- Typical tire size information

The illustration indicates typical tire size.
1. Tire use (P = Passenger car, T = Temporary use) 2. Section width (millimeters) 3. Aspect ratio (tire height to section width) 4. Tire construction code (R = Radial, D = Diagonal) 5. Wheel diameter (inches) 6. Load index (2 or 3 digits) 7. Speed symbol (alphabet with one letter)
- Tire dimensions

1. Section width
2. Tire height
3. Wheel diameter
Typical DOT and tire identification number (TIN)
Tire section namesGlossary of tire terminology
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Replacement
REPLACEMENT
PROCEDURE
1. REPLACE RING PIN
NOTICE:
It is not necessary to remove the ring pin unless it is being replaced.
(a) Remove the 12 ring pins.
(b) Using a plastic-faced hammer, install 12 new ring pins.
Standard Protrusion Height:
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Selecting trailer ball
Use the correct trailer ball for your application.
1. Trailer ball load rating
Matches or exceeds the gross trailer weight rating of the trailer.
2. Ball diameter
Matches the size of the trailer coupler. Most couplers are stamped with the required
trai ...