GMC Sierra 3500 ›› 2003 ›› 2003 GMC Sierra 3500 Specs

2003 GMC Sierra 3500

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Specs

Research 2003 GMC Sierra 3500 specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

2WD Extended Cab Long Box DRW

Brakes

Brake Type Pwr
Rear Drum Diam x Width (in)
Brake ABS System Four-Wheel
Brake ABS System (Second Line)
Drum - Rear (Yes or )
Rear Brake Rotor Diam x Thickness (in) 12.8 x 1.2
Front Brake Rotor Diam x Thickness (in) 12.8 x 1.5
Disc - Rear (Yes or ) Yes
Disc - Front (Yes or ) Yes

Cargo Area Dimensions

Cargo Box Length @ Floor (in) 97.6
Tailgate Width (in) 61.9
Cargo Box (Area) Height (in) 19.5
Cargo Box Width @ Wheelhousings (in) 50.0
Cargo Box Width @ Floor (in) 64.8
Ext'd Cab Cargo Volume (ft³) - TBD -
Cargo Box Width @ Top, Rear (in) 61.9
Cargo Volume (ft³) 70.7

Cooling System

Total Cooling System Capacity (qts) 25.2
Total Cooling System Capacity (qts) 15.4
Total Cooling System Capacity (qts) 24.0
Total Cooling System Capacity (qts) 23.6

Electrical

Maximum Alternator Watts
Cold Cranking Amps @ 0° F (2nd)
Cold Cranking Amps @ 0° F (2nd) 770
Maximum Alternator Capacity (amps) 145
Cold Cranking Amps @ 0° F (2nd) 600
Cold Cranking Amps @ 0° F (Primary) 770
Maximum Alternator Capacity (amps) 105
Cold Cranking Amps @ 0° F (Primary) 600

Engine

SAE Net Horsepower @ RPM 300 @ 4400
Engine Oil Cooler Yes
Engine Order Code L18
Engine Order Code LB7
Engine Order Code LQ4
Engine Type Turbo-Charged Diesel V8
Engine Type Gas V8
Displacement 8.1L/494
Displacement 6.6L/402
Displacement 6.0L/364
Fuel System Fuel Injection
Fuel System SFI
SAE Net Horsepower @ RPM 340 @ 4200
SAE Net Horsepower @ RPM 300 @ 3100
SAE Net Torque @ RPM 455 @ 3200
SAE Net Torque @ RPM 520 @ 1800
SAE Net Torque @ RPM 360 @ 4000

Exterior Dimensions

Frame Width, Rear (in) - TBD -
Ground to Top of Frame (in) - TBD -
Ground to Top of Load Floor (in) 35.7
Cab to End of Frame (in) - TBD -
Cab to Axle (in) 55.9
Front Bumper to Back of Cab (in) 138.6
Overhang, Rear w/o bumper (in) 52.1
Overhang, Front (in) 37.0
Height, Overall (in) 76.2
Width, Max w/o mirrors (in) 96.1
Length, Overall w/o rear bumper (in) 246.5
Wheelbase (in) 157.5
Ground Clearance, Front (in) 9.1
Ground Clearance, Rear (in) 12.1

Frame

Frame Type Ladder

Fuel Tank

Fuel Tank Capacity, Approx (gal) 34
Aux Fuel Tank Capacity, Approx (gal)
Fuel Tank Location LH
Aux Fuel Tank Location

Interior Dimensions

Second Head Room (in) 38.4
Passenger Capacity 5
Passenger Capacity 6
Second Hip Room (in) 61.5
Second Shoulder Room (in) 66.3
Second Leg Room (in) 33.7
Front Hip Room (in) 61.4
Front Shoulder Room (in) 65.2
Front Leg Room (in) 41.3
Front Head Room (in) 41.0

Mileage

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

Steering

Turning Diameter - Wall to Wall (ft) - TBD -
Turning Diameter - Curb to Curb (ft) 50.7
Steering Ratio (:1), At Lock - TBD -
Steering Type Pwr Recirculating Ball
Steering Ratio (:1), On Center - TBD -

Summary

Body Style Ext Cab 8' Fleetside
Body Code ZW9
Body Code E63
Vehicle Name GMC Sierra 3500

Suspension

Axle Ratio (:1) - Front
Axle Ratio (:1) - Rear 3.73
Axle Ratio (:1) - Rear 4.10
Shock Absorber Diameter - Front (mm) 35
Shock Absorber Diameter - Rear (mm) 35
Stabilizer Bar Diameter - Front (in) 1.25
Stabilizer Bar Diameter - Rear (in)
Suspension Type - Front Torsion Bar
Suspension Type - Rear 2-Stage Multi-Leaf
Spring Capacity - Front (lbs) 4800
Spring Capacity - Rear (lbs) 8600
Axle Type - Front - TBD -
Axle Type - Rear Full-Floating
Axle Capacity - Front (lbs) 4800
Axle Capacity - Rear (lbs) 9200

Tires

Spare Tire Order Code ZEF
Spare Tire Order Code ZEC
Spare Tire Order Code ZYL
Spare Tire Order Code ZYK
Spare Tire Order Code XEF
Spare Tire Order Code XEC
Front Tire Order Code XYL
Front Tire Order Code XEC
Front Tire Order Code XEF
Front Tire Order Code XYK
Rear Tire Order Code XYL
Rear Tire Order Code XEC
Rear Tire Order Code XEF
Revolutions/Mile @ 45 mph - Rear - TBD -
Rear Tire Order Code XYK
Revolutions/Mile @ 45 mph - Front - TBD -
Spare Tire Capacity (lbs) 2335
Spare Tire Capacity (lbs)
Rear Tire Capacity (lbs) 2150
Front Tire Capacity (lbs) 2335
Spare Tire Size LT215/85R16
Revolutions/Mile @ 45 mph - Spare
Revolutions/Mile @ 45 mph - Spare - TBD -
Spare Tire Order Code XYL
Spare Tire Size
Rear Tire Size LT215/85R16
Front Tire Size LT215/85R16
Spare Tire Order Code XYK
Spare Tire Order Code

Trailering

Fifth Wheel Hitch - Max Tongue Wt. (lbs) 2280
Dead Weight Hitch - Max Trailer Wt. (lbs) 7500
Dead Weight Hitch - Max Tongue Wt. (lbs) 1000
Wt Distributing Hitch - Max Trailer Wt. (lbs) 12,000
Wt Distributing Hitch - Max Trailer Wt. (lbs) 9800
Wt Distributing Hitch - Max Tongue Wt. (lbs) 12,00
Wt Distributing Hitch - Max Tongue Wt. (lbs) 980
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 15400
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 15200
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 9800
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 2310
Fifth Wheel Hitch - Max Tongue Wt. (lbs) 1470

Transmission

Trans Description Cont. Automatic w/OD
Transfer Case Gear Ratio (:1), Low
Transfer Case Gear Ratio (:1), High
Transfer Case Model
Trans PTO Access
Trans PTO Access LH/RH
Trans PTO Access RH
Trans Power Take Off
Trans Power Take Off Yes
First Gear Ratio (:1) 5.79
Trans Description Cont. Again
Trans Description Cont. HD Automatic w/OD
Trans Description Cont. HD Manual w/OD
Trans Description Cont. Manual w/OD
Transfer Case Power Take Off
Trans Type 4
Trans Type 6
Trans Type 5
Trans Order Code MT1
Trans Order Code M74
Trans Order Code ML6
Trans Order Code MW3
Drivetrain Rear Wheel Drive
Seventh Gear Ratio (:1)
Clutch Size (in)
Clutch Size (in) - TBD -
Clutch Size (in) - TBD -
Reverse Ratio (:1) 2.08
Reverse Ratio (:1) 4.49
Reverse Ratio (:1) 5.61
Reverse Ratio (:1) 5.23
Sixth Gear Ratio (:1)
Sixth Gear Ratio (:1) 0.76
Fifth Gear Ratio (:1)
Fifth Gear Ratio (:1) 0.71
Fifth Gear Ratio (:1) 1.00
Fifth Gear Ratio (:1) 0.75
Fourth Gear Ratio (:1) 0.75
Fourth Gear Ratio (:1) 1.00
Fourth Gear Ratio (:1) 1.31
Third Gear Ratio (:1) 1.00
Third Gear Ratio (:1) 1.41
Third Gear Ratio (:1) 1.67
Third Gear Ratio (:1) 2.10
Second Gear Ratio (:1) 1.48
Second Gear Ratio (:1) 1.81
Second Gear Ratio (:1) 3.04
Second Gear Ratio (:1) 3.31
First Gear Ratio (:1) 2.48
First Gear Ratio (:1) 3.10
First Gear Ratio (:1) 5.61

Weight Information

Gross Vehicle Weight Rating Cap (lbs) 11,400
Curb Weight - Rear (lbs) 2658
Curb Weight - Front (lbs) 3087
Gross Axle Wt Rating - Rear (lbs) 8550
Gross Axle Wt Rating - Front (lbs) 4670
Gross Combined Wt Rating (lbs) 16000
Gross Combined Wt Rating (lbs) 22,000

Wheels

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