Bellow is the specifications of 2011 Sierra 2500HD Regular Cab Standard Box 4-Wheel Drive:

Brakes
Brake Type Pwr
Brake ABS System 4-Wheel
Disc – Front (Yes or ) Yes
Disc – Rear (Yes or ) Yes
Front Brake Rotor Diam x Thickness 13.8 x 1.57 in
Rear Brake Rotor Diam x Thickness 14.17 x 1.34 in
Cargo Area Dimensions
Cargo Box Length @ Floor 97.8 in
Cargo Box Width @ Top, Rear N/A in
Cargo Box Width @ Floor 62.5 in
Cargo Box Width @ Wheelhousings 50.6 in
Cargo Box (Area) Height 21.0 in
Tailgate Width 61.6 in
Cargo Volume 75.5 ft³
Cooling System
Total Cooling System Capacity N/A qts
Electrical
Cold Cranking Amps @ 0° F (Primary) 600
Cold Cranking Amps @ 0° F (3rd) N/A
Maximum Alternator Capacity (amps) 125
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year N/A
EPA Greenhouse Gas Score N/A
Engine
Engine Order Code L96
Engine Type Gas V8
Displacement 6.0L/366
Fuel System SFI
SAE Net Horsepower @ RPM 360 @ 5400
SAE Net Torque @ RPM 380 @ 4200
Engine Oil Cooler Yes
Exterior Dimensions
Wheelbase 133.7 in
Length, Overall w/o rear bumper 225.0 in
Width, Max w/o mirrors 80.0 in
Height, Overall 77.5 in
Overhang, Front 38.8 in
Overhang, Rear w/o bumper 52.6 in
Front Bumper to Back of Cab 116.5 in
Cab to Axle 56.0 in
Cab to End of Frame N/A in
Ground to Top of Load Floor 38.6 in
Ground to Top of Frame N/A in
Frame Width, Rear N/A in
Ground Clearance, Front 9.8 in
Ground Clearance, Rear 9.1 in
Body Length 0.00 ft
Cab to Body N/A in
Frame
Frame Type Hydroformed
Sect Modulus Rails Only N/A in³
Frame RBM N/A N/A
Frame Strength N/A lbs
Frame Thickness N/A in
Fuel Tank
Fuel Tank Capacity, Approx 36 gal
Fuel Tank Location N/A
Interior Dimensions
Passenger Capacity 3
Front Head Room 41.3 in
Front Leg Room 41.3 in
Front Shoulder Room 65.2 in
Front Hip Room 60.3 in
Second Head Room N/A in
Second Leg Room N/A in
Second Shoulder Room N/A in
Second Hip Room N/A in
Mileage
Cruising Range – City 0.00 mi
Fuel Economy Est-Combined N/A MPG
Cruising Range – Hwy 0.00 mi
Steering
Steering Type Pwr
Steering Ratio (:1), On Center 24
Steering Ratio (:1), At Lock N/A
Turning Diameter – Curb to Curb 44.9 ft
Turning Diameter – Wall to Wall N/A ft
Suspension
Suspension Type – Front Independent
Suspension Type – Rear Multi-Leaf
Spring Capacity – Front 4400 lbs
Spring Capacity – Rear 6200 lbs
Axle Type – Front Independent
Axle Type – Rear Semi Floating
Axle Capacity – Front 4400 lbs
Axle Capacity – Rear 6200 lbs
Axle Ratio (:1) – Front 3.73
Axle Ratio (:1) – Rear 3.73
Shock Absorber Diameter – Front 35 mm
Shock Absorber Diameter – Rear 35 mm
Stabilizer Bar Diameter – Front 1.31 in
Tires
Front Tire Order Code QHQ
Rear Tire Order Code QHQ
Front Tire Size LT245/75R17
Rear Tire Size LT245/75R17
Front Tire Capacity N/A lbs
Rear Tire Capacity N/A lbs
Spare Tire Capacity N/A lbs
Revolutions/Mile @ 45 mph – Front N/A
Revolutions/Mile @ 45 mph – Rear N/A
Revolutions/Mile @ 45 mph – Spare N/A
Trailering
Dead Weight Hitch – Max Trailer Wt. 5000 lbs
Dead Weight Hitch – Max Tongue Wt. 500 lbs
Wt Distributing Hitch – Max Trailer Wt. 9900 lbs
Wt Distributing Hitch – Max Tongue Wt. 1485 lbs
Maximum Trailering Capacity 14400 lbs
Dead Weight Hitch – Max Trailer Weight 5000.00 lbs
Dead Weight Hitch – Max Tongue Weight 500.00 lbs
Weight Distributing Hitch – Max Trailer Weight 9780.00 lbs
Weight Distributing Hitch – Max Tongue Weight 1173.60 lbs
Fifth Wheel Hitch – Max Trailer Weight 9780.00 lbs
Fifth Wheel Hitch – Max Tongue Weight 2445.00 lbs
Transmission
Drivetrain 4-Wheel Drive
Trans Order Code MYD
Trans Type 6
Trans Description Cont. HD Automatic w/OD
First Gear Ratio (:1) 4.03
Second Gear Ratio (:1) 2.36
Third Gear Ratio (:1) 1.53
Fourth Gear Ratio (:1) 1.15
Fifth Gear Ratio (:1) 0.85
Sixth Gear Ratio (:1) 0.67
Reverse Ratio (:1) 3.06
Final Drive Axle Ratio (:1) N/A
Transfer Case Model Magna MP1222/5/6
Transfer Case Gear Ratio (:1), High 1.00
Transfer Case Gear Ratio (:1), Low 2.69
Weight Information
Trim Curb Weight 5920.00 lbs
Base Trim Weight – Front 3427.00 lbs
Base Trim Weight – Rear 2493.00 lbs
Gross Axle Wt Rating – Front 4400 lbs
Gross Axle Wt Rating – Rear 6200 lbs
Curb Weight – Front 3427 lbs
Curb Weight – Rear 2493 lbs
Option Weight – Front 0.00 lbs
Option Weight – Rear 0.00 lbs
Reserve Axle Capacity – Front 973.00 lbs
Reserve Axle Capacity – Rear 3707.00 lbs
As Spec’d Curb Weight 5920.00 lbs
As Spec’d Payload 3580.00 lbs
Maximum Payload Capacity 3580.00 lbs
Gross Combined Wt Rating 16000 lbs
Gross Axle Weight Rating 10600.00 lbs
Curb Weight 5920.00 lbs
Reserve Axle Capacity 4680.00 lbs
Total Option Weight 0.00 lbs
Gross Vehicle Weight Rating 9500.00 lbs
Wheels
Front Wheel Size 17 x -TBD- in
Rear Wheel Size 17 x -TBD- in
Spare Wheel Size 17 x 7.5 in
Front Wheel Material Steel
Rear Wheel Material Steel
Spare Wheel Material Steel