1993 DODGE TRUCK AUX

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Page 133 of 1502

DODGE TRUCK 1993 Service Repair Manual
3
- 4
REAR SUSPENSION
AND
AXLE

•
SHOCK
ABSORBER

REMOVAL (1) Raise and support the vehicle.
(2) Remove the retaining locknut and bolt from the
frame crossmember at the upper end of the

3
- 4
REAR SUSPENSION
AND
AXLE

•
SHOCK
ABSORBER

REMOVAL (1) Raise and support the vehicle.
(2) Remove the retaining locknut and bolt from the
frame crossmember at the upper end of the shock ab sorber (Fig. 1). BOLT

SPRING
BRACKET
AND STUD LOCKNUT
BUMPER LOCKNUT
OUTER
INNER RETAINER
RETAINER
J90T7-31
Fig.
1 Rear
Shock
Absorber

(3) Remove the locknut and the outer retainer
from the spring bracket stud (Fig. 1).
(4) Remove the rear shock absorber and the inner
retainer from the vehicle (Fig. 1).
INSTALLATION (1) Before installing the shock absorber, ensure
that the bushing is inserted in the shock absorber
eye.

Ensure the shock absorber is positioned on the
stud with the retainers correctly located on ei
ther side of the bushing (Fig. 1).
(2) Position the inner retainer and shock absorber
eye on the spring bracket stud. Install the outer re
tainer and the locknut (Fig. 1). Tighten the locknut finger-tight.
(3) Rotate the shock absorber upward and position
the upper end at the frame crossmember.
(4) Align and insert the bolt through the upper
shock absorber eye and the crossmember (Fig. 1).
(5) Install the locknut on the upper bolt and
tighten it finger-tight.
(6) Remove the supports and lower the vehicle to
the surface. (7) Tighten the shock absorber nuts to 82 N*m (60
ft. lbs.) torque.

SPRINGS
REMOVAL (1) Raise and support the frame until all weight is
removed from the rear springs. The vehicle must be raised under the frame
side rail at the crossmember behind the axle.
Use care to avoid bending the side rail flange.
(2) Position support stands under the frame side

rails.

(3) Remove the nuts, lockwashers, and U-bolts that
attach the spring to the axle (Fig. 2, 3 and 4).
U-BOLT

SPRING
SPRING
SHACKLE
FRAME
RAIL

LOCKNUT LOCKNUT
LOCKNUT AXLE TUBE
BRACKET
AND
STUD
NUT
J9017-3Q
Fig.
2
Spring—
W-150 Vehicles

U-BOLT^
U-BOLT
~ '
PLATE

IB*

AUXILIARY SPRING
SPRING

FRAME
RAIL
PIVOT

BRACKET
^ . , _
BOLT

'PIVOT'
WA^HFP
^
in^gJ
\
BRACKET
BRACKET WASHER
^

FRONT
C3>
>>JL
^ T^1
AXLE TUBE
LOCKNUT
——Hr
SPRING BRACKET
J9017-34
Fig.
3
Spring
& Auxiliary
Spring—D-250,
350

Vehicles

Page 134 of 1502

DODGE TRUCK 1993 Service Repair Manual
•

Fig.
4
Spring
& Auxiliary Spring—W-250, 350
Vehicles
(4) Remove the nuts and bolts from the spring
front and rear eyes. Remove the spring from the ve
hicle (Figs. 2, 3 and 4).
INSTA

•

Fig.
4
Spring
& Auxiliary Spring—W-250, 350
Vehicles
(4) Remove the nuts and bolts from the spring
front and rear eyes. Remove the spring from the ve
hicle (Figs. 2, 3 and 4).
INSTALLATION (1) Position the spring on the axle shaft tube so
that the spring center bolt is inserted into the locat ing hole in the axle tube spring pad (Figs. 2, 3 and

4).
(2) Align the spring front eye with the bolt hole in
the front bracket and install the eye pivot bolt and nut (Figs. 2, 3 and 4). (3) Align the spring rear eye with the bolt hole in
the spring shackle or the rear bracket (as applicable) and install the spring eye pivot bolt and nut (Figs. 2,
3 and 4).
(4) Tighten the spring front and rear eye pivot bolt
nuts until all separation between the metal is re
moved.
(5) Install the U-bolts, replacement lockwashers
and the retaining nuts (Figs. 2, 3 and 4). (6) Tighten the nuts until they force the lockwash
ers flush against the spring bracket. (7) Align the auxiliary spring with the primary
spring (Figs. 2, 3 and 4).
(8) Remove the supports and lower the vehicle so
that the weight is being supported by the tires.
(9) Tighten the spring retaining nuts according to
the following specifications:
• U-bolt nuts (1/2-20) - 88 N*m (65 ft. lbs.) torque
# U-bolt nuts (9/16-18) - 149 N-m (110 ft. lbs.)
torque —
REAR SUSPENSION
AND
AXLE
3 • 5

Fig.
5 Leaf
Spring
Disassembly

(4) Insert a long drift or punch into the center bolt
hole and slowly release the vise jaws.
(5) Remove the spring from the vise. Replace the
broken/defective
leaf.
Insert a long drift or punch into the spring center bolt hole.
(6) Position the spring between vise jaws and
slowly tighten the vise jaws. Keep the spring leaves
aligned with the long drift or punch.
(7) Remove the drift/punch from the spring center
bolt hole. Install a replacement center bolt and nut (Fig. 5).
(8) Tighten the nut to 20 N-m (15 ft. lbs.) torque.
An alternate is to tighten until the center of the spring has no gaps. Use a maximum of 54 N*m (40 ft.
lbs.) torque for this method.
(9) Install the alignment clips.
(10) Install the spring in the vehicle. If necessary
refer to the installation procedure.

LEAF SPRING EYE BUSHING REPLACEMENT
(1) Assemble tools shown (Fig. 6). Tighten the nut
located at the socket wrench end of the threaded rod
until the bushing is forced out. (2) Assemble and align the bushing installation

tools.
• Spring front and rear eye pivot bolt nut (1/2-20) —
88 N«m (65 ft. lbs.) torque
© Spring front and rear eye pivot bolt nut (5/8-18) — 135 N»m (100 ft. lbs.) torque
• Spring front and rear eye pivot bolt nut (3/4-16) — 183 N-m (135 ft. lbs.) torque

SPRING
LEAF—REPLACEMENT
If a spring has acquired a set (lost significant
height), it should be replaced. (1) Remove the spring from the vehicle. If neces
sary, refer to the removal procedure. (2) Remove the spring leaf alignment clips.
(3) Clamp the spring in a vise. Remove the nut
and center bolt (Fig. 5).

Page 186 of 1502

DODGE TRUCK 1993 Service Repair Manual
REAR
SUSPENSION
AND
AXLE
3 - 59

TORQUE
SPECIFICATIONS

REAR
SUSPENSION
COMPONENTS 8 3/8 AND 9 1/4 INCH
AXLE

REAR
SUSPENSION
COMPONENTS
DESCRIPTION
TORQUE
Jounce Bumper to Bracket

Page 280 of 1502

DODGE TRUCK 1993 Service Repair Manual
•

COOLING
SYSTEM
7 - 9 COOLING SYSTEM DIAGNOSIS (EXCEPT DIESEL)—CONTINUED

Condition
and Chock

Diagnosis

POOR
HEATER
PERFORMANCE.
SUSPECT

THERMOSTAT
FAILED
IN
OPEN
POSITION.

Page 285 of 1502

DODGE TRUCK 1993 Service Repair Manual
7 - 14 COOLING SYSTEM
• DIESEL COOLING SYSTEM DIAGNOSIS-CONTINUED

CONDITION
AND
CHECKS
DIAGNOSIS

POOR
HEATER
PERFORMANCE.
SUSPECT

THERMOSTAT
FAILED
IN
OPEN
POSITION.

(1)
Does

Page 307 of 1502

DODGE TRUCK 1993 Service Repair Manual
7 - 36
COOLING
SYSTEM

• (4) Connect coolant hoses to cooler.

(5)
Connect battery cable to battery.

(6)
Fill cooling system. Refer to Refilling Cooling
System in this section. (7) Check

7 - 36
COOLING
SYSTEM

• (4) Connect coolant hoses to cooler.

(5)
Connect battery cable to battery.

(6)
Fill cooling system. Refer to Refilling Cooling
System in this section. (7) Check transmission oil level and fill as neces
sary.

TRANSMISSION
OIL/TO-AIR
COOLER
Oil to air transmission coolers are mounted ahead
of the radiator and operate in conjunction with the
main cooler (Figs, 52 or 53). The transmission oil is
routed through the main cooler first, then the auxil iary cooler, before returning to the transmission.
FRONT
OIL-TO-AIR
COOLER

RADIATOR
RADIATOR GRILL SUPPORT RETURN JO

_
TRANSMISSION

*
PRESSURE

(FROM BOTTOM COOLER)
VIEW
IN
CIRCLE J9007-75 Fig.
52
Transmission
Oil-to-Air Cooler—Except

Diesel—
Typical

AUXILIARY
OIL TO AIR
COOLER
J9107-73
Fig.
53
Transmission
Oil-to-Air
Cooler—Diesel

Engine—Typical
COOLING
SYSTEM FAN—GAS ENGINES

Also refer to Viscous Fan Drive in this group for
additional information.
REMOVAL (1) Disconnect negative battery cable from battery.
(2) Remove throttle cable at top of fan shroud.
(3) Unsnap coolant reserve/overflow tank from fan
shroud and lay aside. The tank is held to shroud
with T-shaped slots. Do not disconnect hose or drain
coolant from tank.
(4) The thermal Viscous Fan Drive/Fan Blade As
sembly is attached (threaded) to water pump hub
shaft (Fig. 54). Remove fan blade/viscous fan drive
assembly from water pump by turning mounting nut
counterclockwise as viewed from front. Threads on
viscous fan drive are RIGHT HAND. A Snap-On 36
MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be
used. Place a bar or screwdriver between water pump
pulley bolts (Fig. 54) to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive as
sembly from vehicle at this time.
FAN BLADE

ASSEMBLY

THREADED NUT WATER
PUMP

PULLEY
PULLEY
BOLTS
WATER PUMP
THREADED SHAFT
(WATER PUMP HUB)
VISCOUS
FAN DRIVE CRANKSHAFT
PULLEY
J9307-32

Fig.
54 Fan
Blade/Viscous
Fan
Drive—Gas
Engines
Do not unbolt fan blade assembly (Fig. 54) from
viscous fan drive at this time.
(5) Remove fan shroud attaching hardware (two
bolts at bottom-two clips at top). (6) Remove fan shroud and fan blade/viscous fan
drive assembly as a complete unit from vehicle.
After removing fan blade/viscous fan drive assem
bly, do not place viscous fan drive in horizontal po sition. If stored horizontally, silicone fluid in the
viscous fan drive could drain into its bearing assem
bly and contaminate lubricant.

Page 454 of 1502

DODGE TRUCK 1993 Service Repair Manual
•

LAMPS
8L - 11
BULB
APPLICATION

GENERAL
INFORMATION
The following Bulb Application Table lists
the

lamp title
on the
left side
of the
column
and
part
number
on the
right.

C

Page 799 of 1502

DODGE TRUCK 1993 Service Repair Manual
13
- 12
FRAME AND BUMPERS
TO FRONT

END
WIRING
(SEE
SH
21)

T
T
18BK
18BK

YL* TO HEADLAMP
Jr

SWITCH -L2
14LG
TO FRONT
END
WIRING
(SEE
SH
22)

BLACK (RIGHT
SIDE

RADI

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