Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 95 / 468

REAR AXLE DIFFERENTIAL
4B-23
in d icato r re a d in g . F o r exam ple, if in d icato r
re a d in g is .019, an d p in io n is m ark ed ( + 2), the
correct d ep th shim fo r in sta lla tio n will be .019
+ .002 = .021 inch.
b. If the p in io n has no plus ( + ) or m inus(—)
n u m b er, use the in d ic a to r re a d in g as the correct
shim thickness.
Fig. 21B—Gauging Tools In stalled in C a rrie r—
Passenger Car
deflection. At this p o in t, set the dial in d ic a to r to
zero. Tools will now be p o sitio n ed as show n in
figures 21B and 22B.
12. R ep eat the rocking action o f the p lu n g er several
tim es to verify the setting.
13. Once the zero re a d in g is o b ta in e d , swing the
p lu n g er until it is rem oved fro m the g au g in g plate
button.
T he dial in d icato r will now re a d the re q u ired p in io n
shim thickness fo r a " n o m in a l" p in io n . R ecord this
figure.
14. Check the re a r face o f the drive p in io n being
installed fo r a p inion code n u m b er. T his n u m b e r
indicates the necessary a lte ra tio n o f the p in io n
shim thickness as d e te rm in e d in step 13.
a. If the p inion is sta m p e d w ith a plus ( + )
n u m b er,
add
th a t m a n y th o u san d th s to the
c. If the p in io n is stam p ed w ith a m inus (—)
nu m b er,
subtract
th a t m an y th o u san d th s from
the in d ic a to r rea d in g . F o r exam ple, if the
in d ic ato r re a d in g is .031, a n d p in io n is m arked
(—3), the correct d ep th shim fo r in stallatio n will
be .031 — .003 = .028 inch.
15. Rem ove b e a rin g caps a n d d e p th g au g in g tools from
carrier.
16. Position the shim selected in step 14 on the p in io n
sh a ft ag a in st p in io n head.
17. L ubricate the re a r p in io n b e a rin g w ith liberal
am ounts o f hypoid lu b ric a n t an d install re a r
bearing. U se J-6547 as show n in figure 23B for
passenger car m odels. U se J-5590 fo r truck m odels,
as shown in figure 24B.
Installation and Adjustment
1. L ubricate the fro n t b earin g w ith lib e ra l am ounts o f
hypoid lu b rican t, an d place in to o u te r cup.
2.
For Passenger Car
place a new p in io n oil seal into
position in c a rrie r bore. T a p lightly w ith a
protective plate an d a h a m m e r until seal flange
seats ag ain st c a rrier, as show n in figure 25B.
3.
For Truck Models
po sitio n seal in bore an d place
gauge plate J-22804-2 over seal and ag ain st flange.
G au g e plate insures p ro p e r seating o f seal in
ca rrie r bore. See figure 26B. U se J-23911 to press
seal into bore until gauge p late is flush w ith the
J—21 777-45 DIAL
(LARGE STEP) INDICATOR
PROTECTIVE
TUBE OR PIPE
J - 6 5 4 7
Fig. 22B—Gauging Tools Installed in Carrier—Truck
Fig. 23B—Installing Rear Bearing—Passenger Car