
4 INTRODUCTION 
• VEHICLE DIMENSIONS 
VEHICLE 
FAMILY 
 WHEELBASE 
AVAILABLE 
 CAB
 TO 
AXLE  BODY 
TYPE 
 SfANDAID
 SODIES
 AVAILABLE 
VEHICLE 
 FAMILY 
 WHEELBASE 
AVAILABLE 
 CAB
 TO 
AXLE  BODY 
TYPE 
 NOMINAL 
LENGTH 
 (LOAD
 SPACE
 D 
MENSIONS
 (2) 
VEHICLE 
 FAMILY 
 WHEELBASE 
AVAILABLE 
 CAB
 TO 
AXLE  BODY 
TYPE 
 NOMINAL 
LENGTH  LENGTH  MAX. 
WIDTH 
 HEIGHT 
VOLUME 
AD-1
 AD-5 
 2921
 mm 
(115
 in)  — 
Sweptline 
1981
 mm 
(6.5
 ft) 
 1981
 mm 
(78
 in) 
 1778 mm 
(70
 in) 
 485 mm 
19.1
 in)  1.71 m3 
(60.35
 ft3) 
AD-1
 AD-2 
AD-3
 AD-5 
AD-6
 AD-7 
 3327
 mm 
(131
 in)  — 
Sweptline 
2438 mm 
(8
 ft) 
 2489 mm 
(98
 in) 
 1778 mm 
(70
 in) 
 485 mm 
(19.1
 in) 
 2.15
 m3 
(75.8
 ft3) 
AD-2
 AD-3 
 AD-7 
 3327
 mm 
(131
 in) 
 1422 mm 
(56
 in) 
 Chassis 
Cab 
 2438 mm 
(8
 ft) 
 — 
—  — — 
AD-3
 AD-7 
 3249 mm 
(135
 in) 
 1524 mm 
(60
 in) 
 Chassis 
Cab 
 2896 mm 
(9.5
 ft)  — 
— — — 
AD-3 
 4039 mm 
(159
 in) 
 2134 mm 
(84
 in) 
 Chassis 
Cab 
 3810 mm 
(12.5
 ft) 
 — 
— — 
AD-4 
 2692
 mm 
(106
 in) 
 Sport 
Utility 
4x2 
 — 
1778 mm  1588 mm 
(62.5
 in) 
 1062 mm 
(41.8
 in) 
 2.99
 m3 
(105.8
 ft3) 
AD-8 
 2692
 mm 
(106
 in) 
 Sport 
Utility 
4x4 
 — 
1778 mm  1588 mm 
(62.5
 in) 
 1062 mm 
(41.8
 in) 
 2.99
 m3 
(105.8
 ft3) 
AD-1 
 3378 mm 
(133
 in)  — 
Sweptline 
1981
 mm 
(6.5
 ft) 
 1984 mm 
(78.1
 in) 
 1778 mm 
(70
 in) 
 485 mm 
(19.1
 in)  1.71 m3 
(60.4
 ft3) 
AD-1
 AD-2 
AD-5
 AD-6 
 3785 mm 
(149
 in)  — 
Sweptline 
Club
 Cab  2438 mm 
(8
 ft) 
 2489 mm 
(98
 in) 
 1778 mm 
(70
 in) 
 485 mm 
(19.1
 in) 
 2.15
 M3 
(75.8
 ft3) 
®
 Driver seat
 to
 tailgate. 
 (2)
 Based
 on
 S.A.E.
 procedure
 Jl
 100. J901N-34 
 VEHICLE
 WEIGHTS 
The Vehicle Weights chart provides: 
• The Gross Vehicle Weight Rating (GVWR), 
• The payload 
• The curb weight
 for
 each vehicle type/wheelbase 
TRAILER
 TOWING
 SPECIFICATIONS 
 The Trailer Towing Specifications chart provides: 
• The maximum trailer tongue weight 
• The maximum trailer weight 
• The maximum combined weight of the trailer/load/ 
towing vehicle with
 a
 specific engine/transmission/  axle combination. 
VEHICLE
 DIMENSION 
The Vehicle Dimension chart provides
 the
 dimen
sions
 for
 each type
 of
 Ram Truck, Ram Chassis Cab 
and Ramcharger vehicle. 
ENGINE/TRANSMISSION/GVWR 
 The Engine/Transmission/GVWR chart provides 
the maximum load data
 for
 each vehicle combina tion.   

2
 - 6
 FRONT
 SUSPENSION
 AND
 AXLE 
• 
(5) Position the adjustment sleeve clamps so the 
ends are not located at the sleeve slot. Tighten the 
clamp bolt nuts to 26 N*m (225 in. lbs.) torque. 
Tighten Model D350 and all 4WD vehicle (heavy 
duty tie rods) nuts to 34 N*m (25 ft. lbs.) torque. En
sure clamp bolts are located at the underside of the 
sleeve. 
 CLAMP
 RN1036 
Fig.
 3 Toe Position Adjustment
 (Typical) 
ALIGNMENT
 SPECIFICATIONS 
ALIGNMENT
 (4WD) 
 ASGSPTABLE RANGE 
PREFERRED 
Camber 
 -rto+r 
0° 
"Caster 
 +
 1/2°
 to
 37*° 
+2° 
King
 Pin
 Inclination 
 8.5° 8.5° 
Toe-In
 (at
 Hub
 Height) 
 -0.05°
 to
 +0.45° 0.20° 
ALIGNMENT
 (2WD) 
 ACCEPTABLE RANGE PREFERRED 
Camber 
 0°to 1° 
+1/2° 
'Caster 
 -1°
 to
 +2° 
+1/2° 
Toe-in
 (at
 Hub
 Height) 
 0°
 to
 0.50° 0.25° 
Turning
 Angle
 (Base
 Tire)
 Left
 and
 Right 
 33° 
33°
 J9102-64 
*lf vehicle
 wanders,
 caster
 should
 be increased. If steering
 effort
 is very
 high
 (especially when cornering), caster
 should
 be decreased. 
 TIE
 RODS   

• 
FRONT
 SUSPENSION
 AND
 AXLE
 2 • 7 
FRONT SUSPENSION
 —2WD
 VEHICLES 
INDEX 
page 
Coil Springs
 9 
 Lower Ball Stud
 . 10 
Lower Suspension
 Arm 10 
Lower Suspension
 Arm
 Bushing
 11 
Lower Suspension
 Arm
 Strut
 8 
Service
 Information
 7 
Shock
 Absorber
 9 
 page 
Stabilizer
 Bar 8 
Steering Knuckle
 13 
 Upper Ball Stud
 11 
Upper Suspension
 Arm 11 
Upper Suspension
 Arm
 Bushing Replacement
 . . . 12 
Wheel
 Hub and
 Bearings
 7 
SERVICE
 INFORMATION 
 Periodic lubrication of the front suspension (steer
ing) system components is required. Refer to Group  0, Lubrication And Maintenance for the service in
terval. 
Rubber bushings must never be lubricated. 
All front suspension components that are 
cushioned by rubber should be tightened with 
the suspension system at the normal height. 
WHEEL
 HUB
 AND
 BEARINGS 
REMOVAL  (1) Block the brake pedal in the up (non-depressed) 
position. 
(2) Raise and support the vehicle. 
(3) Remove the wheel. 
(4) Remove bolts from the disc brake caliper. 
(5) Separate the disc brake caliper from the rotor. 
Position and support the caliper away from the im
mediate work area. Do not allow the caliper to 
hang from the brake fluid hose. 
(6) Remove the dust cap, cotter pin, and remaining 
hub components from the spindle (Fig. 1). 
CAUTION:
 Use care
 to
 prevent
 the
 inner wheel bear
ing
 and
 bearing seal from contacting
 the
 steering 
knuckle spindle threads during removal
 (Fig. 1). 
Otherwise,
 the
 threads, bearing,
 and
 seal could
 all 
 be damaged. 
(7) Carefully slide the wheel hub/rotor from steer
ing knuckle spindle (Fig. 1). 
(8) For bearing cleaning or replacement, remove 
the seal and inner wheel bearing from the wheel 
hub/rotor bore (Fig. 1). 
CLEANING AND INSPECTION  (1) Thoroughly clean both wheel bearings and in
terior of the hub/rotor (Fig. 1). Remove all of the  residual lubricant. 
(2) To clean the bearings: 
• Soak them in an appropriate cleaning solvent 
 BRAKE
 INNER 
Fig.
 1 Front
 Wheel
 Bearings
 &
 Hub/Rotor 
• Strike the flat of each bearing against a hardwood 
block several times  • Flush bearing between strikes 
• Repeat the procedure above until each bearing is 
clean 
• Dry the bearings with compressed air but do not  spin them 
(3) After cleaning, apply engine oil to each bear
ing.  (4) Rotate each bearing slowly while applying 
downward force. Examine the rollers for pitting and 
roughness. Replace worn or otherwise defective bear
 ings.
 If a bearing has pitted and/or rough surfaced 
rollers, replace both the bearing and bearing cup  (Fig. 1). 
(5) If reusable, remove the engine oil from each 
bearing. Pack each bearing with multi-purpose  NLGI, grade 2, EP-type lubricant. Place the bearings 
in a clean, safe place. 
Ensure that lubricant is forced into all the cav
ities between the bearing cage and rollers.   

• 
FRONT
 SUSPENSION
 AND
 AXLE
 2 - 15 Ensure the shock absorber is positioned on the 
stud with retainers correctly located (Fig. 2). 
 (2)
 Position the inner retainers on the mounting 
studs. 
(3) Install the shock on the upper and lower stud 
and install the outer retainers. 
(4) Install the nuts on the frame bracket and axle 
(Fig. 2).  (5) Tighten the shock absorber upper and lower 
nuts; 
 • Standard shock upper and lower nut to 75 Nnn (55 
ft. lbs.) torque 
• Air-adjustable shock upper nut to 75 N»m (55 ft. lbs.) torque, lower nut to 271 Nnn (200 ft. lbs.) 
torque 
CAUTION:
 Vehicles
 with
 air
 shocks MUST
 maintain 
a
 minimum
 pressure
 of 10 to 15 psi (70 to 105 kPa).  Operation below the specified minimum
 pressures 
may cause damage. 
(6) Remove the supports and lower the vehicle. 
LEAF
 SPRINGS 
 REMOVAL 
 (1) Raise and support the frame until all weight is 
removed from the front springs.  (2) With the front tires in contact with the surface, 
position support stands under the frame side rails.  (3) Remove the nuts, lockwashers, U-bolts that at
tach the spring to the axle shaft tubes (Fig. 3). 
 SPRING 
BRACKET  SPRING 
BRACKET SPRING 
SHACKLE 
 PLATE 
FRONT 
 SPRING 
 AXLE
 TUBE  U-BOLT LEFT
 SIDE 
J9017-33 
Fig.
 3 Front
 Suspension 
 (4) Remove the spring front eye pivot nut and bolt, 
rear spring shackle nuts, shackle plates. Remove the  spring from the vehicle (Fig. 3). 
 INSTALLATION 
(1) Align the spring front eye with the bolt hole in 
the frame bracket and install the pivot bolt and nut  (Fig. 3).  (2) Position the shackle plates at the spring rear 
eye and frame rail bracket. Install the nuts (Fig. 3).  (3) Tighten the shackle plate nuts and front pivot 
bolt nut until all slack is taken up.  (4) Position the spring on the axle tube with the 
spring center bolt seated in locating hole in axle tube 
pad (Fig. 3). 
(5) Install the U-bolts, new lockwashers and nuts. 
(6) Tighten the nuts snug against the spring 
bracket. 
(7) Remove the supports and lower the vehicle 
with the weight being supported by the tires.  (8) Tighten the spring nuts according to the follow
ing specifications: 
• Model 44 Axle:  U-bolt/Stud nuts - 115 Nnn (85 ft. lbs.) torque 
Front pivot bolt/nut — 135 Nnn (100 ft. lbs.) torque 
Rear shackle bolt/nut — 81 Nnn (60 ft. lbs.) torque 
• Model 60 Axle:  U-bolt nuts - 129 Nnn (95 ft. lbs.) torque Front pivot bolt/nut - 135 Nnn (100 ft. lbs.) torque 
Rear shackle bolt/nut - 108 Nnn (80 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. 4). 
 SPRING 
CENTER 
 RATCHET 
AND 
SOCKET 
WRENCH 
Fig.
 4 Leaf
 Spring
 Disassembly 
 (4) Insert a long drift or punch into the center bolt 
hole and slowly release the vise jaws.   

2
 - 38
 FRONT
 SUSPENSION
 AND
 AXLE 
• 
PINION GEAR DEPTH VARIANCE 
Or§@ift^i
 Linton 
 IsptocMnwtt
 HnS®n
 Oior Itoplli
 fflttanct 
Or§@ift^i
 Linton 
-4 
-2 
-1 
 0 
+
 1 
-ft 
+3 
+4 
+4 
 +
 0.008 
+
 0.007 
+
 0.006 
+
 0.005 
+
 0.004 
+
 0.003 
 +
 0.002 
 +
 0.001 
 0 
+3 
 +
 0.007 
+
 0.006 
+
 0.005 
+
 0.004 
+
 0.003 
+
 0.002 
+
 0.001 
 0 
-0.001 
+2 
 +
 0.006 
+
 0.005 
+
 0.004 
+
 0.003 
+
 0.002 
+
 0.001 
 0 
-0.001 
-0.002 
+
 1 
 +
 0.005 
+
 0.004 
+
 0.003 
+
 0.002 
+
 0.001 
 0 
-0.001 
 -0.002 
-0.003 
0 
 +
 0.004 
+
 0.003 
+
 0.002 
+
 0.001 
 0 
-0.001 
 -0.002 
-0.003 
-0.004 
-1 
 +
 0.003 
+
 0.002 
+
 0.001 
 0 
-0.001 
 -0.002 
-0.003  -0.004 
-0.005 
-2 
 +
 0.002 
+
 0.001 
. 0 
 -0.001 
-0.002 
-0.003  -0.004 
-0.005 -0.006 
-3 
 +
 0.001 
0 
-0.001 
 -0.002 
-0.003 -0.004 
-0.005  -0.006 
-0.007 
-.4 
 0 
-0.001 
 -0.002 
-0.003 -0.004  -0.005 
-0.006 
-0.007 
-0.008 
PINION
 GEAR
 DEPTH
 MEASUREMENT
 AND 
ADJUSTMENT
 WITH TOOL SET D-11144 
 The following gear depth measurement and adjust
ment procedure involves using Tool Set D-115-44.  (1) Insert Master Pinion Block D-139 into the
 dif
ferential housing (Fig. 57). 
PINION BLOCK TOOL  PINION BLOCK TOOL 
J8902-46 
DIFFERENTIAL 
 HOUSING 
ARBOR
 DISC
 TOOL 
 ARBOR 
TOOL 
J9003-103 
 DIFFERENTIAL 
HOUSING 
 J9003-101 
Fig.
 57
 Pinion
 Block
 In Shaft
 Bore 
(2) Place Disc D-115-4 on Arbor D-115-3 and posi
tion in the bearing cradles (Fig. 58). This is the cen
terline of the ring gear/axle shaft.  (3) Place Pinion Height Block D-115-1 on top of 
master pinion block tool and against arbor tool (Fig. 
 59). 
(4) Place Gauge Block D-115-2 and Dial Indicator 
D-106-5 on lowest step of block tool (Fig. 60). Zero 
the dial indicator pointer. 
 Fig.
 58
 Disc
 &
 Arbor
 In
 Housing 
(5) Move the gauge block toward the arbor until 
the indicator plunger contacts the arbor tool (Fig. 
 60).
 Slide the gauge block across the arbor while ob
serving indicator. Record the longest travel distance, 
whether inward (-) or outward (+•), indicated by the 
pointer. 
The distance indicated, plus or minus the 
amount etched in the gear is the required thick
ness. 
(6) Measure the thickness of each depth shim with 
a micrometer and combine the shims necessary for 
total required pack thickness. Include oil slinger 
thickness with the total shim pack thickness if 
required. 
(7) Remove the measurement tools from the differ
ential housing.   

• 
FRONT
 SUSPENSION
 AND
 AXLE
 2 - 39 
Fig.
 59
 Pinion
 Height
 Block
 Against
 Arbor 
 Fig.
 60
 Pinion
 Gear Depth Measurement 
(8) Place the depth shims in the pinion gear rear 
bearing bore. Install the bearing cup (Fig. 61) with  Installer D-145 and Handle C-4171. 
Ensure the cup is correctly seated. (9) Install the pinion front bearing cup with In
staller D-144 and Handle C-4171 (Fig. 62). 
(10) Install the rear bearing (and slinger if used) 
on the pinion gear with Installer W-262 until com
pletely seated (Fig. 63). 
(11) Assemble preload shims onto pinion and in
stall the pinion gear in housing. 
(12) Install pinion front bearing, oil slinger, yoke, 
washer and nut. Install the yoke with Installer  C-3718 and Wrench C-3281 (Fig. 64). 
(13) Tighten the yoke nut to 271-298 N-m (200-220 
ft. lbs.) torque.  (14) Check bearing preload torque with an inch 
pound torque wrench (Fig. 65). The torque necessary 
to rotate the pinion gear should be; 
• Original Bearings — 1 to 3 N*m (10 to 20 in. lbs.) 
• New Bearings — 2 to 5 N*m (20 to 40 in. lbs.) 
 SPECIAL
 TOOL 
C-4171
 J9202-95 
 Fig.
 61
 Pinion
 Rear Bearing Cup
 Installation 
SPECIAL
 TOOL 
 D-144
 SPECIAL  Fig.
 62
 Pinion
 Front Bearing Cup
 Installation 
If the preload torque is not within the specified tol
erance, correct the shim thickness accordingly (Fig. 
 66); 
• Increase the preload torque, decrease the shim 
thickness 
• Decrease the preload torque, increase the shim 
thickness 
(15) Remove the pinion yoke nut and washer. Use 
Remover C-452 and Wrench C-3281 to remove the 
pinion yoke (Fig. 67). 
(16) Apply a light coating of gear lubricant on the 
lip of pinion seal. Install the new seal (Fig. 68) with 
Installer W-147-E and Handle C-4171 
(17) Install the yoke with Installer C-3718 and 
Wrench C-3281 (Fig. 64).  (18) Install a new yoke nut and tighten to 271 to 
298 N-m (200 to 220 ft. lbs.) torque.   

• 
TAPERED 
BUSHING 
J9202-53 
Fig.
 32 Tapered
 Bushing
 Installation 
J9202-52 
Fig.
 33
 Lower
 King
 Pin and Retainer
 Installation 
 (12) Install the axle shaft, refer to Axle Shaft and 
U-Joint Installation. 
COMPLETE
 AXLE REMOVAL/INSTALLATION SERVICE
 INFORMATION 
 It is not necessary to remove the complete front 
axle from the vehicle for routine service. If the hous
ing or axle shaft tubes are damaged, the complete  axle can be removed and installed via the following 
procedures. 
REMOVAL 
 (1) Block the brake pedal in the up position. Raise 
and support the vehicle at a comfortable working 
height. 
(2) Remove the front wheels/tires. 
 FRONT SUSPENSION
 AND
 AXLE
 2 - 59 
(3) Mark the front drive shaft and the pinion yoke 
for installation alignment reference. 
(4) Disconnect the front drive shaft from the axle 
yoke. Attach the drive shaft to the frame rail with 
 wire. 
(5) Remove the cotter pin, the nut, and disconnect 
the drag link from the steering knuckle arm (left  side only). Discard the cotter pin. 
(6) Disconnect flexible brake fluid hose fittings at 
the frame crossmember. Plug the hoses at the fit
tings. 
 (7) Remove the shock absorber lower nut and stud 
from the axle shaft tube bracket. Remove the nuts  and disconnect the stabilizer bar links from the 
spring brackets.  (8) Remove nuts and the washers from the spring 
U-bolts. Remove the complete front axle from the ve
hicle. 
INSTALLATION  (1) Position the front axle under the front of the 
vehicle with the axle spring pads under the springs. 
Place the spring brackets over the springs. Make  sure the stabilizer bar link bolt holes face toward the 
rear of the vehicle. 
(2) Install the spring U-bolts, washers and nuts. 
Refer to Front Suspension — 4WD Vehicles within 
this group.  (3) Install the shock absorber. Refer to Front Sus
pension—4 WD Vehicles within this group. 
(4) Connect the stabilizer bar links to the spring 
brackets. Refer to Front Suspension—4WD Vehicles  within this group. 
(5) Remove plugs and connect the brake hose fit
tings.
 Refer to Group 5, Brakes.  (6) Connect the drag-link ball stud to the steering 
knuckle arm. Refer to Group 19, Steering.  (7) Connect the drive shaft to the pinion yoke with 
the installation reference marks aligned. Install the 
washers and the nuts and tighten to 19 N-m (14 ft.  lbs.) torque. 
(8) Remove the supports, lower the vehicle and re
move the block from the brake pedal. 
(9) Raise the vehicle. 
• Bleed and adjust the brakes 
• Lubricate all the ball stud fittings 
• Inspect the differential housing lubricant level. Re
fer to Group 0, Lubrication and Maintenance. 
(10) Lower the vehicle and test the axle and sus
pension operation. 
DIFFERENTIAL DISASSEMBLY 
REMOVAL/DISASSEMBLY 
 (1) Note the installation reference letters 
stamped on the bearing caps and housing ma
chined sealing surface (Fig. 34). 
(2) Remove the differential bearing caps.   

2
 - 66
 FRONT
 SUSPENSION
 AND
 AXLE 
• 
PINION
 GEAR
 DEPTH
 MEASUREMENT
 AND 
ADJUSTMENT
 WITH
 TOOL
 SET
 D-116  The following gear depth measurement and adjust
ment procedure involves using Tool Set D-116.  (1) Insert Master Pinion Block D-120 into the
 dif
ferential housing (Fig. 53). 
Fig.
 53
 Pinion
 Block
 In Shaft
 Bore 
(2) Place Disc D-116-2 on Arbor D-115-3 and posi
tion in the bearing cradles (Fig. 54). This is the cen
terline of the ring gear/axle shaft. 
Fig.
 54
 Disc
 &
 Arbor
 In
 Housing 
(3) Place Pinion Height Block D-116-1 on top of 
master pinion block tool and against arbor tool (Fig. 
55). 
(4) Place Gauge Block D-115-2 and Dial Indicator 
D-106-5 on lowest step (Fig. 56). Zero the dial indi
cator pointer. 
(5) Move the gauge block toward the arbor until 
the indicator plunger contacts the arbor tool (Fig. 
 56).
 Slide the gauge block across the arbor while ob
serving indicator. Record the longest travel distance, 
whether inward (-) or outward
 (
 + ), indicated by the 
pointer. 
 Fig.
 55
 Pinion
 Height
 Block
 Against
 Arbor 
Fig.
 56
 Pinion
 Gear Depth Measurement 
Plunger travel distance indicated, plus or mi
nus the amount etched in gear is required thick
ness. 
(6) Measure the thickness of each depth shim with 
a micrometer and combine the shims necessary for 
total required pack thickness. Include oil slinger 
thickness with the total shim pack thickness. 
(7) Remove the measurement tools from the differ
ential housing. 
(8) Place the depth shims in the pinion gear rear 
bearing bore. Install the bearing cup (Fig. 57) with 
Installer D-lll and Handle C-4171. 
Ensure the cup is correctly seated. (9) Install the pinion front bearing cup with In
staller C-4203 and Handle C-4171 (Fig. 58).  (10) Install the rear bearing (and slinger if used) 
on the pinion gear with Installer C-3095-A until 
completely seated (Fig. 59). 
(11) Assemble preload shims onto pinion and in
stall the pinion gear in housing.