Plymouth Gran Fury 1980 Operating Instructions And Product Information page 22

20
Radios
All Chrysler Corporation radios are described in the separate
"Sound System" manual included in your Operator's Manual
literature package.
Self-Adjusting Brake (Rear)
To maintain the correct adjustment, you need only drive your car
in reverse and apply the brakes.
If
further adjustment is needed,
drive forward abou t 20 feet before you repeat the reverse applica-
tion. To avoid poor braking, brake pull, or damage to brake
drums, the brake li nings should be inspected every
30,000
miles
(48 000
km).
O n m odels design ed to be used as taxis, rear drum brakes are
eq u ipped w ith m anual adjusters requ iring periodic in spection
and adjustment (approximately every 9,000 miles [14 000 km]).
Power Disc Brakes (Front)
Disc brakes do not re quire adjus tmen t; however , several hard
stops d uring the break-in period are recommen ded to seat the
linings and wear off an y foreig n material.
Caution
It is important that you do not drive the car with your foot resting
or riding on the brake pedal when braking is not required. This
practice can result in abnormally high brake temperatures, ex-
cessive lining wear and possible damage to the brakes.
Sure-Grip Axle (Optional)
During normal driving and cornering the Sure-Grip unit per-
forms th e same as a conventional differential. On a slippery
surface, however, the differential delivers more of the driving
effort to the wheel having the better traction.
Caution
On cars equipped with a Sure-Grip differential, never run the
engine with one rear wheel off the ground, since the car may be
propelled through the rear wheel remaining on the ground.
Care should be taken to avoid sudden acceleration when both
rear wheels are on a slippery surface. This could cause both rear
wheels to spin, and allow the vehicle to slide sideways on the
crowned surface of a road or in a turn .
Do not install th e "Compact", 60 psi temporary spare tire on cars
equipped with a Sure-Grip differential. When mounted on the
rear the smaller diameter spare can cause unexpected seizure of
the differential.