Specs

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

AWD Extended Cab Short Box

Brakes

Disc - Front (Yes or ) Yes
Drum - Rear (Yes or )
Rear Drum Diam x Width (in)
Rear Brake Rotor Diam x Thickness (in) 12.8 x 0.78
Front Brake Rotor Diam x Thickness (in) 12.1 x 1.10
Disc - Rear (Yes or ) Yes
Brake Type Pwr
Brake ABS System Four-Wheel
Brake ABS System (Second Line)

Cargo Area Dimensions

Cargo Volume (ft³) 56.9
Cargo Box Width @ Top, Rear (in) 63.8
Cargo Box Length @ Floor (in) 78.7
Ext'd Cab Cargo Volume (ft³) - TBD -
Tailgate Width (in) 63.8
Cargo Box (Area) Height (in) 19.5
Cargo Box Width @ Wheelhousings (in) 50.0
Cargo Box Width @ Floor (in) 64.8

Cooling System

Total Cooling System Capacity (qts) 15.4

Electrical

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

Engine

SAE Net Horsepower @ RPM 325 @ 5000
Engine Oil Cooler
Fuel System SFI
SAE Net Torque @ RPM 370 @ 4000
Engine Order Code LQ4
Engine Type Gas V8
Displacement 6.0L/364

Exterior Dimensions

Ground Clearance, Rear (in) 8.3
Frame Width, Rear (in) - TBD -
Ground to Top of Frame (in) - TBD -
Ground to Top of Load Floor (in) 32.9
Cab to End of Frame (in) - TBD -
Cab to Axle (in) 41.9
Front Bumper to Back of Cab (in) 138.5
Overhang, Rear w/o bumper (in) 47.3
Overhang, Front (in) 36.9
Height, Overall (in) 73.9
Width, Max w/o mirrors (in) 83.5
Length, Overall w/o rear bumper (in) 227.7
Wheelbase (in) 143.5
Ground Clearance, Front (in) 8.0

Frame

Frame Type Ladder

Fuel Tank

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

Interior Dimensions

Front Shoulder Room (in) 65.2
Front Hip Room (in) 61.4
Second Head Room (in) 38.4
Second Shoulder Room (in) 66.3
Passenger Capacity 5
Second Hip Room (in) 61.5
Second Leg Room (in) 33.7
Front Head Room (in) 41.0
Front Leg Room (in) 41.3

Mileage

EPA Fuel Economy Est - City (MPG) 12
EPA Fuel Economy Est - Hwy (MPG) 16

Steering

Steering Ratio (:1), On Center 14.2
Turning Diameter - Wall to Wall (ft) - TBD -
Steering Ratio (:1), At Lock - TBD -
Steering Type Pwr
Turning Diameter - Curb to Curb (ft) 37.4

Summary

Body Style Ext Cab 6.5' Wideside
Body Code E63
Vehicle Name GMC Sierra Denali
Vehicle Name GMC Sierra Denali

Suspension

Spring Capacity - Rear (lbs) 4000
Axle Type - Front Independent
Axle Capacity - Front (lbs) 3925
Axle Type - Rear Semi-Floating
Axle Capacity - Rear (lbs) 4000
Axle Ratio (:1) - Front 4.10
Axle Ratio (:1) - Rear 4.10
Shock Absorber Diameter - Front (mm) 32
Shock Absorber Diameter - Rear (mm) 32
Stabilizer Bar Diameter - Front (in) 1.13
Stabilizer Bar Diameter - Rear (in) - TBD -
Suspension Type - Front Torsion Bar
Suspension Type - Rear 4-Stage Multi-Leaf
Spring Capacity - Front (lbs) 3925

Tires

Rear Tire Order Code QAN
Front Tire Order Code QAN
Spare Tire Order Code
Front Tire Size P265/70R17
Rear Tire Size P265/70R17
Spare Tire Size P265/75R16
Front Tire Capacity (lbs) 2134
Rear Tire Capacity (lbs) 2134
Spare Tire Capacity (lbs) 2134
Revolutions/Mile @ 45 mph - Front - TBD -
Revolutions/Mile @ 45 mph - Rear - TBD -
Revolutions/Mile @ 45 mph - Spare - TBD -

Trailering

Wt Distributing Hitch - Max Tongue Wt. (lbs) 1000
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 9200
Dead Weight Hitch - Max Trailer Wt. (lbs) 5000
Dead Weight Hitch - Max Tongue Wt. (lbs) 600
Wt Distributing Hitch - Max Trailer Wt. (lbs) 10000
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 1380

Transmission

Trans Power Take Off
Clutch Size (in)
Reverse Ratio (:1) 2.29
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1)
Fourth Gear Ratio (:1) 0.70
Third Gear Ratio (:1) 1.00
Second Gear Ratio (:1) 1.63
First Gear Ratio (:1) 3.06
Trans Description Cont. Again
Trans Description Cont. Automatic w/OD
Trans Type 4
Trans Order Code M32
Seventh Gear Ratio (:1)
Transfer Case Power Take Off
Transfer Case Gear Ratio (:1), Low - TBD -
Transfer Case Gear Ratio (:1), High - TBD -
Transfer Case Model New Venture Gear NVG 149 AWD
Trans PTO Access
Drivetrain All Wheel Drive

Weight Information

Curb Weight - Rear (lbs) 1884
Curb Weight - Front (lbs) 2913
Gross Axle Wt Rating - Rear (lbs) 4000
Gross Axle Wt Rating - Front (lbs) 3925
Gross Combined Wt Rating (lbs) 14,000
Gross Vehicle Weight Rating Cap (lbs) 7200

Wheels

Front Wheel Size (in) 17 x 7
Spare Wheel Size (in) 16 x 6.5
Front Wheel Material Aluminum
Rear Wheel Material Aluminum
Spare Wheel Material Steel
Rear Wheel Size (in) 17 x 7

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