Research 2008 Chevrolet Avalanche specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

LS 2WD Crew Cab LS


Brake Type Pwr
Disc - Rear (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 13 x 1.18
Rear Brake Rotor Diam x Thickness (in) 13.5 x .78
Drum - Rear (Yes or )
Rear Drum Diam x Width (in)
Disc - Front (Yes or ) Yes
Brake ABS System (Second Line)
Brake ABS System 4-Wheel

Cargo Area Dimensions

Cargo Box (Area) Height (in) 22.5
Cargo Volume (ft³) 45.5
Cargo Box Width @ Top, Rear (in) 50.0
Cargo Box Length @ Floor (in) 63.0 Min, 98.2 Max
Tailgate Width (in) - TBD -
Ext'd Cab Cargo Volume (ft³)
Cargo Box Width @ Wheelhousings (in) 50.0
Cargo Box Width @ Floor (in) 50.0

Cooling System

Total Cooling System Capacity (qts) 15.9
Total Cooling System Capacity (qts) 16.8


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


Displacement 5.3L/325
SAE Net Horsepower @ RPM 366 @ 5500
SAE Net Horsepower @ RPM 320 @ 5200
SAE Net Torque @ RPM 380 @ 4300
SAE Net Torque @ RPM 340 @ 4200
Engine Oil Cooler
Engine Order Code LMG
Engine Order Code L76
Engine Order Code LY5
Engine Type Gas/Ethanol V8
Engine Type Gas V8
Displacement 6.0L/366
Fuel System SFI

Exterior Dimensions

Cab to End of Frame (in)
Ground Clearance, Rear (in) - TBD -
Ground Clearance, Front (in) - TBD -
Frame Width, Rear (in)
Ground to Top of Frame (in)
Ground to Top of Load Floor (in) 31.0
Cab to Axle (in)
Front Bumper to Back of Cab (in)
Overhang, Rear w/o bumper (in) 52.9
Overhang, Front (in) 38.8
Height, Overall (in) 76.6
Height, Overall (in) - TBD -
Width, Max w/o mirrors (in) 79.1
Length, Overall w/o rear bumper (in) 221.3
Wheelbase (in) 130.0


Frame Type Body on

Fuel Tank

Fuel Tank Capacity, Approx (gal) 31
Fuel Tank Location Inboard LH Frame Rail
Aux Fuel Tank Capacity, Approx (gal)
Aux Fuel Tank Location

Interior Dimensions

Second Head Room (in) 40.0
Second Leg Room (in) 39.1
Second Shoulder Room (in) 65.2
Second Hip Room (in) 62.3
Passenger Capacity 6
Front Head Room (in) 41.1
Front Leg Room (in) 41.3
Front Shoulder Room (in) 65.3
Front Hip Room (in) 64.4


EPA Fuel Economy Est - City (MPG) 14
EPA Fuel Economy Est - City (MPG) 12
EPA Fuel Economy Est - Hwy (MPG) 20
EPA Fuel Economy Est - Hwy (MPG) 17


Turning Diameter - Curb to Curb (ft) 43.0
Steering Ratio (:1), At Lock 3.0
Steering Ratio (:1), On Center 17.75
Turning Diameter - Wall to Wall (ft)
Steering Type Pwr


Body Style 4 Door Crew Cab
Vehicle Name Chevrolet Avalanche
Body Code


Axle Ratio (:1) - Rear 4.10
Axle Ratio (:1) - Rear 3.73
Shock Absorber Diameter - Front (mm) 1.81
Shock Absorber Diameter - Rear (mm) 1.81
Stabilizer Bar Diameter - Front (in) 1.42
Stabilizer Bar Diameter - Rear (in) 1.12
Suspension Type - Rear Multi-Link
Suspension Type - Front Coil Over Shock
Spring Capacity - Front (lbs) 3400
Spring Capacity - Rear (lbs) 4000
Axle Type - Front Independent
Axle Type - Rear Semi-Floating
Axle Capacity - Front (lbs) 3400
Axle Capacity - Rear (lbs) 4000
Axle Ratio (:1) - Front


Spare Tire Capacity (lbs) - TBD -
Front Tire Order Code QAS
Front Tire Order Code QSS
Front Tire Order Code QXN
Front Tire Order Code QAN
Rear Tire Order Code QAS
Rear Tire Order Code QSS
Rear Tire Order Code QXN
Rear Tire Order Code QAN
Spare Tire Order Code ZRS
Front Tire Size P275/55R20
Front Tire Size P265/65R18
Front Tire Size P265/70R17
Rear Tire Size P275/55R20
Rear Tire Size P265/65R18
Rear Tire Size P265/70R17
Spare Tire Size P265/70R17
Front Tire Capacity (lbs) 2134
Front Tire Capacity (lbs) - TBD -
Front Tire Capacity (lbs) 2135
Rear Tire Capacity (lbs) 2134
Rear Tire Capacity (lbs) - TBD -
Rear Tire Capacity (lbs) 2135
Spare Tire Capacity (lbs) 2134
Spare Tire Capacity (lbs) 2135
Revolutions/Mile @ 45 mph - Front
Revolutions/Mile @ 45 mph - Rear
Revolutions/Mile @ 45 mph - Spare


Dead Weight Hitch - Max Tongue Wt. (lbs) 600
Wt Distributing Hitch - Max Trailer Wt. (lbs) - TBD -
Wt Distributing Hitch - Max Trailer Wt. (lbs) 8200
Wt Distributing Hitch - Max Trailer Wt. (lbs) 8000
Wt Distributing Hitch - Max Trailer Wt. (lbs) 7200
Wt Distributing Hitch - Max Tongue Wt. (lbs) - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1230
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1200
Dead Weight Hitch - Max Trailer Wt. (lbs) 5000
Fifth Wheel Hitch - Max Tongue Wt. (lbs) N/A
Fifth Wheel Hitch - Max Trailer Wt. (lbs) N/A
Wt Distributing Hitch - Max Tongue Wt. (lbs) 1080


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 M30
Trans Order Code M70
Drivetrain Rear Wheel Drive
Transfer Case Power Take Off
Transfer Case Gear Ratio (:1), Low
Transfer Case Gear Ratio (:1), High
Transfer Case Model
Trans PTO Access N/A
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

Weight Information

Gross Combined Wt Rating (lbs) 14000
Gross Combined Wt Rating (lbs) - TBD -
Gross Vehicle Weight Rating Cap (lbs) 7000
Curb Weight - Rear (lbs) 2656
Curb Weight - Front (lbs) 2824
Gross Axle Wt Rating - Rear (lbs) 4100
Gross Axle Wt Rating - Front (lbs) 3400
Gross Combined Wt Rating (lbs) 13000


Rear Wheel Material Aluminum
Front Wheel Size (in) 20 x 8.5
Spare Wheel Material Steel
Front Wheel Size (in) 18 x 8
Front Wheel Size (in) 17 x 7.5
Rear Wheel Size (in) 20 x 8.5
Rear Wheel Size (in) 18 x 8
Rear Wheel Size (in) 17 x 7.5
Spare Wheel Size (in) 17
Front Wheel Material Aluminum