Chrysler RAM TRUCK 2500 1994 Service Manual page 125

3 - 1 8 REAR SUSPENSION AND AXLE
•
Fig. 20 Gauge Block
(3) Tighten the nut to seat the pinion bearings i n
the housing. Allow the sleeve to turn several times
during the tightening to prevent brinelling the bear­
ing cups or the bearings.
D e p t h shim(s) are positioned between the p i n ­
i o n
g e a r
rear b e a r i n g a n d
p i n i o n
gear to pro­
v i d e
the
s e p a r a t i o n
distance. The r e q u i r e d
thickness o f the depth s h i m ( s ) i s d e t e r m i n e d ac­
c o r d i n g to t h e f o l l o w i n g i n f o r m a t i o n .
(4) Loosen the compression nut tool. Lubricate the
pinion gear front and rear bearings with gear lubri­
cant. Re-tighten the compression nut tool to 1-3 N-m
(15-25 in. lbs.) torque. Rotate the pinion gear several
complete revolutions to align the bearing rollers.
• Install Gauge Block SP-6020 at the end of SP-526
• Install Cap Screw (SP-536) and tighten with
Wrench SP-531 (Fig. 20).
(5) Position Crossbore Arbor SP-6018 i n the differ­
ential housing.
(6) Center the tool and place a piece of 0.002 inch
shim stock at each end of the arbor. Position the
bearing caps on the arbor tool. Install the attaching
bolts. Tighten the cap bolts to 14 N-m (10 ft. lbs.)
torque.
(7) Trial fit depth shim(s) between the crossbore
arbor and gauge block (Fig. 21). The d e p t h shim(s)
fit must be snug b u t n o t t i g h t (drag f r i c t i o n o f a
feeler gauge blade).
Fig. 21 Depth Shim(s) Selection
D e p t h shims are available i n 0.001-inch incre­
ments f r o m 0.020 i n c h to 0.038 i n c h .
PINION
GEAR
DEPTH
VARIANCE
Original Pinion
Gear Depth
Variance
Replacement Pinion Gear Depth Variance
Original Pinion
Gear Depth
Variance
- 4
- 3
- 2
- 1
0
+ |
+2
•+3 +4
+4
+ 0.008 + 0.007 + 0.006 + 0.005 + 0.004 + 0.003 + 0.002
+ 0.001 0
+ 3 + 0.007 + 0.006 + 0.005 +0.004 + 0.003 + 0.002 + 0.001 0
-0.001
+2
+ 0.006 + 0.005
+ 0.004
+ 0.003
+ 0.002 + 0.001 0
-0.001
-0.0)2
+ 1 + 0.005 + 0.004 + 0.003 + 0.002 + 0.001 0 -0.001
- 0 . 0 0 2
-0.003
0
+ 0.004
+ 0.003
+ 0.002 + 0.001 0 -0.001 -0.002
-0.003 " - 0 . 0 ) 4
- 1 + 0.003 + 0.002 + 0.001 0
-0.001 -0.002 -0.003 -0.004
-0,005
- 2 + 0.002 + 0.001 0 -0.001 -0.002 -0.003
- 0 . 0 0 4
-0.005
- 0 . 0 0 6
- 3
+ 0.001 0
-0.001 -0.002 -0.003 -0.004 -0.005 -0.006 -0.007
- 4
0 -0.001 -0.002 -0.003
-0.004
-0.005 -0.006 -0.007
-0.008
J8902-46