RWD	111	109
HD LT Crew Cab 159"	6.6L V8	4WD	111	109
HD LT Crew Cab 172"	6.6L V8	4WD	111	109
HD LT Double Cab 162"	6.6L V8	4WD	111	88
HD LT Reg Cab 142"	6.6L V8	4WD	111
HD LTZ Crew Cab 159"	6.6L V8	RWD	111	109
HD LTZ Crew Cab 172"	6.6L V8	RWD	111	109
HD LTZ Crew Cab 159"	6.6L V8	4WD	111	109
HD LTZ Crew Cab 172"	6.6L V8	4WD	111	109
HD Work Crew Cab 159"	6.6L V8	RWD	111	109
HD Work Crew Cab 172"	6.6L V8	RWD	111	109
HD Work Double Cab 162"	6.6L V8	RWD	111	88
HD Work Reg Cab 142"	6.6L V8	RWD	111
HD Work Crew Cab 159"	6.6L V8	4WD	111	109
HD Work Crew Cab 172"	6.6L V8	4WD	111	109
HD Work Double Cab 162"	6.6L V8	4WD	111	88
HD Work Reg Cab 142"	6.6L V8	4WD	111
HD High Country Crew Cab 159"	6.6L V8	4WD	111	109
HD High Country Crew Cab 172"	6.6L V8	4WD	111	109
HD LT Double Cab 162"	6.6L V8	RWD	113	90
HD LT Reg Cab 142"	6.6L V8	RWD	113