(D) Construction Code: A letter code is used to
indicate the type of ply construction in the tire. The letter
R means radial ply construction; the letter D means
diagonal or bias ply construction; and the letter B means
belted-bias ply construction.
(E) Rim Diameter: Diameter of the wheel in inches.
(F) Service Description: The service description
indicates the load range and speed rating of a tire. The
load index can range from 1 to 279. Speed ratings
range from A to Z. The light truck tire size example
above shows dual or single tire configurations.
Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight: This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power
steering, power brakes, power windows, power seats,
andair conditioning.
Aspect Ratio: The relationship of a tire’s height
to its width.
Belt: A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead: The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire: A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold Inflation Pressure: The amount of air pressure in
a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. See Inflation - Tire Pressure on page 5-82.
Curb Weight: This means the weight of a motor
vehicle with standard and optional equipment including
the maximum capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings: A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation motor vehicle safety
standards. The DOT code includes the Tire Identification
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand and date of production.
5-79
Summary of Contents for Silverado 2004
Page 5: ...These are some examples of symbols that may be found on the vehicle v ...
Page 80: ...United States without Passenger Sensing System Canada with Passenger Sensing System 1 74 ...
Page 92: ... NOTES 1 86 ...
Page 167: ... NOTES 3 3 ...
Page 168: ...Instrument Panel Overview 3 4 ...
Page 202: ...Canada with Passenger Sensing System Canada without Passenger Sensing System 3 38 ...
Page 414: ...When you lift up the hood on the VORTEC 8100 V8 engine you will see the following 5 18 ...
Page 490: ...Removing the Spare Tire and Tools Regular Cab and Crew Cab Extended Cab 5 94 ...
Page 497: ...Front Position 2WD 1500 Series Front Position All Other Models 5 101 ...
Page 524: ...5 128 ...
Page 532: ... NOTES 5 136 ...
Page 550: ...Engine Drive Belt Routing V6 Engines V8 Engines 6 18 ...