Chrysler Concorde 1993 Service Manual page 18

0 - 14 LUBRICATION AND MAINTENANCE
sition the vehicle on a level surface and remove fill
plug (Fig. 3). The oil level should be at the bottom
edge of oil fill opening.
The differential does not require periodic mainte-
nance when subjected to normal driving conditions.
The oil should be changed when water contamination
is suspected. If oil has foamy or milky appearance it
probably is contaminated. For proper diagnostic and
service procedures, refer to Group 21, Transaxle.
SELECTING LUBRICANT
Chrysler Corporation recommends Mopar Gear
Lube, SAE 80W-90, or equivalent, be used to fill the
differential.
Fig. 3 Differential Fill Plug
DRIVE SHAFT BOOTS
The front drive shaft constant velocity and tripod
joint boots (Fig. 4) should be inspected when other
under vehicle service is performed. Inspect boots for
cracking, tears, leaks or other defects. If service re-
pair is required, refer to Group 2, Suspension.
Fig. 4 Drive Shaft Boots
WHEEL BEARINGS
The wheel bearings are permanently sealed, re-
quiring no lubrication. For proper diagnostic and ser-
vice procedures refer to Group 2, Suspension.
TIRES
The tires should be inspected at every engine oil
change for proper inflation and condition. The tires
should be rotated at the distance intervals described
in the Lubrication and Maintenance Schedules of the
General Information section in this group. For tire
inflation specifications refer to the Owner's Manual.
A Tire Inflation sticker is located in the driver door
opening. For proper diagnostic procedures, see Group
22, Wheels and Tires.
TIRE ROTATION
The Forward Cross rotation method is recom-
mended for use on Chrysler Corporation vehicles
(Fig. 5). Other rotation methods can be used, but
may not have the benefits of the recommended
method. Only the four tire rotation method can be
used if the vehicle is equipped with a space saver
spare tire.
Fig. 5 Tire Rotation