Specs

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

2WD Regular Cab Wideside Short Box

Brakes

Rear Drum Diam x Width (in) 9.5 x 2.0
Drum - Rear (Yes or ) Yes
Brake Type Power
Brake ABS System 4-Wheel
Disc - Front (Yes or ) Yes
Disc - Rear (Yes or )
Front Brake Rotor Diam x Thickness (in) 10.5 x 1.03
Rear Brake Rotor Diam x Thickness (in)
Brake ABS System (Second Line)

Cargo Area Dimensions

Cargo Box Width @ Wheelhousings (in) 40.3
Tailgate Width (in) 54.9
Cargo Volume (ft³) 39.4
Ext'd Cab Cargo Volume (ft³)
Cargo Box (Area) Height (in) 17.1
Cargo Box Width @ Floor (in) 54.9
Cargo Box Width @ Top, Rear (in) 54.9
Cargo Box Length @ Floor (in) 72.8

Cooling System

Total Cooling System Capacity (qts) 12.1
Total Cooling System Capacity (qts) 11.5

Electrical

Cold Cranking Amps @ 0° F (Primary) 690
Maximum Alternator Watts 1200
Maximum Alternator Capacity (amps) 100
Cold Cranking Amps @ 0° F (2nd)
Cold Cranking Amps @ 0° F (Primary) 525

Engine

Displacement 4.3L/262
Displacement 2.2L/133
Fuel System SFI
SAE Net Horsepower @ RPM 175 @ 4400
SAE Net Horsepower @ RPM 180 @ 4400
SAE Net Torque @ RPM 140 @ 3600
SAE Net Torque @ RPM 245 @ 2800
SAE Net Torque @ RPM 240 @ 2800
Engine Oil Cooler Yes
Engine Oil Cooler
SAE Net Horsepower @ RPM 120 @ 5000
Engine Order Code LF6
Engine Order Code L35
Engine Order Code LN2
Engine Type Gas V6
Engine Type Gas L4

Exterior Dimensions

Ground Clearance, Front (in) - TBD -
Ground to Top of Frame (in)
Ground Clearance, Front (in) 9.1
Ground Clearance, Rear (in) - TBD -
Ground Clearance, Rear (in) 7.2
Ground to Top of Load Floor (in) 29.0
Ground to Top of Load Floor (in) - TBD -
Cab to End of Frame (in)
Cab to Axle (in) 37.4
Front Bumper to Back of Cab (in) 106.0
Overhang, Rear w/o bumper (in) 46.0
Overhang, Front (in) 34.8
Height, Overall (in) 63.2
Width, Max w/o mirrors (in) 67.9
Width, Max w/o mirrors (in) 71.9
Length, Overall w/o rear bumper (in) 190.6
Wheelbase (in) 108.3
Frame Width, Rear (in) - TBD -

Frame

Frame Type Ladder

Fuel Tank

Fuel Tank Capacity, Approx (gal) 19
Aux Fuel Tank Location
Fuel Tank Location Inboard LH Frame
Aux Fuel Tank Capacity, Approx (gal)

Interior Dimensions

Front Shoulder Room (in) 56.8
Front Head Room (in) 39.5
Front Hip Room (in) 53.6
Front Leg Room (in) 42.4
Passenger Capacity 3
Passenger Capacity 2

Mileage

EPA Fuel Economy Est - Hwy (MPG) 26
EPA Fuel Economy Est - City (MPG) 17
EPA Fuel Economy Est - City (MPG) 19
EPA Fuel Economy Est - Hwy (MPG) 22
EPA Fuel Economy Est - Hwy (MPG) 23
EPA Fuel Economy Est - Hwy (MPG) 28
EPA Fuel Economy Est - City (MPG) 22

Steering

Turning Diameter - Curb to Curb (ft) 36.9
Steering Ratio (:1), On Center 15
Steering Type Power
Turning Diameter - Wall to Wall (ft) 38.9
Steering Ratio (:1), At Lock 13

Summary

Vehicle Name GMC Sonoma
Body Code E63
Body Style Reg Cab 6' Wideside

Suspension

Axle Ratio (:1) - Rear 4.10
Suspension Type - Front Indep Coil Spring
Suspension Type - Rear 2-Stage Multi-Leaf
Spring Capacity - Front (lbs) 2500
Spring Capacity - Rear (lbs) 2700
Spring Capacity - Rear (lbs) 2300
Axle Type - Front
Axle Type - Rear Semi-Floating
Axle Capacity - Front (lbs) 2500
Axle Capacity - Rear (lbs) 2900
Axle Ratio (:1) - Front
Axle Ratio (:1) - Rear 3.42
Axle Ratio (:1) - Rear 3.08
Axle Ratio (:1) - Rear 3.73
Shock Absorber Diameter - Front (mm) 46 Gas
Shock Absorber Diameter - Front (mm) 32
Shock Absorber Diameter - Rear (mm) 46 Gas
Shock Absorber Diameter - Rear (mm) 32
Stabilizer Bar Diameter - Front (in) 1.10
Stabilizer Bar Diameter - Front (in) 0.98
Stabilizer Bar Diameter - Rear (in)

Tires

Revolutions/Mile @ 45 mph - Front 768
Rear Tire Capacity (lbs) 1452
Spare Tire Capacity (lbs) 1452
Spare Tire Capacity (lbs) 1643
Spare Tire Capacity (lbs) 1763
Spare Tire Capacity (lbs) 1595
Spare Tire Capacity (lbs) 1453
Revolutions/Mile @ 45 mph - Front - TBD -
Revolutions/Mile @ 45 mph - Front 743
Revolutions/Mile @ 45 mph - Front 719
Revolutions/Mile @ 45 mph - Front 686
Front Tire Order Code QCA
Front Tire Order Code QCB
Front Tire Order Code QBF
Front Tire Order Code QEB
Front Tire Order Code QJJ
Front Tire Order Code QCE
Rear Tire Order Code QCA
Rear Tire Order Code QCB
Rear Tire Order Code QBF
Rear Tire Order Code QEB
Rear Tire Order Code QJJ
Rear Tire Order Code QCE
Spare Tire Order Code ZCE
Spare Tire Order Code ZCA
Spare Tire Order Code ZBF
Spare Tire Order Code ZEB
Spare Tire Order Code ZJJ
Spare Tire Order Code
Front Tire Size P235/55R16
Front Tire Size P235/70R15
Front Tire Size P235/75R15
Front Tire Size 31x10.5R15
Front Tire Size P205/75R15
Rear Tire Size P235/55R16
Rear Tire Size P235/70R15
Rear Tire Size P235/75R15
Rear Tire Size 31x10.5R15
Rear Tire Size P205/75R15
Spare Tire Size P205/75R15
Spare Tire Size P235/70R15
Spare Tire Size P235/75R15
Spare Tire Size 31x10.5R15
Revolutions/Mile @ 45 mph - Spare 686
Revolutions/Mile @ 45 mph - Spare - TBD -
Revolutions/Mile @ 45 mph - Spare 719
Revolutions/Mile @ 45 mph - Spare 743
Revolutions/Mile @ 45 mph - Spare 768
Revolutions/Mile @ 45 mph - Rear 768
Revolutions/Mile @ 45 mph - Rear 686
Revolutions/Mile @ 45 mph - Rear 719
Revolutions/Mile @ 45 mph - Rear 743
Revolutions/Mile @ 45 mph - Rear - TBD -
Spare Tire Size T155/90D16
Front Tire Capacity (lbs) 1422
Front Tire Capacity (lbs) 1643
Front Tire Capacity (lbs) 1763
Front Tire Capacity (lbs) 1595
Front Tire Capacity (lbs) 1452
Rear Tire Capacity (lbs) 1422
Rear Tire Capacity (lbs) 1643
Rear Tire Capacity (lbs) 1763
Rear Tire Capacity (lbs) 1595

Trailering

Wt Distributing Hitch - Max Trailer Wt. (lbs) 6000
Dead Weight Hitch - Max Trailer Wt. (lbs) 3500
Dead Weight Hitch - Max Trailer Wt. (lbs) 2000
Dead Weight Hitch - Max Tongue Wt. (lbs) 350
Wt Distributing Hitch - Max Trailer Wt. (lbs) 2000
Wt Distributing Hitch - Max Tongue Wt. (lbs) 750
Fifth Wheel Hitch - Max Trailer Wt. (lbs)
Fifth Wheel Hitch - Max Trailer Wt. (lbs) 2000
Fifth Wheel Hitch - Max Tongue Wt. (lbs)

Transmission

Transfer Case Power Take Off
Transfer Case Gear Ratio (:1), Low
Fifth Gear Ratio (:1)
Fifth Gear Ratio (:1) 0.78
Fourth Gear Ratio (:1) 1.00
Fourth Gear Ratio (:1) 0.70
Third Gear Ratio (:1) 1.49
Third Gear Ratio (:1) 1.00
Third Gear Ratio (:1) 1.40
Second Gear Ratio (:1) 2.37
Second Gear Ratio (:1) 1.63
Second Gear Ratio (:1) 2.16
First Gear Ratio (:1) 3.94
First Gear Ratio (:1) 3.06
First Gear Ratio (:1) 3.49
Trans Description Cont. Again
Trans Description Cont. Again Electronic
Trans Description Cont. Manual w/OD
Trans Description Cont. Automatic w/OD,
Trans Type 5
Trans Type 4
Trans Order Code MW2
Trans Order Code M30
Trans Order Code M50
Drivetrain Rear Wheel Drive
Seventh Gear Ratio (:1)
Transfer Case Gear Ratio (:1), High
Transfer Case Model
Trans PTO Access
Trans Power Take Off
Clutch Size (in) 9.13
Clutch Size (in)
Clutch Size (in) 11
Reverse Ratio (:1) 3.65
Reverse Ratio (:1) 2.29
Reverse Ratio (:1) 3.55
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1) 0.83

Weight Information

Gross Combined Wt Rating (lbs) 8500
Gross Vehicle Weight Rating Cap (lbs) 4200
Gross Vehicle Weight Rating Cap (lbs) 4600
Curb Weight - Rear (lbs) 1253
Curb Weight - Front (lbs) 1735
Gross Axle Wt Rating - Rear (lbs) 2300
Gross Axle Wt Rating - Rear (lbs) 2700
Gross Axle Wt Rating - Front (lbs) 2500
Gross Combined Wt Rating (lbs) 5000
Gross Combined Wt Rating (lbs) 5500
Gross Combined Wt Rating (lbs) 6500
Gross Combined Wt Rating (lbs) 7500
Gross Combined Wt Rating (lbs) 9500

Wheels

Front Wheel Size (in) 15 x 7
Rear Wheel Size (in) 16 x 8
Rear Wheel Size (in) 15 x 7
Spare Wheel Size (in) 15 x 7
Spare Wheel Size (in) 16 x 4
Front Wheel Material Aluminum
Front Wheel Material Steel
Rear Wheel Material Aluminum
Rear Wheel Material Steel
Spare Wheel Material Steel
Front Wheel Size (in) 16 x 8