Page 411 of 496

Brake Hoses
Inspection should be performed whenever the brake
system is serviced or at intervals specified. Inspect hy-
draulic brake hoses for surface cracking, scuffing or worn
spots. If there is any evidence of cracking, scuffing, or
worn spots, the hose should be replaced immediately!
Eventual deterioration of the hose can take place with
possible burst failure.
Clutch Linkage
If the clutch pedal linkage begins to squeak or grunt, the
clutch pedal pivot bushings should be lubricated. Refer
to Fluids, Lubricants and Genuine Parts for the correct
lubricant type. Multipurpose Grease, NLGI Grade 2 E.P.
Clutch Hydraulic System
The clutch hydraulic system is a sealed maintenance-free
system. In the event of leakage or other malfunction, the
system must be replaced.
Rear Axle And 4x4 Front Driving Axle Fluid Level
For Model 9.25 Front Axles and 10.5”/11.5” Rear Axles
refer to Fluids, Lubricants and Genuine Parts for the
correct lubricant type. For normal service, periodic fluid
level checks are not required. When the vehicle is ser-
viced for other reasons, the exterior surfaces of the axle
assembly should be inspected.
When checking the fluid level, the vehicle should be in a
level position. The fluid level should be 1/4” ± 1/4” (6.4
mm ± 6.4 mm) below the fill hole on the 9.25” Front Axle.
The fluid level should be 3/4” ± 1/4” (19 mm ± 6.4 mm)
below the fill hole on all 10.5” and 1/4” ± 1/4” (6.4 mm
± 6.4 mm) on 11.5” Rear Axles.
Drain And Refill
Vehicles operated in normal service do not have regularly
scheduled oil changes. If fluid has become contaminated
MAINTAINING YOUR VEHICLE 411
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Page 413 of 496

Lubricant Selection for 6-Speed Manual
Transmission — If Equipped
If it becomes necessary to add fluid or change the fluid,
be sure to use the same lubricant or equivalent. Refer to
Fluids, Lubricants and Genuine Parts for the correct
lubricant type.
Automatic Transmission
Fluid Level Check
The fluid level should be checked when the engine is
fully warmed up and the fluid in the transmission is at
normal operating temperature. Operation of the trans-
mission with an improper fluid level will greatly reduce
the life of the transmission and of the fluid. Check the
fluid level whenever the vehicle is serviced.
Procedure For Checking Fluid Level
To properly check the automatic transmission fluid level,
the following procedure must be used: 1. The vehicle must be on level ground.
2. The engine should be running at curb idle speed for a
minimum of 60 seconds.
3. Fully apply parking brake.
4. Place the gear selector briefly in each gear position
ending with the lever in N (Neutral).
5. Remove the dipstick and determine if the fluid is hot
or warm. Hot fluid is approximately 180°F (82°C) which
is the normal operating temperature after the vehicle has
been driven at least 15 miles. The fluid can not be
comfortably held between the finger tips. Warm is when
fluid is between 85° - 125°F (29° - 52°C).
6. Wipe the dipstick clean and reinsert until seated.
Remove dipstick and note reading.
a. If the fluid is hot, the reading should be in the
crosshatched area marked “OK”.
MAINTAINING YOUR VEHICLE 413
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Page 447 of 496
Chassis
Component Fluids, Lubricants and Genuine Parts.
Automatic Transmission Mopar ATF+4, Automatic Transmission Fluid.
Transfer Case Mopar ATF+4, Automatic Transmission Fluid.
Manual Transmission Fluid G-56 Mopar ATF+4, Automatic Transmission Fluid.
Clutch Linkage Multipurpose Grease, NLGI Grade 2 E.P. or equivalent.
Front and Rear Axle Fluid 2500/3500
Models GL-5 SAE 75W-90 Synthetic or equivalent. 2500/3500 axels do not require
limited slip additive.
Brake Master Cylinder Mopar DOT 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 Mopar ATF+4, Automatic Transmission Fluid.
MAINTAINING YOUR VEHICLE 447
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Page 452 of 496
Once a Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the batteries and clean and tighten the termi-
nals as required.
•Check the fluid levels of coolant reservoir, brake
master cylinder, and transmission and transfer case (if
equipped), add as needed.
•Check Filter Minder™. Replace air cleaner filter
element if necessary.
•Check all lights and all other electrical items for correct
operation.
•Drain water from the fuel filter. At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect the brake hoses.
•Inspect the U-Joints ( if equipped) and front suspen-
sion components.
•Check the automatic transmission fluid level.
•Check the manual transmission fluid level.
•Check the coolant level, hoses, and clamps.
•Lubricate outer tie rod ends.
•Lubricate Front Drive Shaft Fittin
452 MAINTENANCE SCHEDULES
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Page 454 of 496
Miles 3,750 7,500 11,250 15,000 18,750
(Kilometers) (6 000) (12 000) (18 000) (24 000) (30 000)
Change engine oil and engine oil filter. X X
Lubricate Front Drive Shaft Fitting (2500/3500,
4X4). X X XXX
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage. XX
Lubricate outer tie rod ends 2500/3500 (4X4) mod-
els. XX
Replace fuel filter element. X
Change rear axle fluid. X
Change front axle fluid (4X4). X
Inspect brake linings. X
Inspect and adjust parking brake if necessary. X
454 SCHEDULE “B”
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Page 456 of 496
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. X X
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4)
models. X X XXX
Rotate tires. X X
Check spare tire for proper pressure and correct
stowage. XX
Lubricate outer tie rod ends 2500/3500 (4X4). X X
Inspect drive belt, replace as required. X
Replace fuel filter element. X
Inspect brake linings. X
Inspect and adjust parking brake if necessary. X
Change rear axle fluid. X
Change front axle fluid (4X4). X
456 SCHEDULE “B”
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Page 458 of 496
Miles 60,000 63,750 67,500 71,250 75,000
(Kilometers) (96 000) (102 000) (108 000) (114 000) (120 000)
Change 6-spd manual transmission (G-56) fluid
2500/3500. X
Inspect brake linings. X X
Inspect and adjust parking brake if necessary. X X
Drain and refill transfer case fluid (4X4). X
Drain and refill automatic transmission fluid and
change main sump filter (545 RFE only). X
Drain and refill automatic transmission fluid. Re-
place filter and adjust bands (48RE only). X
458 SCHEDULE “B”
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Page 459 of 496
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. X X
Lubricate Front Drive Shaft Fitting (2500/3500, 4X4). X X X X X
Rotate tires. X X
Check spare tire for proper pressure and correct stowage. X X
Lubricate outer tie rod ends 2500/3500 (4X4) models. X X
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
Replace fuel filter element. 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 (48RE only). X
SCHEDULE “B” 459
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