For 1500 Model axles, the fluid level should be even with
the bottom of the fill hole (within 1/4 in (6.4 mm) of edge
of hole) for the FDU215 HD front axle and C235FE rear
axle.
For all 2500/3500 Model axles, the fluid level should be
1/4 in ± 1/4 in (6.4 mm ± 6.4 mm) below the fill hole on
the 9.25 in front and 3/4 in ± 1/4 in (19 mm ± 6.4 mm) on
10.5 in rear axles. The 11.5 in rear axle level should be 1/4
in ± 1/4 in (6.4 mm ± 6.4 mm) below the fill hole.
Drain And Refill
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Lubricant Selection
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further information.NOTE:
The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Limited-Slip Differentials
1500 Model rear axles equipped with a Limited Slip
Differential require that 5 oz. (148 ml) MOPAR® Limited
Slip Additive be added to the gear lubricant. Refer to
“Fluids, Lubricants, and Genuine Parts” in “Maintaining
Your Vehicle” for further information. The MOPAR®
Limited Slip Additive should be added to the gear
lubricant whenever a fluid change is made to an axle
equipped with a Limited Slip Differential.
2500/3500 Model axles DO NOT REQUIREany limited
slip oil additive (friction modifiers).
7
MAINTAINING YOUR VEHICLE 657
Daytime Running Lights....................163
Dealer Service ........................... .635
Defroster, Rear Window .....................225
Defroster, Windshield ..................... .122
Delay (Intermittent) Wipers ..................173
Differential, Limited-Slip ....................440
Disabled Vehicle Towing ....................623
Disposal Antifreeze (Engine Coolant) ................651
Door Locks ..............................34
Door Locks, Automatic ......................37
Driving Off-Pavement ......................... .421
Off-Road ............................ .421
Through Flowing, Rising, or Shallow Standing
Water ............................... .442
Dual Rear Wheels ........................ .507E-85 Fuel
.............................. .526
Electrical Power Outlets .....................208
Electric Rear Window Defrost .................225
Electronically Shifted Transfer Case .............390
Electronic Brake Control System ...............470
Anti-Lock Brake System ..................470
Brake Assist System .....................471
Traction Control System ...................471
Electronic Range Select (ERS) .................361
Electronic Speed Control (Cruise Control) ........180
Electronic Stability Control (ESC) ..............475
Electronic Vehicle Information Center (EVIC) ......193
Emergency Brake ........................ .467
Emergency, In Case of Freeing Vehicle When Stuck ................616
Hazard Warning Flasher ..................571
Jump Starting ......................... .612
Tow Hooks ........................... .618
Emission Control System Maintenance ..........634
10
INDEX 717
