Jeep 2005 Grand Cherokee - Manual (Page 256)

Tire Sizing Chart
EXAMPLE:
Size Designation:
P = Passenger car tire size based on U.S. design standards
؆....blank....؆ = Passenger car tire based on European design standards
LT
= Light Truck tire based on U.S. design standards
T = Temporary Spare tire
31 = Overall Diameter in Inches (in)
215 = Section Width in Milimeters (mm)
65 = Aspect Ratio in Percent (%)
—Ratio of section height to section width of tire.
10.5 = Section Width in Inches (in)
R = Construction Code
— ЉRЉ means Radial Construction.
— ЉDЉ means Diagonal or Bias Construction.
15 = Rim Diameter in Inches (in)
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