Page 256 of 456

3500 Dual Rear Wheel Models Only
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
system. You may experience some clicking or hissing
noises from the hydro-boost system during hard braking
conditions.
NOTE:Under cold temperatures, pedal effort will be
higher than normal until the power steering oil reaches
operating temperature.
Brake Noise
During normal operation of the brake system certain
noises may be present from time to time. Occasional
groanorsquealnoises may occur during normal
operation of the brake system which may not be indica-
tive of a problem. These noises may be heard at any time
the brakes are applied but may be more noticeable during
the first few brake applications in the morning. Moisture,
hot or cold temperature, dust, and or other debris mayalso contribute to the noise condition. Repeated or con-
tinuous noises during braking may be an indication that
the brake linings are worn and in need of replacement.
Rear Wheel Anti-Lock Brake System — RWAL
The Anti-lock Brake System provides increased vehicle
stability and brake performance under most braking
conditions. The system automatically controls the opera-
tion of the rear brakes to prevent rear wheel lockup.
The system remains operational in the four-wheel drive
mode. The level of performance is reduced when the
front brakes are locked up. This may cause the rear
brakes to lockup through the drivetrain, which may
reduce the effectiveness of the Anti-lock Brake System.
During severe braking conditions, particularly with
changing road surfaces, such as ice to concrete, a slight
drop or minor pulsation may be felt in the brake pedal.
256 STARTING AND OPERATING
Page 346 of 456

▫Air Conditioner Maintenance.............362
▫Power Steering — Fluid Check............363
▫Front Suspension Ball Joints..............364
▫Steering Linkage — Inspection............365
▫Half-Shaft Constant Velocity Joints.........365
▫Front Prop Shaft Lubrication — 2500/3500
(4X4) Models........................365
▫Body Lubrication.....................366
▫Windshield Wiper Blades................366
▫Windshield Washers...................366
▫Exhaust System......................367
▫Cooling System.......................368
▫Hoses And Vacuum/Vapor Harnesses.......372▫Brake System........................372
▫Clutch Hydraulic System................374
▫Clutch Linkage.......................374
▫Rear Axle And 4X4 Front Driving Axle
Fluid Level..........................374
▫Transfer Case........................375
▫Manual Transmission..................376
▫Automatic Transmission................377
▫Front Wheel Bearings..................380
▫Selection Of Lubricating Grease...........380
▫Noise Control System Required Maintenance &
Warranty For 3500 2-Wheel Drive And 4-Wheel
Drive Models Over 10,000 Lbs. (4 535 Kg)
Gross Vehicle Weight Rating..............381
346 MAINTAINING YOUR VEHICLE
Page 363 of 456

NOTE:Refer to Section 3 of the Warranty Information
book for further warranty information.
WARNING!
•Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause
the system to fail, requiring costly repairs.
•The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced repairman.
Refrigerant Recovery and Recycling
R-134a Air Conditioning Refrigerant is a hydrofluorocar-
bon (HFC) that is endorsed by the Environmental Pro-
tection Agency and is an ozone-saving product. How-
ever, the manufacturer recommends that air conditioning
service be performed by dealers or other service facilities
using recovery and recycling equipment.
Power Steering — Fluid Check
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through a certified
DaimlerChrysler Dealership.
MAINTAINING YOUR VEHICLE 363
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Page 364 of 456

WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to insure accurate fluid level reading. Do
not overfill. Use only manufacturers recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to Recommended Fluids, Lubricants, and
Genuine Parts for correct fluid type.
Front Suspension Ball Joints
4 x 2 Models
The ball joints and seals should be inspected whenever
the vehicle is serviced for other reasons.
The ball joints originally supplied with the vehicle are
permanently lubricated at the factory and do not require
service. However, if the seals on the ball joints are
damaged, the joints should be replaced. Serviceable
replacement ball joints are available.
Front suspension ball joints should be replaced only by a
qualified service technician using tools specially de-
signed for this purpose. Damage to the joints and/or
suspension components may result if improper replace-
ment procedures are used.
If seals are damaged the ball joints should be replaced to
prevent leakage or contamination of the grease.
364 MAINTAINING YOUR VEHICLE
Page 406 of 456

Chassis
Component Fluids, Lubricants and Genuine Parts.
Automatic Transmission MoparATF+4, Automatic Transmission Fluid or or equivalent.
Transfer Case MoparATF+4, Automatic Transmission Fluid or equivalent.
Manual Transmission Fluid NV 4500 75W-85 Synthetic, API grade GL4, MoparP/N 4874459 or equivalent.
Manaul Transmission Fluid (G238). MoparATF+4, Automatic Transmission Fluid or equivalent.
Manual Transmission Fluid (G-56) MoparATF+4, Automatic Transmission Fluid or equivalent.
Clutch Linkage Multipurpose Grease, NLGI Grade 2 E.P. or equivalent.
1500 Model Front Axle (4X4) GL-5 SAE 75W-90 or equivalent.
1500 Model Rear Axle MoparSynthetic Gear Lubricant SAE 75W-140 (MS-8985). Limited-Slip
Rear Axles on 1500 Models Require the addition of 118 ml (4 oz.) Mopar
limited slip additive or equivalent.
2500/3500 Model Front and Rear
AxleSynthetic, GL-5 SAE, 75W-90 or equivalent. Limited-Slip 10.5/11.5 inch
Rear AxlesDO NOT REQUIREa limited slip additive.
Brake Master Cylinder MoparDOT 3 and SAE J1703 should be used or equivalent. If DOT 3
brake fluid is not available, then DOT 4 is acceptable. Use only recom-
mended brake fluids.
Power Steering Reservoir MoparATF+4, Automatic Transmission Fluid or equivalent.
406 MAINTAINING YOUR VEHICLE
Page 419 of 456
Miles 93,000 96,000 99,000 100,000 102,000
(Kilometers) (149 000) (154 000) (158 000) (160 000) (163 000)
Change engine oil and engine oil filter at interval
shown or 3 months, whichever comes first.XXX X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4).X X XXX
Rotate tires. X X
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els only.XX
Flush and replace engine coolant, if not replaced at
60 months.X
Flush and replace Power Steering Fluid. X
Inspect brake linings. X
SCHEDULE “B” 419
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Page 424 of 456
Miles 72,000 78,000 84,000 90,000 96,000 100,000
(Kilometers) (115000) (125 000) (134 000) (144 000) (154 000) 160 000
[Months] [72] [78] [84] [90] [96]
Change engine oil and engine oil filter. X X X X X
Rotate tires. X X X X X
Lubricate outer tie rod ends 2500/3500 (4X4)
models only.X X XXX
Check transfer case fluid level (4X4). X
Flush and replace Power Steering Fluid. X
Inspect brake linings. X X
Inspect engine air cleaner filter. Replace if
necessary.X
Replace spark plugs.X
Inspect PCV valve, replace as necessary. **X
Inspect auto tension drive belt and replace if
required (3.7L/4.7L/5.7L).X
424 SCHEDULE “A”
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Page 437 of 456

B-Pillar Location........................ 264
Brake Fluid............................ 406
Brake System........................255,372
Anti-Lock.........................256,257
Disc Brakes.......................... 372
Hoses.............................. 374
Master Cylinder....................... 372
Parking............................. 254
Warning Light........................ 170
Break-In Recommendations, New Vehicle........ 68
Bulb Replacement....................... 391
Bulbs, Light............................ 390
Cab Top Clearance Lights.................. 398
Calibration, Compass..................... 134
Camper............................... 157
Capacities, Fluid........................ 403
Caps, Filler
Fuel.............................285,286Oil (Engine).......................... 356
Power Steering........................ 363
Car Washes............................ 385
Carbon Monoxide Warning............70,158,288
Cargo Light............................ 119
Cassette Tape and Player Maintenance......... 206
Cassette Tape Player................174,177,180
Catalytic Converter....................291,359
CD Changer......................178,189,195
CD Player..................187,191,193,197,200
Cellular Phone.......................... 83
Center High Mounted Stop Light............ 397
Center Lap Belts......................... 42
Center Seat Storage Compartment............ 150
Certification Label....................... 293
Chart, Tire Sizing........................ 261
Check Engine Light (Malfunction Indicator Light) . 165
Child Restraint.......................... 56
Child Restraint Tether Anchors.............60,64
INDEX 437
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