wheel torque Ram 3500 Chassis Cab 2018 User Guide

TECHNICAL SPECIFICATIONS
CONTENTS
IDENTIFICATION DATA ...................424
â–« Vehicle Identification Number .............424
 BRAKE SYSTEM ....................... .424
â–« Hydraulic Brake Assist ...................425
 WHEEL AND TIRE TORQUE SPECIFICATIONS . .425
â–« Torque Specifications ....................425
 FUEL REQUIREMENTS ...................428
â–« 6.4L Engine .......................... .428
â–« Reformulated Gasoline ..................428
â–« Materials Added To Fuel .................428 â–«
Gasoline/Oxygenate Blends ...............429
â–« Do Not Use E-85 In Non-Flex Fuel Vehicles . . . .429
â–« CNG And LP Fuel System Modifications ......430
â–« MMT In Gasoline ...................... .430
â–« Fuel System Cautions ....................430
â–« Carbon Monoxide Warnings ...............431
 FLUID CAPACITIES ..................... .432
 FLUIDS AND LUBRICANTS ................433
â–« Engine ............................. .433
â–« Chassis ............................ .435
9

Hydraulic Brake Assist
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
system. You may experience some clicking or hissing
noises from the hydro-boost system during hard braking
conditions.
NOTE:Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid reaches
operating temperature.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure that
the wheel is properly mounted to the vehicle. Any time a
wheel has been removed and reinstalled on the vehicle, the
lug nuts/bolts should be torqued using a properly cali-
brated torque wrench using a high quality six sided (hex)
deep wall socket.
Torque Specifications
Lug Nut/
Bolt Torque Lug Nut/
Bolt Type **Lug Nut/
Bolt Size Lug Nut/
Bolt Socket Size
120-150 Ft- Lbs (160-
200 N·m) Cone M14 x 1.50 22 mm
130-160 Ft- Lbs (190-
220 N·m) Flanged
**Use only your authorized dealer recommended lug nuts/
bolts and clean or remove any dirt or oil before tightening.
Inspect the wheel mounting surface prior to mounting the
tire and remove any corrosion or loose particles.
9
TECHNICAL SPECIFICATIONS 425

Retighten the wheel nuts in the same sequence to the
torques listed in the table. Go through the sequence a
second time to verify that specific torque has been
achieved. Retighten to specifications after 25 miles (40 km)
and check the lug nut/bolt torque to be sure that all the lug
nuts/bolts are properly seated against the wheel.It is recommended that wheel stud nuts be kept torqued to
specifications at all times. Torque wheel stud nuts to
specifications at each lubrication interval.
All wheel nuts should be tightened occasionally to elimi-
nate the possibility of wheel studs being sheared or the bolt
holes in the wheels becoming elongated. This is especially
important during the first few hundred miles/kilometers
of operation to allow the wheel nuts to become properly
set. All wheel nuts should first be firmly seated against the
wheel. The wheel nuts should then be tightened to recom-
mended torque. Tighten the wheel nuts to final torque in
increments. Progress around the bolt circle, tightening the
wheel nut opposite to the wheel nut just previously
tightened until final torque is achieved.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts fully until the vehicle has been
lowered. Failure to follow this warning may result in
personal injury.
8/10 Lug Nuts/Bolts Torque Patterns
1 — 10 Bolt Pattern
2 — 8 Bolt Pattern
9
TECHNICAL SPECIFICATIONS 427

Load Capacity...................... .398, 399
Pressure Monitor System (TPMS) .............172
Pressure Warning Light ....................152
Quality Grading ........................ .416
Radial ............................... .404
Replacement ........................... .406
Rotation .............................. .414
Safety ............................ .392, 401
Sizes ................................ .394
Snow Tires ............................ .408
Spare Tire ...................... .409, 410, 411
Spinning .............................. .405
Trailer Towing .......................... .299
Tread Wear Indicators .....................405
Wheel Nut Torque ....................341, 425
Tire Safety Information ...................... .392
Tongue Weight/Trailer Weight .................297
To Open Hood .............................98
Torque Converter Clutch .....................254
Towing ............................. .290, 350
Disabled Vehicle ........................ .350
Guide ................................ .297
Recreational ........................... .309
Weight ............................... .297
Towing Vehicle Behind A Motorhome ............309Traction
................................ .314
Traction Control .......................... .165
Trailer Sway Control (TSC) ....................169
Trailer Towing ............................ .290
Cooling System Tips ..................... .306
Hitches ............................... .296
Minimum Requirements ....................298
Mirrors ................................65
Tips ................................. .305
Trailer And Tongue Weight ..................297
W

iring ............................... .304
Trailer Towing Guide ....................... .297
Trailer Weight ............................ .297
Transfer Case ............................ .391
Electronically Shifted ..................... .259
Fluid ................................ .435
Transmission Automatic ......................... .247, 387
Fluid ................................ .435
Maintenance ........................... .387
Shifting .............................. .245
Transporting Pets ......................... .230
Tread Wear Indicators ...................... .405
Turn Signals ....................... .73, 155, 324
522 INDEX

UconnectCustomer Programmable Features .............451
Uconnect Settings ....................... .441
Uconnect Settings ....................... .451
Uconnect Settings Customer Programmable Features .......36, 449, 470
Passive Entry Programming ...........36, 449, 470
Uconnect Settings .....................449, 470
Uconnect Voice Command ....................484
Uniform Tire Quality Grades ..................416
Universal Garage Door Opener (HomeLink) Programming HomeLink .........100, 101, 103, 104
Unleaded Gasoline ........................ .428
Untwisting Procedure, Seat Belt ................185
Vehicle Identification Number (VIN) .............424
Vehicle Loading ....................... .288, 399
Vehicle Modifications/Alterations .................7
Vehicle Storage ......................... .94, 417
Viscosity, Engine Oil ....................... .366
Voice Recognition System (VR) .................484
Warning Lights (Instrument Cluster Description) . . . .151
Warnings And Cautions .......................7
Warranty Information ...................... .507Washers, Windshield
..................... .77, 363
Washing Vehicle .......................... .418
Water Driving Through ........................ .314
Wheel And Wheel Trim ......................411
Wheel And Wheel Trim Care ..................411
Wheel Cover ............................. .342
Wheel Nut Torque ..................... .341, 342
Wind Buffeting .............................98
Window Fogging ...........................94
Windows .................................96
Power .................................96
Reset Auto-Up ...........................97
Windshield Defroster ....................... .232
Windshield Washers ..................... .77, 363
Fluid .............................. .77, 363
Windshield Wiper Blades .................... .377
W

indshield Wipers ..........................77
Wiper Blade Replacement .....................377
Wipers, Intermittent .........................77
Wipers, Rain Sensitive ........................78
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INDEX 523