Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 130 / 468

4B-58
OVERHAUL MANUAL
O ld Pinion
M arking
New Pinion M arking
- 4 - 3 - 2 - 1 0 + 1 + 2 + 3 + 4
+ 4 + 0 .0 0 8 + 0.007
+ 0 .0 0 6
+ 0 .0 0 5 + 0.004 + 0 .0 0 3 + 0.002 + 0.001 0
+ 3
+ 0 .007
+ 0 .0 0 6
+ 0 .0 0 5 + 0 .004 + 0 .003 + 0.002 + 0.001 0 - 0.001
+ 2 + 0 .0 0 6 + 0 .005 + 0 .0 0 4 + 0 .0 0 3 + 0.002 + 0.001 0 - 0.001 - 0.002
+ 1 + 0 .0 0 5 + 0 .004 + 0 .003 + 0.002 + 0.001 0 - 0.001 - 0.002 - 0 .003
0 + 0 .0 0 4 + 0 .003 + 0 .002 + 0.001 0 - 0.001 - 0.002
- 0.003
- 0 .004
- 1 + 0 .0 0 3 + 0.002 + 0.001 0 - 0.001 - 0.002 - 0 .003 - 0.004 - 0 .005
- 2 + 0 .0 0 2
+ 0.001 0 - 0.001 - 0.002 - 0.003 - 0 .004 - 0.005 - 0 .006
- 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
Fig. 9F—Dana
Fig. 10F—Pinion Code Location
thickness o f the old shim pack to com pensate fo r the
difference o f these two figures.
F or exam ple: If the old p in io n read s ( + 2) and the new
p in io n is (—2), add .004" shim s to the o rig in al shim
pack.
DRIVE PINION
Assembly and Installation
1. D eterm in e the correct p in io n d ep th shim by using
the c h art in figure 9F.
2. Install the p in io n d ep th shim in re a r cup bore.
3. Install re a r b earin g cup by using d riv er h an d le
J-8092 and in staller J-24381.
4. To the o u ter shim pack (fo r settin g p relo ad ) add or
Pinion Code Chart
rem ove an equal am o u n t as w as ad d ed or rem oved
from the in n e r shim pack.
5. Install o u ter cup in c a rrie r bore, using installer
J-7818 w ith D rive H andle J-8092.
6. Press re a r p in io n b e a rin g o n to p in io n sh aft, using
installer J-24433.
7. Install drive p in io n and b e a rin g into the differential
carrier.
8. Install p relo ad shim s and fro n t p in io n b earin g . Do
not install oil seal at this tim e.
9. Install flange an d holding b a r J-8614-11 as shown
in "D riv e P in io n —R em o v al".
10. Install w asher and n u t o n to p in io n shaft. T orque
nut to 250 lbs. ft.
11. Rem ove holding b ar and w ith an inch p o u n d torque
w rench m easure ro ta tin g to rq u e. R o tatin g torque
should be 10 to 20 in. lbs. w ith o rig in al b earings or
20 to 40 in. lb. w ith new b earin g s.
N O TE: T orque re a d in g to s ta rt sh a ft tu rn in g
m ust be d isreg ard ed .
12. If torque req u irem en ts (p relo ad ) are not to
specifications, adjust shim pack as necessary.
a. To increase p reload, d ecrease the thickness o f
p reload shim s.
b. To decrease p relo ad , in crease the thickness o f
preload shim s.
13. W hen b earin g p relo ad m eets specifications, rem ove
nut, w asher and flange fro m p in io n sh aft.
14. Install new p in io n oil seal in to housing as shown in
* figure 1 IF, using J-24384.
15. Install flange, w asher an d nut. U sing h o ld er bar
J-8614-11, torque nut to 250 lbs. ft.