Dodge 2008 Ram 2500 PowerWagon - Manual (Page 434)

Rear Axle And 4x4 Front Driving Axle Fluid Level
Refer to Fluids, Lubricants and Genuine Parts for the
correct Fluid type. For normal service, periodic fluid level
checks are not required. When the vehicle is serviced for
other reasons the exterior surfaces of the axle assembly
should be inspected. If gear oil leakage is suspected
inspect the fluid level.
This inspection should be made with the vehicle in a level
position. The fluid level should be even with the bottom
of the fill hole for the Manufacturer’s C205F HD Front
Axles. The fluid level should be 5/8” (16 mm) below on
9 1/4” Manufacturer’s Rear Axles.
For all 2500 Model axles, the fluid level should be 1/4” ±
1/4” (6.4 mm ± 6.4 mm) below the fill hole on the 9.25”
Front and 3/4”± 1/4” (19 mm ± 6.4 mm) on 10.5” Rear
axles.
Drain and Refill
Follow the Maintenance Schedule for recommended
front and rear axle fluid change intervals.
Lubricant Selection
Refer to Fluids, Lubricants and Genuine Parts for correct
fluid type.
NOTE: The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Limited-Slip Differentials
Power Wagon Axles DO NOT REQUIRE any limited slip
oil additive (friction modifiers).
434 MAINTAINING YOUR VEHICLE