4X4REVIEW.COM: 2003 GMC Sierra 1500 HD Automatic 4WD


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2003 GMC Sierra 1500 HD Automatic 4WD - Details & Specifications

The Review Detailed Specifications Options/What's New / Pricing

Specifications

Overview

Models:
GMC Sierra 2500 HD,
3500 Regular Cab Wideside Long Box SL and SLE
2500 HD Extended Cab Wideside Short Box SL, SLE, SLT
2500 HD, 3500 Extended Cab Wideside Long Box SL, SLE, SLT
2500HD Crew Cab Wideside Short Box SLE, and SLT
2500HD, 3500 Crew Cab Wideside Long Box, SLE and SLT
3500 Chassis Cabs

Body style / driveline:

2/3-passenger regular cab,
5/6-passenger extended cab,
5/6-passenger crew cab,
3/4-ton and one-ton,
two- and four-wheel-drive heavy duty pickups,
chassis cabs and cab delete models;
pickups available with 6.5- and 8-foot boxes;
3500 Series with standard dual rear wheels

EPA vehicle class: full-size truck

Manufacturing location: Flint, Michigan; Pontiac, Michigan; Fort Wayne, Indiana

Key competitors: Ford F250, F350 Super Duty; Dodge Ram 2500 and 3500

Engine

Vortec 6000
6.0L V8 (LQ4) Vortec 8100
8.1L V8 (L18) Duramax 6600
6.6L V8 (LB7)

Type: 6.0-liter V8 8.1-liter V8 6.6-liter V8

Displacement
(cu in / cc): 364 / 5967 496 / 8128 403 / 6599

Bore & stroke
(in / mm): 4.00 x 3.62 / 101.6 x 92.0 4.25 x 4.37 / 107.95 x 111.0 4.06 x 3.90 / 103.0 x 99.0

Block material: cast iron cast iron cast iron

Cylinder head material: cast aluminum cast iron cast aluminum

Valvetrain: OHV OHV OHV

Ignition system: composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires coil near plug, platinum-tipped spark plugs, low-resistance spark plug wires compression ignition direct injection

Fuel delivery: sequential fuel injection sequential fuel injection high pressure common rail

Compression ratio: 9.4:1 9.1:1 17.5:1

Horsepower
(hp / kw @ rpm): 300 / 224 @ 4400 340 / @ 4200 300 / 224 @ 3000

Torque
(lb-ft / Nm @ rpm): 360 / 488 @ 4000 455 / 617 @ 3200 520 / 705 @ 1800

Recommended fuel: 87 octane 87 octane diesel

Maximum engine speed (rpm): 5600 5000 3250

Emissions controls: three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system turbocharged, intercooled (no exhaust after treatment needed)

Transmissions

Hydra-Matic
4L80-E

MW3 New
Venture Gear

ML6 ZF
S6-650

M74
Allison 1000

Type: 4-speed auto 5-speed manual 6-speed manual 5-speed auto

Gear ratios (:1):

First:

2.48 5.61 5.79 3.10

Second:

1.48 3.04 3.31 1.81

Third:

1.00 1.67 2.10 1.41

Fourth:

0.75 1.00 1.31 1.00

Fifth:

- 0.75 1.00 0.71

Sixth:

- - 0.72 -

Reverse:

2.08 5.04 5.23 4.49

Final drive ratio
(with all transmissions): Vortec 6000: 4.10 standard all models
Vortec 8100: (optional) 3.73 or 4.10 on 2500 HD; 4.10 standard on 3500 Series
Duramax 6600: 3.73 ratio standard all models

Chassis/Suspension

Front (all models): long- and short-arm independent torsion bar

Rear:

2500HD pickups:
semi-elliptic two-stage multileaf spring

3500 chassis cabs: three-stage multileaf spring

Steering type: integral power recirculating ball

Steering ratio: 24:1

Steering wheel turns,
lock-to-lock: 3.14

Turning circle,
curb-to-curb (ft / m): Regular Extended Crew

2500 HD series
single wheel pickups: 2WD: 43.8 / 13.4
4WD: 43.8 / 13.4 2WD: 46.8 / 14.3
4WD: 50.8 / 15.5 2WD: 49.6 / 15.1
4WD: 49.6 / 15.1

3500 series dual
wheel pickups: 2WD: 43.7 / 13.3
4WD: 43.7 / 13.3 2WD: 50.7 / 15.5
4WD: 50.7 / 15.5 2WD: 53.5 / 16.3
4WD: 53.5 / 16.3

3500 series dual
wheel chassis cabs: 2WD: 44.9 / 13.7
4WD: 51.9 / 15.8 2WD: 51.9 / 15.8
4WD: 58.8 / 17.0 -

Brakes

Type: power, HydroBoost brake apply system, four-wheel disc, four-wheel ABS

2500 H.D. Pickups 9200-lb GVW

3500 Series Pickups, Chassis Cabs 11400-lb GVW

3500 Series Chassis Cab 12000-lb GVW

Rotor diameter x thickness (in / mm):

Front:

12.8 x 1.50 /
325 x 38 12.8 x 1.50 /
325 x 38 12.8 x 1.50 /
325 x 38

Rear:

12.8 x 1.20 /
325 x 30 12.8 x 1.20 /
325 x 30 12.8 x 1.20 /
325 x 30

Swept area (sq in / sq cm):

Front:

245.5 / 1583.8 245.5 / 1583.8 245.5 / 1583.8

Rear:

235.1 / 1516.6 235.1 / 1516.6 235.1 / 1516.6

Wheels/Tires

Wheel size & type:

Standard: 16-inch steel 16-inch steel 16-inch steel

Optional: aluminum / chrome Bright Rally trim rings w/bright hubcaps Bright Rally trim rings w/bright hubcaps

Tire size & type: LT245/75R-16E all-season steel belted radials LT215/85R-16 D&E all-season steel-belted radials LT215/85R-16 D&E all-season steel-belted radials

Dimensions

Exterior
2500HD / 3500 Regular Cab Long Box

2500HD Extended Cab Short Box

2500HD / 3500 Extended Cab Long Box

2500HD Crew Cab Short Box

Wheelbase (in / mm): 133.0 / 3378 143.5 / 3645 157.5 / 4001 153.0 / 3886

Overall length (in / mm): 222.1 / 5641 227.7 / 5784 246.6 / 6264 237.3 / 6027

Overall width (in / mm):

With base fleet
mirror folded 2WD: 79.7 / 2024; 4WD: 96.1 / 2441 79.7 / 2024 2WD: 79.7 / 2024
4WD: 96.1 / 2441 79.7 / 2024

With std. YE9
mirrors folded: 2WD: 81.5 / 2070; 4WD: 96.1 / 2441 81.5 / 2070 2WD: 81.5 / 2070
4WD: 96.1 / 2441 81.5 / 2070

With extended YE9 mirrors 2WD: 93.1 / 2363; 4WD: 96.1 / 2441 93.1 / 2363 2WD: 93.1 / 2363
4WD: 96.1 / 2441 93.1 / 2363

Overall height (in / mm):

2WD: 2500
HD: 76.2 / 1935 76.2 / 1935 2500HD: 76.2 / 1935 77.0 / 1956

3500: 76.7 / 1948 3500: 76.3 / 1938

4WD: 2500
HD: 76.5 / 1943 76.5 / 1943 76.5 / 1943
77.4 / 1966

3500: 76.7 / 1948

Min. ground clearance (in / mm):

Front, 2WD: 2500HD: 8.6 / 218.4
3500: 8.8 / 223.5 8.5 / 216 2500HD: 8.5 / 216 8.7 / 221.0

Front, 4WD: 2500HD: 8.9 / 226.1
3500: 8.8 / 223.5 8.8 / 223.5 2500HD: 8.8 / 223.5
3500: 8.7 / 221.0 8.9 / 226.1

Rear, 2WD: 2500HD: 7.5 / 190.5
3500: 7.6 / 193.0 7.4 / 188.0 2500HD: 7.4 / 188.0 7.4 / 188.0

Rear, 4WD: 2500HD: 7.5 / 190.5
3500: 7.6 / 193.0 7.4 / 188.0 2500HD: 7.4 / 188.0
3500: 7.5 / 190.5 7.4 / 188.0

Step-in height (in / mm):

2WD: 24.9 / 632.5
25.5 / 645.2 24.4 / 619.8 24.4 / 619.8
24.9 / 632.5 24.6 / 624.8

4WD: 25.4 / 645.2 24.6 / 624.8 24.6 / 624.8
24.9 / 632.5 25.1 / 637.5

Crew Cab
Long Box

Crew Cab
Chassis Cab

Reg. Cab
Chassis Cab
DRW

Extended Cab
Chassis Cab
DRW

Wheelbase (in / mm): 167.0 / 4242 167.0 / 4242 2WD: 137.0 / 3480
4WD: 161.5 / 4102 4WD: 185.5 / 4712

Overall length (in / mm): 256.2 / 6507 246.7 / 6266 2WD: 225.0 / 5715
4WD: 249.5 / 6637 4WD: 273.5 / 6947

Overall width (in / mm)

Base fleet:

79.7 / 2024 2WD: 79.7 / 2024; 4WD: 94.0 / 2388 94.0 / 2388 4WD: 94.0 / 2388

With std. YE9
mirrors folded

81.5 / 2070 2WD: 81.5 / 2070; 4WD: 94.0 / 2388 94.0 / 2388 4WD: 94.0 / 2388

With extended
YE9 mirrors

93.1 / 2363 2WD: 93.1 / 2070; 4WD: 94.0 / 2388 94.0 / 2388 4WD: 94.0 / 2388

Overall height (in / mm):

2WD:

2500HD: 77.0 / 1956
3500: 77.3 / 1963 2500HD: 77.0 / 1956
3500: 77.3 / 1963 76.0 / 1930 -

4WD:

2500HD: 77.0 / 1956
3500: 77.3 / 1963 2500HD: 77.0 / 1956
3500: 77.3 / 1963 76.0 / 1930 76.0 / 1930

Min. ground clearance (in / mm):

Front, 2WD:

8.7 / 221.0 8.7 / 221.0 8.8 / 223.5 -

Front, 4WD:

8.7 / 221.0 8.7 / 221.0 8.8 / 223.5 8.8 / 223.5

Rear, 2WD:

7.6 / 193.0 7.6 / 193.0 7.6 / 193.0 -

Rear, 4WD:

7.6 / 193.0 7.6 / 193.0 7.4 / 188.0 7.4 / 188.0

Step-in height (in / mm):

2WD:

2500HD: 24.6 / 624.8
3500: 24.7 / 627.4 2500HD: 24.6 / 624.8
3500: 24.7 / 627.4 25 / 635 -

4WD:

2500HD: 25.1 / 637.5
3500: 24.8 / 629.9 2500HD: 25.1 / 637.5
3500: 24.8 / 629.9 25 / 635 25 / 635

2500 HD 3500 Series

Track (in / mm):

Front:

68.6 / 1742 68.6 / 1742

Rear:

66.0 / 1676 74.7 / 1897

GVW (lbs / kg)

Base Curb Weight
(lbs / kg)

Payload (lbs / kg)

Weight Distribution (% front / rear)

2WD pickups / chassis cabs:

C25903 reg. cab
long box 8600 / 3900.2 5059 / 2294.3 3541 / 1605.9 57 / 43

C25903HD reg.
cab long box: 9200 / 4173 5153 / 2337.0 4047 / 1835.4 55 / 45

C25753HD ext
cab short box: 9200 / 4173 5402 / 2449.9 3798 / 1722.4 56 / 44

C25953HD ext
cab long box: 9200 / 4173 5556 / 2519.7 3644 / 1652.6 56 / 44

C25743HD crew
cab short box: 9200 / 4173 5615 / 2546.5 3585 / 1625.9 55 / 45

C25943HD crew
cab long box: 9200 / 4173 5779 / 2620.9 3421 / 1551.5 55 / 45

C35943 crew
cab long box: 11400 / 5171 6168 / 2797.3 5232 / 2372.8 52 / 48

C35953 ext.
cab long box: 11400 / 5171 5951 / 2698.9 5449 / 2471.2 53 / 47

C35003 reg.
cab chassis cab: 11400 / 5171 5530 / 2507.9 5870 / 2662.1 53 / 47

C35053 ext. cab
chassis cab:
11400 / 5171 5971 / 2707.9 5429 / 2462.1 54 / 46

C35403 reg.
cab chassis cab: 11400 / 5171 5612 / 2545.1 5788 / 2624.9 55 / 45

C35453 ext. cab
chassis cab: 11400 / 5171 6057 / 2746.9 5343 / 2423.1 55 / 45

4WD pickups / chassis cabs:

K25753 ext,
cab short box 8600 / 3900.2 5524 / 2505.2 3076 / 1395.0 59 / 41

K25903HD reg.
cab long box: 9200 / 4173 5440 / 2467.1 3760 / 1705.2 57 / 43

K25753HD ext
cab short box: 9200 / 4173 5631 / 2553.7 3569 / 1618.6 58 / 42

K25743HD crew
cab short box: 9200 / 4173 5892 / 2672.1 3308 / 1500.2 57 / 43

K25943HD crew
cab long box: 9200 / 4173 6056 / 2746.5 3144 / 1425.9 57 / 43

K25953HD ext
cab long box: 9200 / 4173 5828 / 2643.1 3372 / 1529.3 58 / 42

K35903 reg.
cab long box: 11400 / 5171 5841 / 2649.0 5559 / 2521.1 54 / 46

K35943 crew
cab long box: 11400 / 5171 6459 / 2929.3 4941 / 2240.8 54 / 46

K35953 ext cab
long box: 11400 / 5171 6231 / 2825.9 5169 / 2344.2 54 / 46

K35003 reg.
cab chassis cab: 12000 / 5443 5800 / 2630.4 6200 / 2811.8 55 / 45

K35053 ext.
cab chassis cab: 12000 / 5443 6262 / 2839.9 5738 / 2602.3 55 / 45

K35403 reg.
cab chassis cab: 12000 / 5443 5906 / 2678.5 6094 / 2763.7 57 / 43

K35453 ext.
cab chassis cab: 12000 / 5443 6341 / 2875.7 5659 / 2566.4 56 / 44

Cargo Box
Short Box (6.5-foot)

Long Box (8-foot)

Cargo volume
(cu ft / liters):
56.9 / 1611

70.7 / 2002

Length at floor
(in / mm):
78.7 / 1999

97.6 / 2479

Opening width at
floor (in / mm):
64.8 / 1646

64.8 / 1646

Opening width rear
at top (in / mm):
61.9 / 1572

61.9 / 1572

Cargo width at wheelhouse (in / mm):
50.0 / 1270

50.0 / 1270

Length at top
(in / mm):
77.8 / 1976

96.7 / 2456

Inside box height
(in / mm):
19.5 / 495.3

19.5 / 495.3

Interior Regular Cab Extended Cab Crew Cab

Head room (in / mm):

Front:

41.0 / 1041.4 41.0 / 1041.4 41.0 / 1041.4

Rear:

- 38.4 / 975.4 39.0 / 990.6

Leg room (in / mm):

Front:

41.3 / 1049.0 41.3 / 1049.0 41.3 / 1049.0

Rear:

- 33.7 / 856.0 39.1 / 993.1

Shoulder room (in / mm):

Front:

65.2 / 1656.1 65.2 / 1656.1 62.5 / 1656.1

Rear:

- 66.3 / 1684.0 65.1 / 1653.5

Hip room (in / mm):

Front:

61.4 / 1559.6 61.4 / 1559.6 61.4 / 1559.6

Rear:

- 61.5 / 1562.1 62.9 / 1597.7

Seating:

3 6 6

Capacities

Fuel tank (gal / liters):

Short Box: 26 / 98.4

Long Box: 34 / 128.7

DRW chassis cab: 50 / 189.3

Trailer tow maximum (lb / kg):

2500 H.D. alt fuel with 6.0L V8, auto trans: 8200 / 3718.8 with weight distributing hitch and sway bar. Alt fuel vehicles are neither designed nor intended to tow 5th wheel or gooseneck trailers.

2500 H.D. with 6.0L V8, manual or auto trans: 10,600 / 4807.3 with weight distributing hitch and sway control or with 5th wheel or gooseneck trailer

2500 H.D. with Vortec 8100 8.1L V8 or Duramax 6600 6.6L Turbo Diesel, manual or auto trans: 12,000 / 5442 with weight distributing hitch and sway control. Increases to 16,100 lbs for 8.1L and 16,000 lbs. for Duramax 6600 with 5th wheel or gooseneck trailer

3500 with Vortec 6000 6.0L V8, manual or auto trans: 9,900 / 4489.8 with weight distributing hitch and sway control or 5th wheel or gooseneck trailers.

3500 with Vortec 8100 8.1L V8 or Duramax 6600 6.6L Turbo Diesel, manual or auto trans:

12,000 / 5442.2 with weight distributing hitch and sway control. Increases to 15,500 lbs for Vortec 8100 and 15,400 lbs for Duramax 6600 with 5th wheel or gooseneck trailers.

*For alternative fuel vehicles, trailer tongue weight should be 10 to 15 percent of total loaded trailer weight. On other models, trailer tongue weight should be 10 to 15 percent of total loaded trailer weight up to 1500 lbs. On all models, the base cooling system includes all content required to attain maximum trailering rating, and the Z82 Heavy Duty trailering package includes the trailer hitch platform and trailer electrical connector.

Vortec 6000 Vortec 8100 Duramax 6600

Engine oil with filter
(qts / liters): 6.0 / 5.7 6.0 / 5.7 9.3 / 9.8

Total cooling system (qts / liters):

Manual trans:

15.2 / 14.4 23.6 / 22.3 21.8 / 20.7

Automatic trans:

14.4 / 13.6 23.1 / 21.9 21.4 / 20.3

The Review Detailed Specifications Options/What's New / Pricing