GMC Sierra 3500 ›› 1998 ›› 1998 GMC Sierra 3500 Specs

1998 GMC Sierra 3500

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Specs

Research 1998 GMC Sierra 3500 specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

Reg Cab 131.5" WB, 55.9" CA

Brakes

Rear Drum Diam x Width (in) 13.0 x 2.5
Disc - Front (Yes or ) Yes
Rear Brake Rotor Diam x Thickness (in)
Drum - Rear (Yes or ) Yes
Rear Drum Diam x Width (in) 13.0 x 3.5
Brake Type Power
Brake ABS System Four Wheel
Brake ABS System (Second Line)
Disc - Rear (Yes or )
Front Brake Rotor Diam x Thickness (in) 12.50 x 1.5
Front Brake Rotor Diam x Thickness (in) 12.50 x 1.26

Cooling System

Total Cooling System Capacity (qts) 23.8
Total Cooling System Capacity (qts) 17.1

Electrical

Cold Cranking Amps @ 0° F (2nd) 600
Cold Cranking Amps @ 0° F (2nd)
Maximum Alternator Watts 1200
Maximum Alternator Capacity (amps) 100
Cold Cranking Amps @ 0° F (Primary) 600

Engine

Fuel System SFI
Fuel System Turbo-Charged EFI
SAE Net Horsepower @ RPM 290 @ 4000
SAE Net Horsepower @ RPM 195 @ 3400
SAE Net Horsepower @ RPM 255 @ 4600
SAE Net Torque @ RPM 410 @ 3200
SAE Net Torque @ RPM 430 @ 1800
SAE Net Torque @ RPM 420 @ 1800
SAE Net Torque @ RPM 330 @ 2800
Engine Oil Cooler Yes
Engine Order Code L29
Engine Order Code L65
Engine Order Code L31
Engine Type Gas V8
Engine Type Diesel V8
Engine Type Gas V8
Displacement 7.4L/454
Displacement 6.5L/395
Displacement 5.7L/350

Exterior Dimensions

Wheelbase (in) 131.5
Ground Clearance, Rear (in) 6.4
Ground Clearance, Front (in) 8.4
Frame Width, Rear (in) 36.7
Ground to Top of Frame (in) 32.1
Ground to Top of Load Floor (in)
Cab to End of Frame (in) 97.6
Cab to Axle (in) 55.9
Front Bumper to Back of Cab (in) 111.0
Overhang, Rear w/o bumper (in) 41.7
Overhang, Front (in) 35.4
Height, Overall (in) 73.4
Height, Overall (in) 73.2
Width, Max w/o mirrors (in) 76.8
Width, Max w/o mirrors (in) 92.2
Length, Overall w/o rear bumper (in) 208.6

Frame

Frame Type Ladder

Fuel Tank

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

Interior Dimensions

Front Hip Room (in) 60.1
Passenger Capacity 3
Passenger Capacity 2
Front Leg Room (in) 41.5
Front Shoulder Room (in) 65.0
Front Head Room (in) 40.0

Mileage

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

Steering

Turning Diameter - Curb to Curb (ft) 43.4
Steering Ratio (:1), On Center 16.4
Steering Type Power
Turning Diameter - Wall to Wall (ft) 47.9
Steering Ratio (:1), At Lock 15.3

Summary

Body Code ZW9
Vehicle Name GMC Sierra 3500
Body Style Reg Cab 131.5" Wheelbase

Suspension

Axle Capacity - Front (lbs) 4100
Stabilizer Bar Diameter - Rear (in)
Stabilizer Bar Diameter - Rear (in) - TBD -
Stabilizer Bar Diameter - Front (in) 1.25
Shock Absorber Diameter - Rear (mm) 35
Shock Absorber Diameter - Front (mm) 35
Axle Ratio (:1) - Rear 4.10
Axle Ratio (:1) - Rear 3.73
Axle Ratio (:1) - Rear 4.56
Axle Ratio (:1) - Front
Axle Capacity - Rear (lbs) 6084
Axle Capacity - Rear (lbs) 7500
Suspension Type - Front Indep Coil Spring
Suspension Type - Rear 2-Stage Multi-Leaf
Spring Capacity - Front (lbs) 4100
Spring Capacity - Front (lbs) 3600
Spring Capacity - Rear (lbs) 7500
Spring Capacity - Rear (lbs) 6084
Axle Type - Front
Axle Type - Rear Full-Floating

Tires

Revolutions/Mile @ 45 mph - Spare
Front Tire Order Code XGK
Front Tire Order Code XHP
Front Tire Order Code XHR
Front Tire Order Code XYK
Front Tire Order Code XYL
Front Tire Order Code XHH
Rear Tire Order Code YGK
Rear Tire Order Code YHP
Rear Tire Order Code YHR
Rear Tire Order Code YYK
Rear Tire Order Code YYL
Rear Tire Order Code YHH
Spare Tire Order Code ZHH
Spare Tire Order Code ZGK
Spare Tire Order Code ZHP
Spare Tire Order Code ZHR
Spare Tire Order Code ZYK
Spare Tire Order Code ZYL
Spare Tire Order Code
Front Tire Size LT225/75R16D
Front Tire Size LT215/85R16D
Front Tire Size LT245/75R16E
Rear Tire Size LT225/75R16D
Rear Tire Size LT215/85R16D
Rear Tire Size LT245/75R16E
Spare Tire Size LT245/75R16E
Spare Tire Size LT225/75R16D
Spare Tire Size LT215/85R16D
Spare Tire Size
Front Tire Capacity (lbs) 2060
Front Tire Capacity (lbs) 2335
Front Tire Capacity (lbs) 2205
Rear Tire Capacity (lbs) 1875
Rear Tire Capacity (lbs) 1985
Rear Tire Capacity (lbs) 3042
Spare Tire Capacity (lbs) 3042
Spare Tire Capacity (lbs) 2060
Spare Tire Capacity (lbs) 2150
Spare Tire Capacity (lbs) 2335
Spare Tire Capacity (lbs)
Revolutions/Mile @ 45 mph - Front 706
Revolutions/Mile @ 45 mph - Front 682
Revolutions/Mile @ 45 mph - Front 679
Revolutions/Mile @ 45 mph - Front 678
Revolutions/Mile @ 45 mph - Rear 706
Revolutions/Mile @ 45 mph - Rear 682
Revolutions/Mile @ 45 mph - Rear 679
Revolutions/Mile @ 45 mph - Rear 678
Revolutions/Mile @ 45 mph - Spare 678
Revolutions/Mile @ 45 mph - Spare 706
Revolutions/Mile @ 45 mph - Spare 682
Revolutions/Mile @ 45 mph - Spare 679

Trailering

Dead Weight Hitch - Max Trailer Wt. (lbs) 5000
Dead Weight Hitch - Max Tongue Wt. (lbs) 500
Wt Distributing Hitch - Max Trailer Wt. (lbs) 10,000
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1000
Fifth Wheel Hitch - Max Trailer Wt. (lbs)
Fifth Wheel Hitch - Max Tongue Wt. (lbs)

Transmission

Trans Description Cont. Again Electronic
Trans Description Cont. HD Manual w/OD,
Drivetrain Rear Wheel Drive
Seventh Gear Ratio (:1)
Reverse Ratio (:1) 5.04
Transfer Case Power Take Off
Transfer Case Gear Ratio (:1), Low
Transfer Case Gear Ratio (:1), High
Transfer Case Model
Trans PTO Access LH/RH
Trans PTO Access
Trans Power Take Off SAE 6-Bolt
Trans Power Take Off
Clutch Size (in) 12
Clutch Size (in)
Trans Order Code MT1
Trans Order Code MW3
Trans Type 4
Trans Type 5
Trans Description Cont. HD Automatic w/OD,
Reverse Ratio (:1) 2.08
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1) 0.75
Fifth Gear Ratio (:1)
Fourth Gear Ratio (:1) 1.00
Fourth Gear Ratio (:1) 0.75
Third Gear Ratio (:1) 1.00
Third Gear Ratio (:1) 1.67
Second Gear Ratio (:1) 3.04
Second Gear Ratio (:1) 1.48
First Gear Ratio (:1) 5.61
First Gear Ratio (:1) 2.48
Trans Description Cont. Again Deep Low

Weight Information

Gross Axle Wt Rating - Front (lbs) 4100
Gross Vehicle Weight Rating Cap (lbs) 10,000
Curb Weight - Rear (lbs) 2179
Curb Weight - Front (lbs) 2691
Gross Axle Wt Rating - Rear (lbs) 6084
Gross Axle Wt Rating - Rear (lbs) 7500
Gross Axle Wt Rating - Front (lbs) 3600
Gross Vehicle Weight Rating Cap (lbs) 9,000
Gross Combined Wt Rating (lbs) 13,500
Gross Combined Wt Rating (lbs) 14,500
Gross Combined Wt Rating (lbs) 17,000
Gross Combined Wt Rating (lbs) 19,000
Gross Combined Wt Rating (lbs) 15,000

Wheels

Spare Wheel Size (in) 16 x 6.0
Spare Wheel Size (in) 16 x 6.5
Rear Wheel Size (in) 16 x 6.5
Rear Wheel Size (in) 16 x 6.0
Front Wheel Size (in) 16 x 6.5
Front Wheel Size (in) 16 x 6.0
Spare Wheel Material
Spare Wheel Material Steel
Rear Wheel Material Steel
Front Wheel Material Steel
Spare Wheel Size (in)