Rear Axles for this vehicle consist of the following components:
|     •  | Differential Axle Housing  | 
 
|     •  | Right and left Axle tubes  | 
 
|     •  | Right and left axle shafts  | 
 
These axles are either Full-Floating or Semi-Floating.
These axles can be identified as follows: The Semi-Floating   Axle has
 axle shafts with C-Clips inside the differential carrier on the   inner
ends  of the axle shafts. The Full-Floating Axle has bolts  at  the
hub retaining  the axle shafts to the hub assembly. The axles can  be identified
 by the stamping  on the right side axle tube They may also  be identified
by  the ring gear size. The ring gear sizes include 8.60, 9.50, 10.50  and
11.50  inch axles. The locking  differential information for these rear  axles
can  be located in the locking  differential section.
A open differential has a set of four gears. Two are side gears and
two are pinion gears. Some differentials have more than two pinion  gears.
  Each side gear is splined to an axle shaft so each axle shaft ; so  each
 axle  shaft turns when it's side gear rotates. The pinion gears are mounted
  on  a differential pinion shaft, and the gears are free to rotate on this
 shaft.   The pinion shaft is fitted into a bore in the differential case
and  is at   right angles to the axle shafts. Power is transmitted through
the  differential   as follows: the drive pinion rotates the ring gear. The
ring  gear being bolted   to the differential case, rotates  the case, The
differential  pinion, as  it  rotates the case, forces the pinion gears against
the side  gears. When  both  wheels have equal traction, the pinion gears
do not rotate  on the pinion  shaft  because of input force on the pinion
gear is equally  divided between  the two  side gears. Therefore, the pinion
gears revolve  with the pinion shaft,  but  do not rotate around the shaft
itself. The side  gears, being splined  to the  axle shafts and in mesh with
the pinion gears  rotate the axle shafts.  If a  vehicle were always driven
in a straight line,  the ring and pinion gears  would  be sufficient. The
axle shaft could be solidly  attached to the ring  gear and  both driving
wheels would turn at equal speed.  However, if it became  necessary  to turn
a corner, the tires would scuff  and slide because the differential   allows
the axle shafts to rotate at different  speeds. When the vehicle turns   a
corner, the inner wheel turns slower than  the out wheel and slows it's  rear
 axle side gear (as the shaft is splined  to the side gear). the rear  axle
pinion  gears will roll around the slowed  rear axle side gear, driving  the
rear axle  side gear wheel faster.