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nut just previously tightened until final torque is
achieved. Recommended torques are shown in the fol-
lowing chart.
TypeNut Stud
Size Hex Size Torque
Ft LbsTorque
Newton Meters
Cone M14 x 1.5 22 mm120-140 160-190
Flanged M14 x 1.5 22 mm130-160 175-215
JACKING AND TIRE CHANGING 2500 AND 3500
SERIES TRUCKS
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
(Continued)
WARNING! (Continued)
•Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
(Continued)
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WHAT TO DO IN EMERGENCIES 591
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Preparations
1. Park the vehicle on a firm, level surface. Avoid ice orslippery areas.
WARNING!
Do not attempt to change a tire on the side of the
vehicle close to moving traffic, pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
2. Turn on the Hazard Warning flasher.
3. Set the parking brake.
4. Place the shift lever into PARK. On four-wheel drive vehicles, shift the transfer case to the 4L position. 5. Turn the ignition OFF.
Block both the front and rear of the
wheel diagonally opposite the jacking
position. For example, if the right front
wheel is being changed, block the left
rear wheel.
NOTE: Passengers should not remain in the vehicle
when the vehicle is being jacked.
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WHAT TO DO IN EMERGENCIES 597
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CAUTION!
Do not attempt to raise the vehicle by jacking on
locations other than those indicated in the Jacking
Instructions for this vehicle.1. Remove the spare wheel, jack, and tools from storage.
2. Using the lug wrench, loosen, but do not remove, the
wheel nuts by turning them counterclockwise one
turn while the wheel is still on the ground.
3. Placement of the jack:
Jack Warning Label
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4x2 Series Trucks Front Jacking Location
For 2500 and 3500 4x2 series trucks, when changing a
front wheel, place the bottle jack under the frame rail
behind the wheel. Locate the jack as far forward as
possible on the straight part of the frame.
Operate the jack using the jack drive tube and the wheel
wrench. The tube extension, may be used, but is not
required.4x4 Series Trucks Front Jacking Location
For 2500 and 3500 4x4 series trucks, when changing the
front wheel, assemble the jack drive tube to the jack and
connect the drive tube to the extension tube. Place the
4x2 Front Jacking Location
600 WHAT TO DO IN EMERGENCIES
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jack under the axle as close to the tire as possible with the
drive tubes extending to the front. Connect the jack tube
extension and wheel wrench.
4x2 and 4x4 Rear Jacking Location
For 4x2 and 4x4 trucks, when changing a rear wheel,
assemble the jack drive tube to the jack and connect thedrive tube to the extension tube. Place the jack under the
axle between the spring and the shock absorber with the
drive tubes extending to the rear.
Connect the jack tube extension and wheel wrench.
4x4 Front Jacking LocationRear Jacking Location (All)
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These dual rear wheels should be tightened as follows:
1. Tighten the wheel nuts in the numbered sequence to asnug fit.
2. 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 at 100 miles
(160 km) and after 500 miles (800 km).
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.
HOISTING
A conventional floor jack may be used at the jacking
locations. Refer to the graphics that show jacking loca-
tions. However, a floor jack or frame hoist must never be
used on any other parts of the underbody.
CAUTION!
Never use a floor jack directly under the differential
housing of a loaded truck or damage to your vehicle
may result.
Tightening Pattern
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WHAT TO DO IN EMERGENCIES 611