wheel bolt torque Ram 4500 Chassis Cab 2018 User Guide

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 re-
moved and reinstalled on the vehicle, the lug
nuts/bolts should be torqued using a properly
calibrated 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 x1.50 22 mm
130-160
Ft-Lbs(190-
220 N·m) Flanged
**Use only your authorized dealer recom-
mended 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. 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 hex and the washer.
Ensure that the socket is fully engaged on the
lug nut/bolt (do not insert it half way).
Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel
nuts.
Oil Interface Location
TECHNICAL SPECIFICATIONS
210

Retighten the wheel nuts in the same se-
quence to the torques listed in the table. Go
through the sequence a second time to verify
that specific torque has been achieved. Re-
tighten 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 occasion-
ally to eliminate the possibility of wheel studs
being sheared or the bolt holes in the wheels
becoming elongated. This is especially im-
portant 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 tight-
ened to recommended 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 per-
sonal injury.
Dual Rear Wheels
Slots in the wheels will assist in properly
orienting the inner and outer wheels. Align
these slots when assembling the wheels for
best access to the tire valve on the inner
wheel. The tires of both dual wheels must be
completely off the ground when tightening to
insure wheel centering and maximum wheel
clamping.
Dual wheel models require a special heavy-
duty lug nut tightening adapter (included
with the vehicle) to correctly tighten the lug
nuts. Also, when it is necessary to remove and
install dual rear wheels, use a proper vehicle
lifting device.
Oil Interface Location
211