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When replacing tires, be sure to purchase the
original size or an acceptable substitute size. Click on your rim size to view a
table listing substitute tire sizes.
General Rules for Replacing Tires
Replacement tires must have:
- load carrying ability equal to or greater than required by vehicle
placard
- inflation pressure capability equal to or greater then the
pressure specified by manufacturer
Tire Mixing
- it is prefered that all 4 tires be the same size, speed rating,
and construction (radial or bias)
- match tire size designations in pairs on an axle, except for
temporary use of a spare tire
- if 2 radial and 2 non-radial tires are used, put the radials on
the rear axle
- snow tires should be applied in pairs to the drive axle (front or
rear) or to all 4 positions
- when studded snow tires are mounted on the front, they also must
be mounted on the rear
- match tire sizes and constructions on 4-wheel drive vehicles
Rim and Wheel Selection
- mount tires only on approved rim widths
- always check to be certain that the diameter designation for both
tire and rim are the same. For example: a P225/75R15 tire must be mounted on a
15" rim
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