Chevrolet 1973 Overhaul Manual page 27

3-6 FRONT AXLE DIFFERENTIAL
O ld P in io n
M a rk in g
- 4
+ 4 + 0.008
+ 3 + 0.007
+ 2 + 0.006
+ 1 + 0.005
+ 0.004
0
- 1 + 0.003
- 2 + 0.002
- 3 + 0.001
- 4 0
2. Install inner shim pack and oil slinger in inner cup
bore and drive inner cup into position using Tool
J-21059 used with J-8092.
3. To the outer shim pack (for setting preload) add or
remove an equal amount as was added or removed
from the inner shim pack.
4. Install outer cup in carrier bore, using installer
J-7818 with Drive Handle J-8092.
5. Press inner pinion bearing cone and roller onto
pinion shaft using Installer J-9772 on arbor press as
shown in Figure 9.
6
Install drive pinion and inner bearing cone and
.
roller assembly in differential carrier.
Install shims and outer pinion cone and roller on
7.
pinion shaft using Tool J-5590 and companion
flange to press bearing onto pinion (Fig. 10).
Install flange holding bar and install washer and
8
.
nut on pinion shaft. Torque nut to 255 ft. lbs.
9.
Remove holding bar and with an inch pound torque
Fig. 9—Installing Inner Pinion Cone and Roller
CHEVROLET OVERHAUL MANUAL
- 1
- 3 - 2
+ 0.007 + 0.006 + 0.005
+ 0.005 + 0.004
+ 0.006
+ 0.004
+ 0.005 + 0.003
+ 0.004 + 0.003 + 0.002
+ 0.003 + 0.002 + 0.001
+ 0.001 0
+ 0.002
+ 0.001 0 - 0.001
0 - 0.001 - 0.002
- 0.001 - 0.002 - 0.003
Fig. 8 — D rive P in ion S h im C h a rt
New
P in io n M a rk in g
0 + 1
+ 0.004
+ 0.003
+ 0.003 + 0.002
+ 0.002 + 0.001
+ 0.001 0
0 - 0.001
- 0.001 - 0.002
- 0.002 - 0.003
- 0.004
- 0.003
- 0.004 - 0.005
J -5 5 9 0
Fig. 10—In sta llin g P inion Flange
wrench measure rotating torque. Rotating torque
should be 10 to 20 in. lbs. with original bearings or
20 to 40 in. lb. with new bearings.
NOTE: Torque reading to start shaft turning
must be disregarded.
10. If torque requirements (preload) are not to
specifications, adjust shim pack as necessary.
Increase the outer shim pack to reduce rotation
torque. Decrease shim pack to increase rotating
torque.
11. Remove nut, washer and flange from pinion shaft.
12. Install oil slinger, gasket and using Tool J-22804
install oil seal.
+ 2 + 3 + 4
+ 0.002
+ 0.001 0
+ 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
- 0.004 - 0.005 - 0.006
- 0.005 - 0.007
- 0.006
- 0.007 - 0.008
- 0.006