2018 Ram 3500 wheel torque

After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you can
get any problems taken care of right away and have your
vehicle ready when you need it.
•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
• Check for accumulations of plants or brush. These things
could be a fire hazard. They might hide damage to fuel
lines, brake hoses, axle pinion seals, and propeller shafts.
• After extended operation in mud, sand, water, or similar
dirty conditions, have the radiator, fan, brake rotors,
wheels, brake linings, and axle yokes inspected and
cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
• If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a wheel
imbalance and freeing the wheels of it will correct the
situation.
LIMITED-SLIP DIFFERENTIAL
The limited-slip differential provides additional traction on
snow, ice, mud, sand and gravel, particularly when there is
a difference between the traction characteristics of the
surface under the right and left rear wheels. During normal
6
STARTING AND OPERATING 375

After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you can
get any problems taken care of right away and have your
vehicle ready when you need it.
•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
• Check for accumulations of plants or brush. These things
could be a fire hazard. They might hide damage to fuel
lines, brake hoses, axle pinion seals, and propeller shafts. •
After extended operation in mud, sand, water, or similar
dirty conditions, have the radiator, fan, brake rotors,
wheels, brake linings, and axle yokes inspected and
cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
• If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a wheel
imbalance and freeing the wheels of it will correct the
situation.
444 STARTING AND OPERATING

WARNING!
Raising the vehicle higher than necessary can make the
vehicle less stable. It could slip off the jack and hurt
someone near it. Raise the vehicle only enough to
remove the tire.
5. Remove the lug nuts and pull the wheel off. Install the spare wheel and lug nuts with the cone shaped end of
the lug nuts toward the wheel. Hand tighten the lug
nuts with vehicle lifted. To avoid the risk of forcing the
vehicle off the jack, do not fully tighten the lug nuts until
the vehicle has been lowered.
6. Lower vehicle to ground, finish tightening the lug nuts. Push down on the wrench while at the end of the handle
for increased leverage. Tighten the lug nuts in a star
pattern until each nut has been tightened twice. For the
correct lug nut torque refer to “Torque Specifications” in
“Technical Specifications”. If in doubt about the correct
tightness, have them checked with a torque wrench by
an authorized dealer or service station.
WARNING!
A loose tire or jack thrown forward in a collision or
hard stop, could endanger the occupants of the vehicle.
Always stow the jack parts and the spare tire in the
places provided.
7. Install the wheel center cap and remove the wheel blocks. Do not install chrome or aluminum wheel center
caps on the spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. Stow the replaced tire, jack, and tools as previously described.
9. Adjust the tire pressure when possible.
NOTE: Do not oil wheel studs. For chrome wheels, do not
substitute with chrome plated wheel nuts.
To Stow The Flat Or Spare
NOTE: Vehicles equipped with aluminum wheels cannot
be stored under the vehicle because the wheel retainer will
not fit through the wheel pilot hole. Secure the flat tire in
the bed of the truck. Have the flat tire repaired or replaced
immediately.
480 IN CASE OF EMERGENCY

5. Remove the lug nuts and pull the wheel off. On singlerear-wheel (SRW) trucks, install the spare wheel and lug
nuts with the cone shaped end of the wheel nuts toward
the wheel. On 3500 dual rear-wheel models (DRW)
trucks, if the outer tire is being replaced then leave the
inner wheel on the vehicle. If the inner wheel is being
replaced remove the outer wheel and replace the inner
wheel. The wheel nuts are a two-piece assembly with a
flat face. Lightly tighten the lug nuts. To avoid the risk of
forcing the vehicle off the jack, do not fully tighten the
lug nuts until the vehicle has been lowered.
6. Finish tightening the lug nuts. Push down on the lugwrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until each
nut has been tightened twice. For the correct lug nut
torque refer to “Torque Specifications” in “Technical
Specifications”. If in doubt about the correct tightness,
have them checked with a torque wrench by an autho-
rized dealer or service station.
Rear Inner Wheel Proper Placement
(Dual Rear Wheel Equipped)
Dual Rear Wheel Jack Placement
496 IN CASE OF EMERGENCY

TECHNICAL SPECIFICATIONS
CONTENTS
IDENTIFICATION DATA ...................593
▫ Vehicle Identification Number .............593
 BRAKE SYSTEM ........................593
▫ Hydraulic Brake Assist — 2500/3500 Models Only
(Except Power Wagon) ...................593
 WHEEL AND TIRE TORQUE SPECIFICATIONS . .594
▫ Torque Specifications ....................594
 FUEL REQUIREMENTS ...................596
▫ 3.6L Engine .......................... .596
▫ 5.7L Engine .......................... .596
▫ 6.4L Engine .......................... .597
▫ Reformulated Gasoline ..................597
▫ Materials Added To Fuel .................597
▫ Gasoline/Oxygenate Blends ...............598 ▫
Do Not Use E-85 In Non-Flex Fuel Vehicles . . . .598
▫ CNG And LP Fuel System Modifications ......599
▫ MMT In Gasoline .......................599
▫ Fuel System Cautions ....................599
▫ Carbon Monoxide Warnings ...............600
 FLEXIBLE FUEL (3.6L ENGINE ONLY) ........600
▫ E-85 General Information .................600
▫ Ethanol Fuel (E-85) ..................... .600
▫ Fuel Requirements .....................601
▫ Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) And Gasoline Vehicles ..............601
▫ Starting ............................ .602
▫ Cruising Range ........................602
▫ Replacement Parts ..................... .602
9

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
130 Ft-Lbs (176 N·m) Cone M14 x 1.50 22 mm
140 Ft-Lbs (190 N·m) Flanged
**Use only your authorized dealer recommended lug nuts/
bolts and clean or remove any dirt or oil before tightening. NOTE:
Dual wheels are flat mounted, center piloted. The
lug nuts are a two-piece assembly. When the tires are being
rotated or replaced, clean these lug nuts and add two drops
of oil at the interface between the lug nut/bolt and the
washer. Do not oil wheel studs.
Two-Piece Lug Nut
594 TECHNICAL SPECIFICATIONS

Inspect the wheel mounting surface prior to mounting the
tire and remove any corrosion or loose particles.
Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice. Ensure that the socket is
fully engaged on the lug nut/bolt (do not insert it half-
way).
After 25 miles (40 km), check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated against
the wheel.
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.Wheel Mounting Surface
Four And Five Lug Nuts/Bolts Torque Pattern
9
TECHNICAL SPECIFICATIONS 595

Steering Wheel Audio Controls.................653
Steering Wheel Mounted Sound System Controls . . . .653
Storage Compartment, Center Seat ..............123
Storage, Vehicle ........................105, 584
Storing Your Vehicle ........................584
Sun Roof .................................110
Suspension, Air ........................344, 350
Sway Control, Trailer ........................213
Synthetic Engine Oil ........................530
Tailgate .................................153
Telescoping Steering Column ...................61
Temperature Control, Automatic (ATC) ...........104
Tilt Down ...............................47, 49
Up .................................47, 49
Tilt Steering Column .........................61
Tip Start .................................289
Tire And Loading Information Placard ............564
Tire Markings ............................ .558
Tires......................... .281, 568, 575, 583
Aging (Life Of Tires) ..................... .572
Air Pressure ............................568
Chains ............................... .579
Changing ............................. .468Compact Spare
..........................575
Dual ............................. .582, 594
General Information ...................568, 575
High Speed ............................ .570
Inflation Pressures ........................569
Jacking ............................... .468
Life Of Tires ............................572
Load Capacity .......................564, 565
Pressure Monitor System (TPMS) .............216
Pressure Warning Light ....................194
Quality Grading ........................ .583
Radial ............................... .570
Replacement ............................573
Rotation ...............................580
Safety ............................ .558,568
Sizes .................................560
Snow

Tires ............................ .575
Spare Tire ..........................575, 577
Spinning ...............................571
Trailer Towing .......................... .425
Tread Wear Indicators .....................572
Wheel Nut Torque ........................594
Tire Safety Information .......................558
Tongue Weight/Trailer Weight .................423
694 INDEX