Specifications Comparison: 2021 Chevrolet Silverado 3500 vs 2018 Chevrolet Silverado 3500

Headroom

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
HD Crew Cab High Country	6.6L V8	4WD	43	40
HD Crew Cab High Country	6.6L V8	4WD	43	40
HD Crew Cab LT	6.6L V8	RWD	43	40
HD Crew Cab LT	6.6L V8	RWD	43	40
HD Crew Cab LT	6.6L V8	4WD	43	40
HD Crew Cab LT	6.6L V8	4WD	43	40
HD Crew Cab LTZ	6.6L V8	RWD	43	40
HD Crew Cab LTZ	6.6L V8	RWD	43	40
HD Crew Cab LTZ	6.6L V8	4WD	43	40
HD Crew Cab LTZ	6.6L V8	4WD	43	40
HD Crew Cab Work	6.6L V8	RWD	43	40
HD Crew Cab Work	6.6L V8	RWD	43	40
HD Crew Cab Work	6.6L V8	4WD	43	40
HD Crew Cab Work	6.6L V8	4WD	43	40
HD Extended Cab LT	6.6L V8	RWD	43	39
HD Extended Cab LT	6.6L V8	RWD	43	39
HD Extended Cab LT	6.6L V8	4WD	43	39
HD Extended Cab LT	6.6L V8	4WD	43	39
HD Extended Cab Work	6.6L V8	RWD	43	39
HD Extended Cab Work	6.6L V8	RWD	43	39
HD Extended Cab Work	6.6L V8	4WD	43	39
HD Extended Cab Work	6.6L V8	4WD	43	39
HD Regular Cab LT	6.6L V8	RWD	43
HD Regular Cab LT	6.6L V8	RWD	43
HD Regular Cab LT	6.6L V8	4WD	43
HD Regular Cab LT	6.6L V8	4WD	43
HD Regular Cab Work	6.6L V8	RWD	43
HD Regular Cab Work	6.6L V8	RWD	43
HD Regular Cab Work	6.6L V8	4WD	43
HD Regular Cab Work	6.6L V8	4WD	43

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
HD Crew Cab High Country	6.0L V8	RWD	42.8	40.5
HD Crew Cab High Country	6.0L V8	4WD	42.8	40.5
HD Crew Cab LT	6.0L V8	RWD	42.8	40.5
HD Crew Cab LT	6.0L V8	4WD	42.8	40.5
HD Crew Cab LTZ	6.0L V8	RWD	42.8	40.5
HD Crew Cab LTZ	6.0L V8	4WD	42.8	40.5
HD Crew Cab Work	6.0L V8	RWD	42.8	40.5
HD Crew Cab Work	6.0L V8	4WD	42.8	40.5
HD Extended Cab LT	6.0L V8	RWD	42.8	38.7
HD Extended Cab LT	6.0L V8	4WD	42.8	38.7
HD Extended Cab LTZ	6.0L V8	RWD	42.8	38.7
HD Extended Cab LTZ	6.0L V8	4WD	42.8	38.7
HD Extended Cab Work	6.0L V8	RWD	42.8	38.7
HD Extended Cab Work	6.0L V8	4WD	42.8	38.7
HD Regular Cab LT	6.0L V8	RWD	42.8
HD Regular Cab LT	6.0L V8	4WD	42.8
HD Regular Cab Work	6.0L V8	RWD	42.8
HD Regular Cab Work	6.0L V8	4WD	42.8

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
HD Crew Cab High Country	6.6L V8	4WD	109	101
HD Crew Cab High Country	6.6L V8	4WD	109	101
HD Crew Cab LT	6.6L V8	RWD	109	101
HD Crew Cab LT	6.6L V8	RWD	109	101
HD Crew Cab LT	6.6L V8	4WD	109	101
HD Crew Cab LT	6.6L V8	4WD	109	101
HD Crew Cab LTZ	6.6L V8	RWD	109	101
HD Crew Cab LTZ	6.6L V8	RWD	109	101
HD Crew Cab LTZ	6.6L V8	4WD	109	101
HD Crew Cab LTZ	6.6L V8	4WD	109	101
HD Crew Cab Work	6.6L V8	RWD	109	101
HD Crew Cab Work	6.6L V8	RWD	109	101
HD Crew Cab Work	6.6L V8	4WD	109	101
HD Crew Cab Work	6.6L V8	4WD	109	101
HD Extended Cab LT	6.6L V8	RWD	109	99
HD Extended Cab LT	6.6L V8	RWD	109	99
HD Extended Cab LT	6.6L V8	4WD	109	99
HD Extended Cab LT	6.6L V8	4WD	109	99
HD Extended Cab Work	6.6L V8	RWD	109	99
HD Extended Cab Work	6.6L V8	RWD	109	99
HD Extended Cab Work	6.6L V8	4WD	109	99
HD Extended Cab Work	6.6L V8	4WD	109	99
HD Regular Cab LT	6.6L V8	RWD	109
HD Regular Cab LT	6.6L V8	RWD	109
HD Regular Cab LT	6.6L V8	4WD	109
HD Regular Cab LT	6.6L V8	4WD	109
HD Regular Cab Work	6.6L V8	RWD	109
HD Regular Cab Work	6.6L V8	RWD	109
HD Regular Cab Work	6.6L V8	4WD	109
HD Regular Cab Work	6.6L V8	4WD	109

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
HD Crew Cab High Country	6.0L V8	RWD	108.7	102.9
HD Crew Cab High Country	6.0L V8	4WD	108.7	102.9
HD Crew Cab LT	6.0L V8	RWD	108.7	102.9
HD Crew Cab LT	6.0L V8	4WD	108.7	102.9
HD Crew Cab LTZ	6.0L V8	RWD	108.7	102.9
HD Crew Cab LTZ	6.0L V8	4WD	108.7	102.9
HD Crew Cab Work	6.0L V8	RWD	108.7	102.9
HD Crew Cab Work	6.0L V8	4WD	108.7	102.9
HD Extended Cab LT	6.0L V8	RWD	108.7	98.3
HD Extended Cab LT	6.0L V8	4WD	108.7	98.3
HD Extended Cab LTZ	6.0L V8	RWD	108.7	98.3
HD Extended Cab LTZ	6.0L V8	4WD	108.7	98.3
HD Extended Cab Work	6.0L V8	RWD	108.7	98.3
HD Extended Cab Work	6.0L V8	4WD	108.7	98.3
HD Regular Cab LT	6.0L V8	RWD	108.7
HD Regular Cab LT	6.0L V8	4WD	108.7
HD Regular Cab Work	6.0L V8	RWD	108.7
HD Regular Cab Work	6.0L V8	4WD	108.7