Chevrolet 70 1969 Series, Руководство по ремонту

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REAR SUSPENSION 4D-53
be necessary to remove the interaxle shaft. Ro­
tate the rear pinion yoke on the forward rear axle
into a vertical position. Clean the four machined
ends of the yoke of dirt, nicks, and burrs. Place
the protractor across ends of the yoke on either
side in as close as possible to a vertical position
as shown in figure 7 and read the angle. Pinion
angle should be the same -
as the engine and aux­
iliary transmission angles. Adjustment can be
made, if necessary, on some vehicles by adjusting
the adjustable upper torque rod. On other vehicles
adjustment can be made, if necessary, by using
shims at upper torque rod mountings.
8 . Clean machined surface of yoke on the in­
ter-axle propeller shaft and check the shaft angle
in same manner described in step 5a.
9. Check rearward rear axle pinion angle as
described in step 6 and shown in View F, figure 6,
on rear axles which have a machined surface on
the differential carrier housing. On rear axles not
having a machined surface on the differential car­
rier housing, check rearward rear axle pinion
angle as described in step 7 and shown in figure 7.
IM P O R T A N T : The rear axle pinion must be
adjusted up or down by means of the adjustable
torque rod on vehicles having adjustable torque
rods, or by shims on vehicles not having adjust­
able torque rods, until the resultant angle of the
forward axle pinion angle, subtracted from the
inter-axle shaft angle, is equal to the resultant
angle of the inter-axle shaft angle subtracted from
the rear axle pinion angle. Refer to figure 8 for
location of shims, or to figure 9 for vehicles using
adjustable torque rods.
Example: Forward axle pinion angle = 3°.
Inter-axle shaft angle = 6°.
Rear axle pinion angle = 9 °.
Forward axle pinion angle (3°) subtracted
from interaxle shaft angle (6°) equals 3°.
Inter-axle shaft angle (6°) subtracted from
rear axle pinion angle (9 ) equals 3°.
S P E C IF IC A T IO N S
UNIVERSAL JOINT APPLICATIONS
The following tabulation lists Universal Jo in ts used with Standard Equipm ent only.
Refer to Parts Book for Universal Jo in ts used with Optional Equipment.
T R U C K S E R I E S
A T
T R A N S M I S S I O N
A T
F R O N T C E N T E R
B E A R I N G
( W H E N U S E D )
A T
R E A R C E N T E R
B E A R I N G
( W H E N U S E D )
A T
R E A R A X L E
I N T E R A X L E S H A F T
F R O N T R E A R
HV 70
58 W B 58 WB
_
58 W B
_ _
JV 70
58 W B 58 WB
_
58 W B 58 W B 58 WB
HM 80 1480 1480 1480
1480
— —
JM 80
58 W B 58 W B
—
58 W B
58 W B 58 W B
T M 80 1480 1480 —
1480 — —
UNIVERSAL JOINT SPECIFICATIONS
N O . O F
J O I N T
J O U R N A L N E E D L E S
D I A M E T E R L E N G T H
S E R I E S D I A M E T E R P E R
O F O F
B E A R I N G
N E E D L E S
N E E D L E S
1480 0.8942"-0.8947" 33 0.0936"-0.0938"
0.78125"
58 WB 1.0621"-1.0625" 39 0.0928"-0.0930" 0.819"-0.839"
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L