Plymouth Gran Fury 1980 Operating Instructions And Product Information page 32

Radial Ply Tires
Radial ply tires provide improved road hazard resistance and
smoother high speed ride. Using radial tires in combination with
bias or bias-belted tires (other than specifically designed compact
spare), will seriously deteriorate vehicle handling. Always use
radial tires in sets of four, and never use them on the front only.
As longer wearing tires can be more susceptible to irregular tread
wear, it is very important to follow the tire rotation interval
recommended to achieve the tread life potential of these tires.
Cuts and punctures in radial tires are repairable only in the tread
area because of sidewall flexing. Consult your tire dealer for
radial tire repairs.
High Speed Pressures
For speeds up to 75 mph (120 kmlh) the pressures listed on the tire
placard are adequate. Emergency vehicles permitted to travel at
higher speeds must increase tire pressures to 35 psi (240 kPa)
front and rear.
Vehicles loaded to the maximum capacity should not be driven at
continuous speeds above 75 mph (120 kmlh).
For police or emergency vehicles that must be driven at continu-
ous speeds over 90 mph (145 km/h), special high speed tires, such
as police pursuit types, must be used.
Pollee Pursuit Vehicles
30 Standard steel belted radial tires are
no~
recommended for police
use because of their poor performance at sustained speeds above
105 mph (168 kmlh). At such speeds, poor vehicle stability may be
experienced, and tire failure with air loss could occur. Special
high performance radials are available for police service. Consult
your dealer for application details.
Tire Size and Types
Only tires shown in the Allowable Tire and Wheel Size chart may
be used on your vehicle. Do not install tires smaller than the
minimum size shown on the tire inflation placard located on the
driver's door latch pillar.
Oversize tires do not provide increased vehicle capacity. They
do, however, provide an extra margin of tread life.
The speedometer of your vehicle is geared for the original
equipment tires. If tires different in size from those originally
installed are used, ask your dealer if a change of the speedometer
drive pinion is necessary to maintain a correct reading.
Allowable Tire and Wheel Sizes
Tire Wheel
P195/75R15*
5
1
/lJJ
1
6JJ
1
7JJ
P205/75R15* 51/21J,
6JJ, 7JJ
P225f70R 15 * 7JJ
*Limited Chain Oearance (No restriction on P195f75 with SAE
type'S' chains).