GMC Sierra 1500HD ›› 2003 ›› 2003 GMC Sierra 1500HD Specs

2003 GMC Sierra 1500HD

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Specs

Research 2003 GMC Sierra 1500HD specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

SLE 2WD Crew Cab Standard Box SLE

Brakes

Brake ABS System Four-Wheel
Brake ABS System (Second Line)
Disc - Front (Yes or ) Yes
Disc - Rear (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 12.8 x 1.5
Rear Brake Rotor Diam x Thickness (in) 13.0 x 1.4
Drum - Rear (Yes or )
Rear Drum Diam x Width (in)
Brake Type Pwr

Cargo Area Dimensions

Cargo Box Width @ Floor (in) 64.8
Cargo Box Width @ Top, Rear (in) 61.9
Cargo Box Length @ Floor (in) 78.7
Ext'd Cab Cargo Volume (ft³) - TBD -
Cargo Volume (ft³) 56.9
Tailgate Width (in) 61.9
Cargo Box (Area) Height (in) 19.5
Cargo Box Width @ Wheelhousings (in) 50.0

Cooling System

Total Cooling System Capacity (qts) 15.4

Electrical

Maximum Alternator Watts
Maximum Alternator Capacity (amps) 105
Cold Cranking Amps @ 0° F (2nd) 600
Maximum Alternator Capacity (amps) 145
Cold Cranking Amps @ 0° F (2nd)
Cold Cranking Amps @ 0° F (Primary) 600

Engine

Displacement 6.0L/364
Engine Oil Cooler Yes
Engine Order Code LQ4
Fuel System SFI
SAE Net Horsepower @ RPM 300 @ 4400
SAE Net Torque @ RPM 360 @ 4000
Engine Type Gas V8

Exterior Dimensions

Width, Max w/o mirrors (in) 79.7
Ground Clearance, Rear (in) 7.4
Ground Clearance, Front (in) 7.9
Frame Width, Rear (in) - TBD -
Ground to Top of Frame (in) - TBD -
Ground to Top of Load Floor (in) - TBD -
Cab to End of Frame (in) - TBD -
Cab to Axle (in) 41.9
Front Bumper to Back of Cab (in) 148.1
Overhang, Rear w/o bumper (in) 47.2
Overhang, Front (in) 37.0
Height, Overall (in) 77.0
Length, Overall w/o rear bumper (in) 237.2
Wheelbase (in) 153.0

Frame

Frame Type Ladder

Fuel Tank

Aux Fuel Tank Location
Fuel Tank Capacity, Approx (gal) 26
Aux Fuel Tank Capacity, Approx (gal)
Fuel Tank Location LH

Interior Dimensions

Second Head Room (in) 39.9
Second Leg Room (in) 38.8
Second Shoulder Room (in) 65.1
Second Hip Room (in) 62.9
Passenger Capacity 6
Front Head Room (in) 41.1
Front Leg Room (in) 41.3
Front Shoulder Room (in) 65.2
Front Hip Room (in) 61.4
Passenger Capacity 5

Mileage

EPA Fuel Economy Est - City (MPG)
EPA Fuel Economy Est - Hwy (MPG)

Steering

Turning Diameter - Curb to Curb (ft) 39.8
Turning Diameter - Wall to Wall (ft) - TBD -
Steering Ratio (:1), At Lock - TBD -
Steering Type Pwr
Steering Ratio (:1), On Center - TBD -
Turning Diameter - Curb to Curb (ft) 49.6

Summary

Vehicle Name GMC Sierra 1500HD
Body Style Crew Cab 6.5' Fleetside
Body Code E63

Suspension

Axle Type - Front Independent
Axle Capacity - Front (lbs) 4500
Axle Capacity - Rear (lbs) 6000
Axle Ratio (:1) - Front
Axle Ratio (:1) - Rear 4.10
Axle Ratio (:1) - Rear 3.73
Shock Absorber Diameter - Front (mm) 35
Shock Absorber Diameter - Rear (mm) 35
Stabilizer Bar Diameter - Front (in) 1.25
Stabilizer Bar Diameter - Rear (in)
Axle Type - Rear Full-Floating
Suspension Type - Front Coil Spring
Suspension Type - Rear 2-Stage Multi-Leaf
Spring Capacity - Front (lbs) 4500
Spring Capacity - Rear (lbs) 6000

Tires

Spare Tire Order Code QIZ
Front Tire Size LT245/75R16
Rear Tire Size LT245/75R16
Spare Tire Size LT245/75R16
Front Tire Capacity (lbs) 2205
Rear Tire Capacity (lbs) 3042
Spare Tire Capacity (lbs) 2205
Revolutions/Mile @ 45 mph - Front - TBD -
Revolutions/Mile @ 45 mph - Front - TBD -
Revolutions/Mile @ 45 mph - Rear - TBD -
Revolutions/Mile @ 45 mph - Rear - TBD -
Revolutions/Mile @ 45 mph - Spare - TBD -
Revolutions/Mile @ 45 mph - Spare - TBD -
Front Tire Order Code QIW
Front Tire Order Code QIZ
Rear Tire Order Code QIW
Rear Tire Order Code QIZ
Spare Tire Order Code QIW

Trailering

Fifth Wheel Hitch - Max Trailer Wt. (lbs) 7900
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 1230
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 1485
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 1185
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 1530
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 8200
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 9900
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 10200
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1230
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1485
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1185
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1530
Wt Distributing Hitch - Max Trailer Wt. (lbs) 8200
Wt Distributing Hitch - Max Trailer Wt. (lbs) 9900
Wt Distributing Hitch - Max Trailer Wt. (lbs) 7900
Wt Distributing Hitch - Max Trailer Wt. (lbs) 10200
Dead Weight Hitch - Max Tongue Wt. (lbs) 500
Dead Weight Hitch - Max Trailer Wt. (lbs) 5000

Transmission

Fourth Gear Ratio (:1) 0.75
Third Gear Ratio (:1) 1.00
Second Gear Ratio (:1) 1.48
First Gear Ratio (:1) 2.48
Trans Description Cont. Again
Trans Description Cont. HD Automatic w/OD
Trans Type 4
Trans Order Code MT1
Drivetrain Rear Wheel Drive
Seventh Gear Ratio (:1)
Transfer Case Power Take Off
Transfer Case Gear Ratio (:1), Low
Transfer Case Gear Ratio (:1), High
Transfer Case Model
Trans PTO Access
Trans Power Take Off
Clutch Size (in)
Reverse Ratio (:1) 2.08
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1)

Weight Information

Gross Axle Wt Rating - Front (lbs) 4410
Gross Combined Wt Rating (lbs) 16,000
Gross Vehicle Weight Rating Cap (lbs) 8600
Curb Weight - Rear (lbs) 2258
Gross Combined Wt Rating (lbs) 14,000
Curb Weight - Front (lbs) 3097
Gross Axle Wt Rating - Rear (lbs) 6000

Wheels

Rear Wheel Material Aluminum
Spare Wheel Material Steel
Front Wheel Material Chrome
Front Wheel Material Aluminum
Front Wheel Size (in) 16 x 6.5
Spare Wheel Size (in) 16 x 6.5
Rear Wheel Size (in) 16 x 6.5
Rear Wheel Material Chrome