Chevrolet 10 Series 1967, Service Manual

Page: 173 / 605

REAR SUSPENSION AND DRIVE LINE 4-15
IMPORTANT: The top pad set screws must be
tightened to specified torque to properly seat
spring against machined face of saddle before
tightening top pad to saddle bolts.
4. Tighten top pad to saddle bolts to 290 ft. lbs. torque;
hold nuts at bottom while using torque wrench on bolt
heads at top.
5. Install spring eye pin through hanger and spring eye,
with slot in pin aligned with lock bolt holes in hanger.
Use a soft hammer to drive pin in from outer side.
Install spring eye pin lock bolt, washer and nut and
tighten firmly. Install lubrication fitting in inner end
of pin.
6
. Install rebound bolt and spacer in lower end of rear
hanger and install lock nut. Lubricate spring ends
as directed in Section O of this manual. Remove
support from under vehicle frame.
EQUALIZING BEAMS
Removal
1. Support frame so springs are lifted just enough to
remove weight of equalizing beam from beam-to-axle
hanger adapters.
2. Remove nut from beam-to-axle adapter bolt and re­
move bolt and adapter by prying adapter at head of
bolt out of hanger (See Figure 35), then pry out oppo­
site adapter. Repeat this operation at other end of
beam and at both ends of opposite beam.
3. Support equalizing beams and cross tube to take
weight off center bushings. Remove nuts from four
studs securing spring saddle caps to bottom of spring
saddle (two caps at each beam). Remove caps from
studs.
CAUTION: Keep cross tube level so beams do
not slide off tube.
4. Lower the beams and tube from vehicle and pull
beams off tube.
Repairs
A D A P T E R
F ig . 35 - Adapter and Retaining Bolt at A x le Bracket
Fig . 36. - Equalizing Beam Details
1. Bolt 5. Nut
2. Adapter 6. C enter Bushing
3. End Bushing 7. Washer
4. Equalizing Beam
Bushing Replacement
End and center bushings may be removed and new
bushings installed using suitable tools.
Installation
Refer to Figure 36.
1. Apply an anti-rust lubricant to inside of beam center
bushing, insert end of cross tube in bushing and push
tube into bottom of sleeve.
2. Apply an anti-rust lubricant to inside surface of the
center bushing in other beam and slide onto cross
tube until tube bottoms in bushing sleeve.
CAUTION:
Be_ sure cross tube is all the way
into both bushing sleeves and, while beams are
on the cross tube, keep cross tube level so
beams do not slide off the tube.
3. Position the assembly under vehicle and move the
beams outboard on cross tube just far enough so
beam ends are in line with axle hangers and center
bushings are in line with spring saddles.
4. Support cross tube securely on suitable lift and raise
tube and beams so ends enter hangers and center
bushings enter saddles.
5. Install saddle caps on studs and install nuts.
6
. Line up beam end in axle hanger bracket, install
adapter and bolt in one side of hanger and install
second adapter and nut on end of bolt.
7. Repeat step
6
at other end of beam and at both ends
of opposite beam.
8
. Position vehicle so suspension supports weight and
tighten all nuts to specifications.
CHEVROLET TRUCK SERVICE M ANUAL