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61. The
axle shaft U washer is simply pushed out using two fingers.
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62. We will now pull the
axles out of the differential case. Be careful not to
damage the axle shaft O-rings. |
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With
the axles pulled back out of the carrier, the first item
to do is check our running torque on the pinion. We do
this by using an inch pound torque wrench. (This is best
done using a dial type torque wrench). We will be looking
for how much force it takes to turn the differential pinion.
We will use this later during reassembly to set our bearing
preload with a new crush sleeve. |
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63. Place the torque wrench
on the pinion nut and turn the pinion taking note how
many inch pounds it requires to make the pinion turn (not
how much force it takes to break the pinion into movement;
but how much it takes during the turn). We will make note
of this for later reference when we set our preload on
our new pinion bearings.
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64. Next we want to mark
our carrier bearing caps. We did this by using a center
punch and a series of dots to identify the bearing cap
side and direction. You can mark them any way you wish.
The important thing to achieve is that the bearing caps
go back on the same side and same direction they came
off. The bolts can go back in any position or side. |
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65. To do this we placed
two dots on one bearing caps center to show side, and
a third dot on the end of the bearing cap to show direction.
We also did this on the differential housing. On the other
side of the carrier we repeated this but only using one
dot in the center and one on the end, along with the corresponding
dots on the housing.
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66. Once marked we will
break the torque off and remove the bearing cap bolts. |
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67. Once the bolts have
been removed we will remove the bearing caps. |
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68. With carrier bearing
caps removed we can now remove the carrier from the housing. |
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We
used a crowbar and a screwdriver to pry the carrier loose
from the housing. We placed a piece of wood between the
tools and the housing to avoid damage to the machined
surface of the housing. The carrier bearings are seated
very tightly in the bearing saddles of the housing. These
are close tolerance machined saddles. Be careful to not
damage any part of the carrier or housing. It will take
a little elbow grease to pry the carrier up. Then it will
let go rather suddenly so be prepared. When it lets go,
the bearing cups will be free to come off the bearings
also. You must keep the cups with the bearing cones as
they are a matched set. If you plan (as we did) to replace
the bearings then this is not a concern. Also, when the
carrier bearings come free you must take note of the shims
between the bearings and the outside of the bearings.
These must be noted as to what side they are on and keep
them together (if more than one on each side) so we can
use them later in our initial setup with the new ring
gear and pinion. |
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69. Using a crowbar and
a screwdriver to pry the carrier loose from the housing.
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70. Here we now have the
carrier removed from the housing. |
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71. Here is the shim from
one side of the carrier. There will be one or more on
both sides of the carrier outside of the bearings. Do
not mix them up as to side or thickness. |
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72. Here is the housing
with the carrier removed showing the pinion in place.
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Now
we need to remove the pinion. We do this by holding the
pinion flange and using an impact wrench to remove the
pinion nut. We held the pinion flange by putting two new
bolts (do not use your original flange bolts) in the flange
and placing a wrecking bar between them to keep the pinion
and flange from turning. We then put the impact wrench
on the pinion nut and drove the pinion nut loose. The
pinion nut is on with a lot of torque, upwards of 200+
foot pounds so it will take a good 1/2 inch drive impact
wrench or a very long breaker bar to back this off. We
suggest using an impact wrench of 500 ft/lbs or more torque.
It will make very easy work of removing the pinion nut. |
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73. Wrecking bar in place
between two new bolts. |
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74. Here it shows us using
the impact wrench and the wrecking bar to remove the pinion
nut. |
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75. Now we need to remove
the pinion flange. We used a standard two bolt puller
to do this. The pinion flange pulls off fairly easy using
the puller. |
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76. Pinion flange removed. |
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77. Next is the removal
of the pinion seal. Place the old pinion nut finger tight
on the pinion to protect the threads. Using a screwdriver
lightly tap from the edge of the seal to bend enough of
the seal edge out to grab with a pair of vise grips |
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78. Clamp the vise grips
on the seal edge and hammer on the vise grips to remove
the seal from the housing.The seal will come out rather
easily. |
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79. With the seal removed
we can reach into the housing and pull off the oil slinger
washer and set it aside. |
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80. Next we put the old
pinion nut back on and lightly tap on the pinion shaft
to unseat the pinion bearings. Be careful not to hit too
hard as when the bearings unseat the pinion will fly into
the housing. |
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81. We can now reach into
the housing and remove the front pinion bearing cone.
Pinion bearings must be replaced with the new pinion.
The inner pinion bearing is pressed on the pinion shaft
and will be removed with the pinion.
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82. We now remove the pinion
and inner bearing from the housing. The crush sleeve will
be on the shaft, so take care not to drop it in the housing. |
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83. The pinion with bearing
cone and crush sleeve. |
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84. We can now remove the
crush seal. This will be discarded as we will replace
the sleeve on final installation. |
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85. We will now clean the
housing with parts cleaner. |
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86. Now we must remove the
pinion bearings front and inner bearing cups. This is
done by using a punch to drive the cups from the housing.
They will come out fairly easily and you must take care
to not damage the housing. |
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87. Here we are removing
the inner bearing cup from the housing. |
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88. Inner bearing cup removed. |
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89. Here we are removing
the front bearing cup from housing. |
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90. We then remove any sealer
from the housing face. |