Specifications Comparison: 2003 Dodge Ram 3500 vs 2023 Dodge Ram 3500

Headroom

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
Quad Cab Laramie	5.9L I6	RWD	40.8	40
Quad Cab Laramie	5.9L I6	4WD	40.8	40
Quad Cab SLT	5.9L I6	RWD	40.8	40
Quad Cab SLT	5.9L I6	4WD	40.8	40
Quad Cab ST	5.9L I6	RWD	40.8	40
Quad Cab ST	5.9L I6	4WD	40.8	40
Regular Cab Laramie	8.0L V8	RWD	40.9
Regular Cab Laramie	8.0L V8	4WD	40.9
Regular Cab SLT	8.0L V8	RWD	40.9
Regular Cab SLT	8.0L V8	4WD	40.9
Regular Cab ST	5.7L V8	RWD	40.9
Regular Cab ST	5.7L V8	4WD	40.9

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
Big Horn Crew Cab 6'4" Box	6.4L V8	RWD	40	39
Big Horn Crew Cab 8' Box	6.4L V8	RWD	40	39
Big Horn Reg Cab 8' Box	6.4L V8	RWD	39
Big Horn Crew Cab 6'4" Box	6.4L V8	4WD	40	39
Big Horn Crew Cab 8' Box	6.4L V8	4WD	40	39
Big Horn Reg Cab 8' Box	6.4L V8	4WD	39
Laramie Crew Cab 6'4" Box	6.4L V8	RWD	40	39
Laramie Crew Cab 8' Box	6.4L V8	RWD	40	39
Laramie Crew Cab 6'4" Box	6.4L V8	4WD	40	39
Laramie Crew Cab 8' Box	6.4L V8	4WD	40	39
Laramie Mega Cab 6'4" Box	6.4L V8	4WD	40	40
Limited Crew Cab 6'4" Box	6.7L I6	4WD	40	39
Limited Crew Cab 8' Box	6.7L I6	4WD	40	39
Limited Mega Cab 6'4" Box	6.4L V8	4WD	40	40
Lone Star Crew Cab 6'4" Box	6.4L V8	RWD	40	39
Lone Star Crew Cab 8' Box	6.4L V8	RWD	40	39
Lone Star Reg Cab 8' Box	6.4L V8	RWD	39
Lone Star Crew Cab 6'4" Box	6.4L V8	4WD	40	39
Lone Star Crew Cab 8' Box	6.4L V8	4WD	40	39
Lone Star Reg Cab 8' Box	6.4L V8	4WD	39
Longhorn Crew Cab 6'4" Box	6.7L I6	4WD	40	39
Longhorn Crew Cab 8' Box	6.7L I6	4WD	40	39
Longhorn Mega Cab 6'4" Box	6.4L V8	4WD	40	40
Tradesman Crew Cab 6'4" Box	V8	RWD	40	39
Tradesman Crew Cab 8' Box	V8	RWD	40	39
Tradesman Reg Cab 8' Box	6.4L V8	RWD	39
Tradesman Crew Cab 6'4" Box	V8	4WD	40	39
Tradesman Crew Cab 8' Box	V8	4WD	40	39
Tradesman Reg Cab 8' Box	6.4L V8	4WD	39

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
Quad Cab Laramie	5.9L I6	RWD	103.6	101.6
Quad Cab Laramie	5.9L I6	4WD	103.6	101.6
Quad Cab SLT	5.9L I6	RWD	103.6	101.6
Quad Cab SLT	5.9L I6	4WD	103.6	101.6
Quad Cab ST	5.9L I6	RWD	103.6	101.6
Quad Cab ST	5.9L I6	4WD	103.6	101.6
Regular Cab Laramie	8.0L V8	RWD	103.9
Regular Cab Laramie	8.0L V8	4WD	103.9
Regular Cab SLT	8.0L V8	RWD	103.9
Regular Cab SLT	8.0L V8	4WD	103.9
Regular Cab ST	5.7L V8	RWD	103.9
Regular Cab ST	5.7L V8	4WD	103.9

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
Big Horn Crew Cab 6'4" Box	6.4L V8	RWD	101	99
Big Horn Crew Cab 8' Box	6.4L V8	RWD	101	99
Big Horn Reg Cab 8' Box	6.4L V8	RWD	99
Big Horn Crew Cab 6'4" Box	6.4L V8	4WD	101	99
Big Horn Crew Cab 8' Box	6.4L V8	4WD	101	99
Big Horn Reg Cab 8' Box	6.4L V8	4WD	99
Laramie Crew Cab 6'4" Box	6.4L V8	RWD	101	99
Laramie Crew Cab 8' Box	6.4L V8	RWD	101	99
Laramie Crew Cab 6'4" Box	6.4L V8	4WD	101	99
Laramie Crew Cab 8' Box	6.4L V8	4WD	101	99
Laramie Mega Cab 6'4" Box	6.4L V8	4WD	101	101
Limited Crew Cab 6'4" Box	6.7L I6	4WD	101	99
Limited Crew Cab 8' Box	6.7L I6	4WD	101	99
Limited Mega Cab 6'4" Box	6.4L V8	4WD	101	101
Lone Star Crew Cab 6'4" Box	6.4L V8	RWD	101	99
Lone Star Crew Cab 8' Box	6.4L V8	RWD	101	99
Lone Star Reg Cab 8' Box	6.4L V8	RWD	99
Lone Star Crew Cab 6'4" Box	6.4L V8	4WD	101	99
Lone Star Crew Cab 8' Box	6.4L V8	4WD	101	99
Lone Star Reg Cab 8' Box	6.4L V8	4WD	99
Longhorn Crew Cab 6'4" Box	6.7L I6	4WD	101	99
Longhorn Crew Cab 8' Box	6.7L I6	4WD	101	99
Longhorn Mega Cab 6'4" Box	6.4L V8	4WD	101	101
Tradesman Crew Cab 6'4" Box	V8	RWD	101	99
Tradesman Crew Cab 8' Box	V8	RWD	101	99
Tradesman Reg Cab 8' Box	6.4L V8	RWD	99
Tradesman Crew Cab 6'4" Box	V8	4WD	101	99
Tradesman Crew Cab 8' Box	V8	4WD	101	99
Tradesman Reg Cab 8' Box	6.4L V8	4WD	99