Specs

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

1500 4dr

Brakes

Disc - Rear (Yes or )
Disc - Front (Yes or ) Yes
Brake ABS System (Second Line)
Front Brake Rotor Diam x Thickness (in) 11.57 x 1.25
Brake ABS System 4-Wheel
Brake Type Power
Rear Brake Rotor Diam x Thickness (in)
Drum - Rear (Yes or ) Yes
Rear Drum Diam x Width (in) 10.0 x 2.25

Cargo Area Dimensions

Cargo Box Width @ Wheelhousings (in) 48.4
Cargo Area Width @ Beltline (in) 61.4
Cargo Area Length @ Floor to Seat 4 (in)
Cargo Area Length @ Floor to Seat 3 (in)
Cargo Volume to Seat 4 (ft³)
Cargo Volume to Seat 3 (ft³)
Cargo Volume to Seat 2 (ft³) 66.9
Cargo Area Length @ Floor to Seat 2 (in) 52.2
Cargo Area Length @ Floor to Seat 1 (in) 77.8
Cargo Area Length @ Floor to Console (in)
Cargo Volume to Seat 1 (ft³) 118.2
Cargo Box (Area) Height (in) 40.8

Cooling System

Total Cooling System Capacity (qts) 17.0

Doors

Side Door Type

Electrical

Maximum Alternator Capacity (amps) 140
Maximum Alternator Capacity (amps) 105
Maximum Alternator Watts 1260
Maximum Alternator Capacity (amps) 100
Cold Cranking Amps @ 0° F (Primary) 600
Cold Cranking Amps @ 0° F (2nd) 600
Cold Cranking Amps @ 0° F (2nd)
Maximum Alternator Watts 1200
Maximum Alternator Watts 1680

Engine

Fuel System SFI
SAE Net Horsepower @ RPM 255 @ 4600
SAE Net Torque @ RPM 330 @ 2800
Engine Oil Cooler
Engine Order Code L31
Engine Type Gas V8
Engine Oil Cooler Yes
Displacement 5.7L/350

Exterior Dimensions

Ground Clearance, Rear (in) 7.2
Step Up Height - Front (in)
Step Up Height - Side (in)
Side Door Opening Width (in)
Side Door Opening Height (in)
Rear Door Opening Width (in) 61.4
Rear Door Opening Height (in) 34.2
Ground Clearance, Front (in) 10.5
Ground to Top of Load Floor (in) 29.2
Overhang, Rear w/bumper (in) 46.2
Overhang, Front (in) 35.8
Height, Overall (in) 72.8
Width, Max w/o mirrors (in) 76.8
Length, Overall w/rear bumper (in) 199.6
Wheelbase (in) 117.5

Frame

Frame Type Ladder

Fuel Tank

Aux Fuel Tank Location
Fuel Tank Capacity, Approx (gal) 30
Aux Fuel Tank Capacity, Approx (gal)
Fuel Tank Location Behind Rear Axle

Interior Dimensions

Front Head Room (in) 39.9
Front Shoulder Room (in) 64.7
Front Hip Room (in) 59.9
Second Head Room (in) 38.9
Second Shoulder Room (in) 64.8
Second Leg Room (in) 36.2
Second Hip Room (in) 59.7
Passenger Capacity 5
Passenger Capacity 6
Front Leg Room (in) 41.7

Mileage

EPA Fuel Economy Est - City (MPG) 14
EPA Fuel Economy Est - Hwy (MPG) 18

Steering

Steering Type Pwr Speed-Sensitive
Turning Diameter - Wall to Wall (ft) 44.2
Turning Diameter - Curb to Curb (ft) 39.8
Steering Ratio (:1), At Lock 15.6
Steering Ratio (:1), On Center 16.5

Summary

Body Code E55
Body Style 1500 4dr
Vehicle Name GMC Yukon
Body Code ZW9

Suspension

Stabilizer Bar Diameter - Front (in) 1.25
Axle Capacity - Front (lbs) 3600
Stabilizer Bar Diameter - Rear (in)
Axle Capacity - Rear (lbs) 3750
Axle Ratio (:1) - Front
Axle Ratio (:1) - Rear 3.73
Axle Ratio (:1) - Rear 3.42
Shock Absorber Diameter - Front (mm) 46
Shock Absorber Diameter - Front (mm) 36
Shock Absorber Diameter - Rear (mm) 46
Shock Absorber Diameter - Rear (mm) 36
Axle Type - Rear Semi-Floating
Axle Type - Front Independent
Spring Capacity - Rear (lbs) 3750
Spring Capacity - Front (lbs) 3200
Spring Capacity - Front (lbs) 3600
Suspension Type - Rear 2-Stage Multi-Leaf
Suspension Type - Front Indep Coil Spring

Tires

Spare Tire Order Code QFN
Front Tire Order Code QFN
Rear Tire Order Code QFL
Rear Tire Order Code QFN
Front Tire Order Code QFL
Spare Tire Size P235/75R15
Rear Tire Size P235/75R15
Front Tire Size P235/75R15
Front Tire Capacity (lbs) 1763
Rear Tire Capacity (lbs) 1763
Spare Tire Capacity (lbs) 1763
Revolutions/Mile @ 45 mph - Front 722
Revolutions/Mile @ 45 mph - Rear 722
Revolutions/Mile @ 45 mph - Spare 722
Spare Tire Order Code QFL

Trailering

Dead Weight Hitch - Max Tongue Wt. (lbs) 500
Dead Weight Hitch - Max Trailer Wt. (lbs) 5000
Dead Weight Hitch - Max Trailer Wt. (lbs) 2000
Dead Weight Hitch - Max Tongue Wt. (lbs) 200
Wt Distributing Hitch - Max Trailer Wt. (lbs) 7000
Wt Distributing Hitch - Max Trailer Wt. (lbs) 6000
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1050
Wt Distributing Hitch - Max Tongue Wt. (lbs) 450
Fifth Wheel Hitch - Max Trailer Wt. (lbs) N/A
Fifth Wheel Hitch - Max Tongue Wt. (lbs) N/A

Transmission

Seventh Gear Ratio (:1)
Transfer Case Model
Trans PTO Access
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 Electronic
Trans Description Cont. Automatic w/OD,
Trans Type 4
Trans Order Code M30
Drivetrain Rear-Wheel Drive
Transfer Case Power Take Off
Transfer Case Gear Ratio (:1), Low
Transfer Case Gear Ratio (:1), High

Vehicle

Rear Door Type Tailgate
Rear Door Type Panel Doors

Weight Information

Curb Weight - Rear (lbs) 2327
Gross Combined Wt Rating (lbs) 12,000
Gross Vehicle Weight Rating Cap (lbs) 6300
Curb Weight - Front (lbs) 2584
Gross Axle Wt Rating - Rear (lbs) 3686
Gross Axle Wt Rating - Front (lbs) 3200
Gross Axle Wt Rating - Front (lbs) 3526
Gross Combined Wt Rating (lbs) 11,000

Wheels

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