Specifications Comparison: 2002 GMC Sierra 3500 vs 2024 GMC Sierra 3500

Headroom

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
3500 Crew Cab SL	6.0L V8	RWD	41	39
3500 Crew Cab SL	6.0L V8	4WD	41	39
3500 Crew Cab SLE	6.0L V8	RWD	41	39
3500 Crew Cab SLE	6.0L V8	4WD	41	39
3500 Crew Cab SLT	6.0L V8	RWD	41	39
3500 Crew Cab SLT	6.0L V8	4WD	41	39
3500 Extended Cab SL	6.0L V8	RWD	41	38.4
3500 Extended Cab SL	6.0L V8	4WD	41	38.4
3500 Extended Cab SLE	6.0L V8	RWD	41	38.4
3500 Extended Cab SLE	6.0L V8	4WD	41	38.4
3500 Extended Cab SLT	6.0L V8	RWD	41	38.4
3500 Extended Cab SLT	6.0L V8	4WD	41	38.4
3500 Regular Cab SL	6.0L V8	4WD	41
3500 Regular Cab SLE	6.0L V8	4WD	41

Trim	Eng.	Drive train	1st Row Headroom (in)	2nd Row Headroom (in)
HD Pro Crew Cab 159"	6.6L V8	RWD	43.03	40.12
HD Pro Crew Cab 172"	6.6L V8	RWD	43.03	40.12
HD Pro Double Cab 162"	6.6L V8	RWD	43.03	39.88
HD Pro Reg Cab 142"	6.6L V8	RWD	43.11
HD Pro Crew Cab 159"	6.6L V8	4WD	43.03	40.12
HD Pro Crew Cab 172"	6.6L V8	4WD	43.03	40.12
HD Pro Double Cab 162"	6.6L V8	4WD	43.03	39.88
HD Pro Reg Cab 142"	6.6L V8	4WD	43.11
HD SLE Crew Cab 159"	6.6L V8	RWD	43.03	40.12
HD SLE Crew Cab 172"	6.6L V8	RWD	43.03	40.12
HD SLE Double Cab 162"	6.6L V8	RWD	43.03	39.88
HD SLE Reg Cab 142"	6.6L V8	RWD	43.11
HD SLE Crew Cab 159"	6.6L V8	4WD	43.03	40.12
HD SLE Crew Cab 172"	6.6L V8	4WD	43.03	40.12
HD SLE Double Cab 162"	6.6L V8	4WD	43.03	39.88
HD SLE Reg Cab 142"	6.6L V8	4WD	43.11
HD SLT Crew Cab 159"	6.6L V8	RWD	43.03	40.12
HD SLT Crew Cab 172"	6.6L V8	RWD	43.03	40.12
HD SLT Crew Cab 159"	6.6L V8	4WD	43.03	40.12
HD SLT Crew Cab 172"	6.6L V8	4WD	43.03	40.12
HD AT4 Crew Cab 159"	6.6L V8	4WD	43.03	40.12
HD AT4 Crew Cab 172"	6.6L V8	4WD	43.03	40.12
HD Denali Crew Cab 159"	6.6L V8	4WD	43.03	40.12
HD Denali Crew Cab 172"	6.6L V8	4WD	43.03	40.12
HD Denali Ultimate Crew Cab 159"	6.6L V8	4WD	43.03	40.12
HD Denali Ultimate Crew Cab 172"	6.6L V8	4WD	43.03	40.12

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
3500 Crew Cab SL	6.0L V8	RWD	104.1	99.1
3500 Crew Cab SL	6.0L V8	4WD	104.1	99.1
3500 Crew Cab SLE	6.0L V8	RWD	104.1	99.1
3500 Crew Cab SLE	6.0L V8	4WD	104.1	99.1
3500 Crew Cab SLT	6.0L V8	RWD	104.1	99.1
3500 Crew Cab SLT	6.0L V8	4WD	104.1	99.1
3500 Extended Cab SL	6.0L V8	RWD	104.1	97.5
3500 Extended Cab SL	6.0L V8	4WD	104.1	97.5
3500 Extended Cab SLE	6.0L V8	RWD	104.1	97.5
3500 Extended Cab SLE	6.0L V8	4WD	104.1	97.5
3500 Extended Cab SLT	6.0L V8	RWD	104.1	97.5
3500 Extended Cab SLT	6.0L V8	4WD	104.1	97.5
3500 Regular Cab SL	6.0L V8	4WD	104.1
3500 Regular Cab SLE	6.0L V8	4WD	104.1

Trim	Eng.	Drive train	1st Row Headroom (cm)	2nd Row Headroom (cm)
HD Pro Crew Cab 159"	6.6L V8	RWD	109	102
HD Pro Crew Cab 172"	6.6L V8	RWD	109	102
HD Pro Double Cab 162"	6.6L V8	RWD	109	101
HD Pro Reg Cab 142"	6.6L V8	RWD	109
HD Pro Crew Cab 159"	6.6L V8	4WD	109	102
HD Pro Crew Cab 172"	6.6L V8	4WD	109	102
HD Pro Double Cab 162"	6.6L V8	4WD	109	101
HD Pro Reg Cab 142"	6.6L V8	4WD	109
HD SLE Crew Cab 159"	6.6L V8	RWD	109	102
HD SLE Crew Cab 172"	6.6L V8	RWD	109	102
HD SLE Double Cab 162"	6.6L V8	RWD	109	101
HD SLE Reg Cab 142"	6.6L V8	RWD	109
HD SLE Crew Cab 159"	6.6L V8	4WD	109	102
HD SLE Crew Cab 172"	6.6L V8	4WD	109	102
HD SLE Double Cab 162"	6.6L V8	4WD	109	101
HD SLE Reg Cab 142"	6.6L V8	4WD	109
HD SLT Crew Cab 159"	6.6L V8	RWD	109	102
HD SLT Crew Cab 172"	6.6L V8	RWD	109	102
HD SLT Crew Cab 159"	6.6L V8	4WD	109	102
HD SLT Crew Cab 172"	6.6L V8	4WD	109	102
HD AT4 Crew Cab 159"	6.6L V8	4WD	109	102
HD AT4 Crew Cab 172"	6.6L V8	4WD	109	102
HD Denali Crew Cab 159"	6.6L V8	4WD	109	102
HD Denali Crew Cab 172"	6.6L V8	4WD	109	102
HD Denali Ultimate Crew Cab 159"	6.6L V8	4WD	109	102
HD Denali Ultimate Crew Cab 172"	6.6L V8	4WD	109	102