1998 DODGE RAM 1500 FRONT HUB

Miles 22,500 26,250 30,000 33,750 37,500
(Kilometers) (36 000) (42 000) (48 000) (54 000) (60 000)
Change engine oil and engine oil filter. XL²X²XL²X² XL²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XXX
Inspect drive belt, replace as required. X
Inspect fan hub. X
Inspect damper. X
Inspect water pump weep hole for
blockage.X
Replace fuel filter element. Clean the water
in fuel sensor.X
Change rear axle fluid. X
Change front axle fluid (4X4). X
Check transfer case fluid level (4X4). X
Drain and refill automatic transmission fluid.
Replace filter and adjust bands.X
Miles 41,250 45,000 48,750 52,500 56,250
(Kilometers) (66 000) (72 000) (78 000) (84 000) (90 000)
Change engine oil and engine oil filter. X² XL²X²XL²X²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XX
Inspect drive belt, replace as required. X
Inspect water pump weep hole for
blockage.X
Replace fuel filter element. Clean the water
in fuel sensor.X
Inspect brake linings. X
Inspect and adjust parking brake if
necessary.X
Change rear axle fluid. X
Change front axle fluid (4X4). X
0 - 14 LUBRICATION & MAINTENANCEDR
MAINTENANCE SCHEDULES (Continued)

Miles 60,000 63,750 67,500 71,250 75,000
(Kilometers) (96 000) (102 000) (108 000) (114 000) (120 000)
Change engine oil and engine oil filter. XL²X²XL²X² XL²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XXX
Inspect drive belt, replace as required. X
Inspect fan hub. X
Inspect damper. X
Inspect water pump weep hole for
blockage.XX
Replace fuel filter element. Clean the water
in fuel sensor.XX
Inspect front wheel bearings. X
Change rear axle fluid. X X
Change front axle fluid (4X4). X X
Inspect brake linings. X X
Inspect and adjust parking brake if
necessary.XX
Drain and refill transfer case fluid (4X4). X
Drain and refill automatic transmission fluid.
Replace filter and adjust bands.X
Miles 78,750 82,500 86,250 90,000 93,750
(Kilometers) (126 000) (132 000) (138 000) (144 000) (150 000)
Change engine oil and engine oil filter. X² XL²X²XL²X²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XX
Inspect drive belt, replace as required. X
Change rear axle fluid. X
Change front axle fluid (4X4). X
Check transfer case fluid level (4X4). X
Inspect fan hub.X
Inspect damper.X
Inspect water pump weep hole for
blockage.X
Replace fuel filter element. Clean the water
in fuel sensor.X
Inspect front wheel bearings. X
Inspect brake linings.X
Inspect and adjust parking brake if
necessary.X
Drain and refill automatic transmission fluid.
Replace filter and adjust bands.X
DRLUBRICATION & MAINTENANCE 0 - 15
MAINTENANCE SCHEDULES (Continued)

Miles 97,500 100,000 101,250 105,000 108,750 112,500
(Kilometers) (156 000) (160 000) (162 000) (168 000) (174 000) (180 000)
Change engine oil and engine
oil filter.XL²X²XL²X² XL²
Lubricate outer tie rod ends
2500/3500 (4X4) models only.XXX
Flush and replace engine
coolant.X
Inspect drive belt, replace as
required.X
Inspect water pump weep
hole for blockage.X
Replace fuel filter element.
Clean the water in fuel sensor.X
Change rear axle fluid. X
Change front axle fluid (4X4). X
Inspect brake linings. X
Inspect and adjust parking
brake if necessary.X
Miles 116,250 120,000 123,750 127,500 131,250 135,000
(Kilometers) (186 000) (192 000) (198 000) (204 000) (210 000) (216 000)
Change engine oil and engine
oil filter.X² XL²X²XL²X² XL²
Lubricate outer tie rod ends
2500/3500 (4X4) models only.XXX
Clean engine air filter canister.X
Adjust valve lash clearance.X
Inspect drive belts, replace as
required.X
Drain and refill transfer case
fluid (4X4).X
Inspect fan hub. X
Inspect damper. X
Inspect water pump weep
hole for blockage.XX
Replace fuel filter element.
Clean the water in fuel sensor.XX
Inspect front wheel bearings. X
Change rear axle fluid. X X
Change front axle fluid (4X4). X X
Inspect brake linings. X X
Inspect and adjust parking
brake if necessary.XX
Drain and refill automatic
transmission fluid. Replace
filter and adjust bands.X
0 - 16 LUBRICATION & MAINTENANCEDR
MAINTENANCE SCHEDULES (Continued)

²LTier 1 EPA (250 hp or 305 hp) Engines Only
(see engine data label for your engine type)
²² California LEV (235 hp) Engines Only (see
engine data label for your engine type)Inspection and service should also be performed
anytime a malfunction is observed or suspected.
Schedule ªAº
Miles 7,500 15,000 22,500 30,000 37,500
(Kilometers) (12 000) (24 000) (36 000) (48 000) (60 000)
[Months] [6] [12] [18] [24] [30]
Change engine oil and engine oil filter. X² XL²X²XL²X²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XXXX X
Check transfer case fluid level (4X4). X
Inspect water pump weep hole for blockage X X
Replace fuel filter element. Clean the water
in fuel sensor.XX
Inspect drive belts, replace as necessary. X
Inspect brake linings. X
Inspect and adjust parking brake if
necessary.X
Inspect fan hub.X
Inspect damper.X
Inspect front wheel bearings. X
Miles 45,000 52,500 60,000 67,500 75,000
(Kilometers) (72 000) (84 000) (96 000) (108 000) (120 000)
[Months] [36] [42] [48] [54] [60]
Change engine oil and engine oil filter. XL²X²XL²X² XL²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XXXX X
Check transfer case fluid level. X
Flush and replace engine coolant at 60
months, regardless of mileage.X
Inspect drive belts, replace as necessary. X X
Inspect water pump weep hole for blockage X X X
Replace fuel filter element. Clean the water
in fuel sensor.XX
Inspect brake linings. X X
Inspect and adjust parking brake if
necessary.XX
Inspect fan hub. X
Inspect damper. X
Inspect front wheel bearings. X
Replace fuel filter element. Clean the water
in fuel sensorX
DRLUBRICATION & MAINTENANCE 0 - 17
MAINTENANCE SCHEDULES (Continued)

Miles 82,500 90,000 97,500 100,000 105,000
(Kilometers) (132 000) (144 000) (156 000) (160 000) (168 000)
[Months] [66] [72] [78] [84]
Change engine oil and engine oil filter. X² XL²X² XL²
Lubricate outer tie rod ends 2500/3500
(4X4) models only.XXXX X
Flush and replace engine coolant, if not
done at 60 mos.X
Check transfer case fluid level (4X4). X
Inspect drive belt, replace as required. X
Inspect fan hub. X
Inspect damper. X
Inspect water pump weep hole for
blockage.XX
Replace fuel filter element. Clean the water
in fuel sensor.XX
Inspect front wheel bearings. X
Inspect brake linings. X
Inspect and adjust parking brake if
necessary.X
Drain and refill automatic transmission fluid.
Replace filter and adjust bands.X
Miles 112,500 120,000 127,500 135,000 142,500 150,000
(Kilometers) (181 000) (193 000) (205 000) (217 000) (229 000) (241 000)
[Months] [90] [96] [102] [108] [114] [150]
Change engine oil and engine
oil filter.X² XL²X²XL²X² XL²
Lubricate outer tie rod ends
2500/3500 (4X4) models only.XXXXX X
Flush and replace engine
coolant, if it has been 160
000 km (100, 000 miles) or 60
months since last change.X
Inspect drive belt, replace as
required.XX
Drain and refill transfer case
fluid (4X4).X
Check tranfer case fluid level
(4X4).X
Inspect fan hub. X X
Inspect damper. X X
Inspect water pump weep
hole for blockage.XXX
Replace fuel filter element.
Clean the water in fuel
sensor.XXX
0 - 18 LUBRICATION & MAINTENANCEDR
MAINTENANCE SCHEDULES (Continued)

FRONT - INDEPENDENT FRONT SUSPENSION
TABLE OF CONTENTS
page page
FRONT - INDEPENDENT FRONT SUSPENSION
DESCRIPTION
DESCRIPTION........................9
DESCRIPTION........................10
SPECIFICATIONS
TORQUE CHART......................10
SPECIAL TOOLS
FRONT SUSPENSION..................12
BUSHINGS
REMOVAL
REMOVAL - LOWER CONTROL ARM
BUSHINGS - 4WD (LD).................13
REMOVAL - TORSION BAR
CROSSMEMBER BUSHING..............13
REMOVAL - LOWER CONTROL ARM
BUSHINGS - 2WD (LD).................13
INSTALLATION
INSTALLATION - LOWER CONTROL ARM
BUSHINGS - 4WD (LD).................14
INSTALLATION - TORSION BAR CROSS
MEMBER BUSHING....................15
INSTALLATION - LOWER CONTROL ARM
BUSHINGS - 2WD (LD).................15
HUB / BEARING
REMOVAL
REMOVAL - 4X4......................16
REMOVAL - 4X2......................17
INSTALLATION
INSTALLATION - 4X4...................17
INSTALLATION - 4X2...................18
KNUCKLE
DESCRIPTION.........................18
OPERATION...........................18
REMOVAL.............................18
INSTALLATION.........................19
LOWER BALL JOINT
DIAGNOSIS AND TESTING - LOWER BALL
JOINT..............................19
REMOVAL.............................19
INSTALLATION.........................20
LOWER CONTROL ARM
REMOVAL
REMOVAL - 4X4 (LD)...................21REMOVAL - 4X2......................21
INSTALLATION
INSTALLATION - 4X4 (LD)...............21
INSTALLATION - 4X2...................22
SPRING
REMOVAL.............................22
INSTALLATION.........................23
SHOCK
DIAGNOSIS AND TESTING - SHOCK........24
REMOVAL
REMOVAL - 4X2......................24
REMOVAL - 4X4......................24
INSTALLATION
INSTALLATION - 4X2...................24
INSTALLATION - 4X4...................24
STABILIZER BAR
DESCRIPTION.........................24
OPERATION...........................25
REMOVAL.............................25
INSTALLATION.........................25
STABILIZER LINK
REMOVAL
REMOVAL - 4X4......................25
REMOVAL - 4X2......................25
INSTALLATION
INSTALLATION - 4X4...................26
INSTALLATION - 4X2...................26
TORSION BAR
DESCRIPTION.........................26
OPERATION...........................26
REMOVAL.............................26
INSTALLATION.........................27
UPPER BALL JOINT
DIAGNOSIS AND TESTING - UPPER BALL
JOINT..............................27
UPPER CONTROL ARM
REMOVAL.............................28
INSTALLATION.........................28
2 - 8 FRONT - INDEPENDENT FRONT SUSPENSIONDR

FRONT - INDEPENDENT
FRONT SUSPENSION
DESCRIPTION
DESCRIPTION
The front suspension is designed to allow each
wheel to adapt to different road surfaces indepen-
dently. The wheels are mounted to hub/bearings
units bolted to the steering knuckle. The double-row
hub bearings are sealed and lubricated for life. The
steering knuckles turn (pivot) on ball joints.
The front suspension is comprised of (Fig. 1) (Fig.
2):
²Shock absorbers
²Torsion bar - 4X4 (LD only)
²Coil Spring - 4X2
²Control arms
²Steering knuckles
²Stabilizer bar
²Stabilizer link
²Tie Rod Ends
²Hub/Bearing
²Rack & Pinion
²Ball Joints
NOTE: Components attached with a nut must be
torqued to specification.
NOTE: Suspension components with rubber/ure-
thane bushings should be tightened with the vehi-
cle at normal ride height. It is important to have the
springs supporting the weight of the vehicle when
the fasteners are torqued. If springs are not at their
normal ride position, vehicle ride comfort could be
affected and premature bushing wear may occur.
Fig. 1 FRONT SUSPENSION - 4X2
1 - STABILIZER BAR
2 - UPPER CONTROL ARM
3 - STEERING KNUCKLE
4 - ROTOR
5 - CALIPER ADAPTER
6 - OUTER TIE ROD END
7 - STABILIZER LINK
8 - LOWER CONTROL ARM
9 - RACK & PINION
10 - COIL SPRING
11 - SHOCK ABSORBER
DRFRONT - INDEPENDENT FRONT SUSPENSION 2 - 9

DESCRIPTION N´m Ft. Lbs. In. Lbs.
Lower Suspension Arm
Frame Nuts204 150 Ð
Lower Suspension Arm
Frame Nuts285 210 Ð
Lower Suspension Arm
Ball Joint Nut
1500 series only52
Then an additional 90É38
Then an additional 90ÉÐ
Lower Suspension Arm
Ball Joint Nut
(HD 4X2 only135 100 Ð
Upper Suspension Arm
Frame Nuts
(LD)132 97 Ð
Upper Suspension Arm
Frame Nuts
(HD 4X2 only)170 125 Ð
Upper Suspension Arm
Ball Joint Nut
1500 series only54
Then an additional 90É40
Then an additional 90ÉÐ
Stabilizer Bar
Frame Bolt61 45 Ð
Stabilizer Link
Lower Control Arm Nut102 75 Ð
Stabilizer Link
Stabilizer Bar Nut38 27 Ð
Hub/Bearing
Bolts
(LD)163 120 Ð
Hub/Bearing
Bolts
(HD 4X2)176 130 Ð
Tie Rod End
Nut61
Then an additional 90É45
Then an additional 90ÉÐ
DRFRONT - INDEPENDENT FRONT SUSPENSION 2 - 11
FRONT - INDEPENDENT FRONT SUSPENSION (Continued)