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differential. Rear axle fluid level should be 1/4Љ (6.35mm)
below filler plug hole for 8 1/4Љ axles and should be 5/8Љ
(16mm) below filler plug for 9 1/4Љ axles.
Front Axle
Front Axle fluid level should be at the bottom of the fill
plug.
Selection of Lubricating Grease
The National Lubricating Grease Institute (NLGI) has
developed a symbol (Certification Mark) to aid the
vehicle owner in the proper selection of grease for chassis
components. This symbol, an example shown below, is
located on the grease container and identifies the appli-
cation and quality of the grease.
There are two groups
identified, those for wheel
bearings (Letter “G”) and
those for chassis (Letter
“L”) lubrication. Perfor-
mance categories within
these groups result in dual
letter designations for
each group. The letter des-
ignations shown in the ex-
ample are the highest
quality level available and when combined as shown can
be used for chassis lubrication. Use only those greases
that have the NLGI symbol on the container along with
the proper quality level for your application.
324 MAINTAINING YOUR VEHICLE