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REAR AXLES
REAR AXLES
3 - 1
C O N T E N T S
Page
8 3/8- AND 9 1/4-INCH DIAMETER RING GEAR
AXLE SERVICE
9
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . 1
MODEL 60, 60M AND 70 AXLE SERVICE . . . . 33
Page
8 3/8- and 9 1/4-Inch Diameter Ring Gear Axies
. . 1
8 3/8- AND 9 1/4-INCH DIAMETER RING GEAR
AXLES
The housing for rear axles w i t h a n 8 3/8- or a 9 1/
4-inch diameter r i n g gear consists o f a n i r o n center
casting (differential housing) w i t h axle shaft tubes
extending from either side. The axle shaft tubes are
pressed i n t o and welded to the differential housing t o
f o r m a one-piece axle housing.
The removable, stamped steel cover located a t t h e
rear o f the differential housing provides a means for
inspection and for differential service w i t h o u t remov-
i n g t h e complete rear axle from t h e vehicle.
B o t h axles have a hypoid gear differential and t h e
centerline of the drive p i n i o n gear shaft i s located be-
low t h e centerline of the r i n g gear.
A 9 1/4-inch diameter r i n g gear rear axle equipped
w i t h a S u r e - G r i p differential is optionally available
for R a m T r u c k a n d Ramcharger vehicles. A S u r e -
G r i p differential has a two-piece differential case
t h a t is completely interchangeable
w i t h a standard
differential case.
Page
NOISE DIAGNOSIS
2
REAR AXLE ALIGNMENT . . . . . . . . . . . . . . . . . . . 8
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . S6
TIRE/WHEEL BALANCE . . . . . . . . . . . . . . . . . . . . 8
Page
Model 60, 60M and 70 Axies
1
MODEL 60, 60M AND 70 AXLES
The housing for Model 60, 6 0 M a n d 70 rear axles
consists of a n i r o n center casting (differential hous-
ing) w i t h axle shaft tubes extending f r o m either side.
The axle shaft tubes are pressed i n t o and welded to
the differential housing t o f o r m a one-piece axle
housing. B o t h axles have a hypoid gear differential
and t h e centerline o f the drive p i n i o n gear shaft is
located below the centerline o f the r i n g gear. T h e re-
movable, stamped steel cover located a t t h e rear of
the differential housing provides a means for inspec-
t i o n and for differential service w i t h o u t removing the
complete rear axle from t h e vehicle.
A s m a l l , stamped m e t a l axle gear r a t i o identifica-
t i o n t a g is attached to t h e housing cover v i a one of
the cover bolts. This t a g also identifies the number of
r i n g gear and drive p i n i o n gear teeth.
Model 60, 6 0 M a n d 70 rear axles equipped w i t h a
T r a c - L o k
differential are optionally available for
R a m T r u c k vehicles. A T r a c - L o k differential has a
one-piece differential case, t h e same i n t e r n a l compo-
nents as a standard differential, plus t w o clutch disc
packs.
GENERAL INFORMATION
INDEX
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