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IDENTIFYING DAMAGED WHEELS
Periodically check to see if any of the following symptoms exist, in 
which case the wheel must be replaced:•
 If the flange is bent.
•
 If welds or rivets are leaking.
•
 If the stud holes are elongated and not round. (Improper lug nut 
tightening could cause this.)
•
 If there are cracks in the wheel.
WORN OUT TIRES
Tires must be replaced when tread is worn to 2/32” (1.6 mm). 
Treadwear indicators on Toyo tire treads show the 2/32” depth (1.6 
mm). Most states require that tires be replaced when the tread depth is\
 
worn to 2/32” (1.6 mm). Tires may lose sufficient wet and snow traction 
before reaching 2/32” (1.6 mm) of wear. Many wet weather accidents 
result from skidding on worn out tires.
Excessively worn tires are more susceptible to penetrations. Consider 
replacing your tires earlier if you drive in snow or wet conditions.
Any retail tire dealer will be glad to measure your tire’s tread depth  
for you. Toyo Tires recommends that tires be replaced in matched sets 
of four.
TIRE REPAIRS
If any tire has sustained a puncture, have the tire dismounted and 
inspected internally by an authorized Toyo Tires dealer for possible 
damage that may have occurred. Only specially trained personnel 
using the proper tools and procedures should repair tires. 
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• Match tire size designations in pairs on an axle, except during the 
temporary use of a spare tire.
•
 If two radial tires and two non-radial tires are used on a vehicle, put 
the radials on the rear axle. If radial and non-radial tires are used 
on a vehicle equipped with dual rear tires, the radial tires may be 
used on either axle.
SPEED-RATED TIRES •
 If the vehicle Tire Information Placard and/or the vehicle Owner’s 
Manual specifies speed-rated tires, the replacement tires must 
have the same or higher speed rating to maintain vehicle speed 
capability.
•
 If a replacement tire has a lower speed capability than that 
specified by the vehicle manufacturer, the vehicle’s speed must 
be restricted to that of the replacement tire. Vehicle handling 
could also be affected. Consult the vehicle Owner’s Manual or tire 
manufacturer for recommendations.
•
 If tires with different speed ratings are used, it is recommended 
that the lower-speed-rated tires always be placed on the front axle. 
This is to prevent a potential oversteer condition.
FOUR-WHEEL DRIVE (4WD) AND ALL-WHEEL DRIVE 
(AWD) VEHICLES
If no instructions for tire mixing appear in the vehicle Owner’s Manual, 
follow these guidelines: •
 Do not mix tire sizes. All four tires must be marked with the same 
tire size, unless otherwise specified by the vehicle manufacturer . 
This also applies to winter/snow tires.
•
 Do not mix tread pattern types such as all-terrain and all-season.
STUDLESS WINTER/SNOW TIRES •
 It is always preferable to apply winter/snow tires to all wheel 
positions, including dual tires, to maintain vehicle mobility  
and control.
•
 If winter/snow tires are applied to the front axle of any vehicle, 
winter/snow tires must also be installed on the rear axle. DO NOT 
apply winter/snow tires only to the front axle. This applies to all