Dodge 2000 DURANGO Service Manual page 142

3 - 92 8 1/4 AND 9 1/4 AXLE
ADJUSTMENTS (Continued)
Original Pinion
Gear Depth
Variance
+4 +0.008
+3 +0.007
+2 +0.006
+1 +0.005
0 +0.004
−1 +0.003
−2 +0.002
−3 +0.001
−4
Fig. 70 Pinion Gear Depth Gauge Tools
1 – DIAL INDICATOR
2 – ARBOR
3 – PINION HEIGHT BLOCK
4 – CONE
5 – SCREW
6 – PINION BLOCK
7 – SCOOTER BLOCK
8 – ARBOR DISC
(8) Slide the dial indicator probe across the gap
between the pinion height block and the arbor bar
with the scooter block against the pinion height block
(Fig. 73). When the dial probe contacts the arbor bar,
the dial pointer will turn clockwise. Bring dial
pointer back to zero against the arbor bar, do not
turn dial face. Continue moving the dial probe to the
crest of the arbor bar and record the highest reading.
PINION GEAR DEPTH VARIANCE
Replacement Pinion Gear Depth Variance
−4 −3 −2
+0.007 +0.006
+0.006 +0.005
+0.005 +0.004
+0.004 +0.003
+0.003 +0.002
+0.002 +0.001
+0.001 0
0 −0.001
0 −0.001 −0.002
−1 0
+0.005 +0.004 +0.003
+0.004 +0.003 +0.002
+0.003 +0.002 +0.001
+0.002 +0.001
+0.001 0 −0.001
0 −0.001 −0.002
−0.001 −0.002 −0.003
−0.002 −0.003 −0.004
−0.003 −0.004 −0.005
Fig. 71 Pinion Height Block
1 – PINION BLOCK
2 – PINION HEIGHT BLOCK
If the dial indicator can not achieve the zero reading,
the rear bearing cup or the pinion depth gauge set is
not installed correctly.
(9) Select a shim equal to the dial indicator read-
ing plus the drive pinion gear depth variance number
painted in the shaft of the pinion. For example, if the
depth variance is –2, add +0.002 in. to the dial indi-
cator reading.
9 1/4 AXLE PINION GEAR DEPTH
GENERAL INFORMATION
Ring gear and pinion are supplied as matched sets
only. The identifying numbers for the ring gear and
pinion are painted onto the pinion gear shaft and the
side of the ring gear. A plus (+) number, minus (–)
number or zero (0) along with the gear set sequence
number (01 to 99) is on each gear. This first number
+1 +2 +3
+0.002 +0.001
+0.001 0
0 −0.001
0 −0.001 −0.002
−0.002 −0.003
−0.003 −0.004
−0.004 −0.005
−0.005 −0.006
−0.006 −0.007
DN
+4
0
−0.001
−0.002
−0.003
−0.004
−0.005
−0.006
−0.007
−0.008