(C) Aspect Ratio: A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 75, as
shown in item C of the light truck (LT-Metric) tire
illustration, it would mean that the tire’s sidewall is
75 percent as high as it is wide.
(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.
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, and air 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.
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Summary of Contents for Silverado Classic 2007
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 106: ... NOTES 106 ...
Page 207: ... NOTES 207 ...
Page 354: ... NOTES 354 ...
Page 484: ...When you open the hood on the 8 1L V8 engine here is what you will see 484 ...
Page 606: ...606 ...
Page 634: ...Engine Drive Belt Routing A Air Conditioning Compressor V6 Engines V8 Engines 634 ...
Page 660: ... NOTES 660 ...