Chevrolet 70 1969 Series, Руководство по ремонту

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REAR SUSPENSION 4B-35
T A N D E M U N IT R E M O V A L
1. Block wheels on both axles and disconnect
brake lines from axles.
2. Disconnect propeller shaft from forward
rear axle as explained in "P R O P E L L E R S H A F T S "
(SEC. 4D).
3. Support frame securely and remove bolts
which attach pedestal to cross tube or frame.
4. Measure length of rear adjustable torque
rod from center of ball stud seat at one end to
center of ball stud seat at the other end to insure
same dimension at installation. At each axle end,
remove nut from torque rod end stud and drive
end stud out of axle bracket using a soft hammer.
5. Check to make sure all lines have been
disconnected from axle, then using a suitable hoist,
raise rear end of frame and roll axles, with rocker
arms and springs, out from under frame.
T A N D E M U N IT IN S T A L L A T IO N
1. Roll axles and wheels, with rocker arms
and springs attached, in position under frame.
2. Lower frame as required to align pedestal
with cross tube or frame and install pedestal to
cross tube or frame bolts and tighten to torque
listed in "Specifications" at end of this section.
3. Install torque rods to axle bracket.
N O T E : When tightening torque rod stud nuts,
rap bracket with hammer to drive taper of torque
rod stud into bracket. Tighten nut to torque listed
in "Specifications" at end of this section.
4. Connect brake lines to each axle assembly,
then connect propeller shaft and check drive line
alignment as covered in "P R O P E L L E R S H A F T S "
(SEC. 4D).
SPRING REPLACEMENT
SPRING R E M O V A L (Fig. 17)
1. Raise vehicle frame to remove load from
spring. Support frame securely.
2. Remove cross tube to spring cap U-bolt
nuts and remove spring cap from spring.
3. Remove nuts from insulator cap to rocker
arm U-bolts, then remove insulator cap and in­
sulator (inset, fig. 18).
4. Lift spring assembly up to remove from
rocker arm.
SPRING IN S T A L L A T IO N (Fig. 17)
N O T E : Before installing spring assembly in
vehicle, inspect rubber insulator and spring cam
for excessive wear or damage. Replace compon­
ents if worn or damaged.
1 Rearward Rear Axle
2 Rear Torque Rod
3 Front Torque Rod
4 Pedestal Spacer
5 Frame
6 Forward Rear Axle
7 Pedestal
8 Spring
9 U-bolt
10 Insulator Cap
11 Spring U-bolt
12 Bolt
13 Compression Cap
14 Rocker Arm
15 Spring Cap
t -
2
S
8
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Figure 18— Page and Page ILWH1 Rear Suspension Installed (Typical)
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK SH O P M A N U A L