2015 Ram 3500 differential

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 781

Automatic........................... .405
Cold Weather Operation ....................445
Compact Disc (CD) Maintenance ..............392
Compact Spare Tire ....................... .608
Console, Overhead ....................... .209
Contract, Service ......................... .835
Coolant Pressure Cap (Radiator Cap) ...........774
Cooling System .......................... .771
Adding Coolant (Antifreeze) ...............773
Coolant Capacity ...................... .815
Coolant Level ...................771, 775, 777
Disposal of Used Coolant .................775
Drain, Flush, and Refill ...................772
Inspection ........................ .775, 777
Points to Remember .....................777
Pressure Cap ......................... .774
Radiator Cap ......................... .774
Selection of Coolant (Antifreeze) ......772, 815, 817
Corrosion Protection ...................... .786Cupholders
............................ .232
Customer Assistance ...................... .833
Customer Programmable Features .............370
Data Recorder, Event .......................81
Daytime Running Lights ....................167
Dealer Service ........................... .750
Defroster, Rear Window .....................242
Defroster, Windshield ...................116,398
Delay (Intermittent) Wipers ..................177
Differential, Limited-Slip ....................545
Dipsticks Power Steering ........................ .571
Disabled Vehicle Towing ....................737
Disposal Antifreeze (Engine Coolant) ................775
Door Locks Door Locks ............................37
KeyFob...............................37
10
INDEX 845

Flooded Engine Starting....................445
Fluid, Brake ............................ .820
Fluid Capacities ......................... .815
Fluid Leaks .............................118
Fluid Level Checks Brake ............................... .779
Power Steering ........................ .571
Fluids, Lubricants and Genuine Parts ...........817
Fog Lights ....................... .170, 285, 808
Fold Flat Load Floor ...................... .244
Four-Way Hazard Flasher ...................679
Four Wheel Drive ........................ .487
Freeing A Stuck Vehicle .....................730
Front Axle (Differential) .....................780
Fuel .................................. .627
Adding ............................. .636
Clean Air ............................ .629
Ethanol ............................. .629
Filler Cap (Gas Cap) .....................638 Gasoline
............................. .627
Methanol ............................ .629
Octane Rating ..................... .627, 817
Requirements ...................... .627, 815
Tank Capacity ......................... .815
Fuel, Flexible ........................... .633
Fuses ................................. .794
Garage Door Opener (HomeLink®) .........211,218
Gas Cap (Fuel Filler Cap) ................638, 747
Gasoline, Clean Air ....................... .629
Gasoline (Fuel) .......................... .627
Gasoline, Reformulated .....................629
Gauges Speedometer ......................... .285
Tachometer ........................... .285
Gear Ranges ........................ .465, 477
Gear Select Lever Override ..................733
General

Information ...................... .627
848 INDEX

Limited-Slip Differential.................545, 781
Loading Vehicle ......................... .639
Tires ............................... .597
Locks ..................................37
Automatic Door .........................39
Child Protection .........................40
Door .................................37
Power Door ............................39
Low Tire Pressure System ...................619
Lubrication, Body ........................ .763
Lug Nuts .............................. .680
Maintenance Free Battery ....................760
Maintenance Procedures ....................750
Maintenance Schedule ..................... .824
Malfunction Indicator Light (Check Engine) .......748
Manual, Service ......................... .837
Manual Transmission Fluid Level Check ...................... .782Lubricant Selection
..................... .820
Memory Seat ........................... .158
Methanol .............................. .629
Mirrors ............................... .126
Electric Powered ....................... .138
Heated .............................. .139
Memory ............................. .158
Outside ............................. .134
Rearview ......................... .126, 133
Trailer Towing ........................ .140
Modifications/Alterations, Vehicle ...............7
Monitor, Tire Pressure System ................619
MOPAR® Parts ...................... .749, 836
MTBE/ETBE ........................... .629
Multi-Function Control Lever .................175
Navigation System (Uconnect® gps) ............207
New Vehicle Break-In Period .................113
852 INDEX

PowerDistribution Center (Fuses) ................795
Door Locks ............................39
Mirrors ............................. .138
Outlet (Auxiliary Electrical Outlet) ........224, 230
Seats ............................... .142
Sliding Rear Window ....................243
Steering .......................... .569, 571
Sunroof ............................. .220
Windows ..............................46
Power Steering Fluid ...................... .820
Pregnant Women and Seat Belts ................63
Pretensioners Seat Belts ..............................63
Programmable Electronic Features ..........319, 346
Programming Transmitters (Remote Keyless Entry) . .25
Radial Ply Tires ......................... .604
Radiator Cap (Coolant Pressure Cap) ........771, 774Radio Operation
......................... .393
Radio (Sound Systems) .....................390
Rain Sensitive Wiper System .................179
Ramp Travel Index ....................... .527
Rear Axle (Differential) .....................780
Rear Cargo Area Utility Rails .................262
Rear ParkSense System ..................189, 198
Rear Seat, Folding .....................152, 153
Rear Window Features .....................242
Rear Window, Sliding ..................... .244
Reclining Rear Seats ...................... .151
Recorder, Event Data .......................81
Recreational Towing ...................... .667
Shifting into Transfer Case Neutral (N) ........670
Shifting out of Transfer Case Neutral (N) ......673
Reformulated Gasoline .....................629
Refrigerant .......................... .762, 763
Reminder, Seat Belt .........................52
854 INDEX