brake pads replacement CHEVROLET CAMARO 1967 1.G Chassis Workshop Manual
[x] Cancel search | Manufacturer: CHEVROLET, Model Year: 1967, Model line: CAMARO, Model: CHEVROLET CAMARO 1967 1.GPages: 659, PDF Size: 114.24 MB
Page 216 of 659
REAR SUSPENSION
AND
DRIVE LINE
4-26
DRIVE LINE
REAR AXIE
INDEX
Page
General
Description
4-26
Chevrolet,
Camaro,
Chevelle
and
Chevy
II 4-26
Corvette
4-26
Maintenance
and
Adjustments
4-27
Lubricant
4.37
Lubricant'
Leaks
4_27
Axle Bolts
and
Wheel
Nuts
4-27
Rear Axle Noise
Diagnosis
4-29
Gear Noise
4_29
Bearing
Noise
4-29
Failure
Analysis
4^9
Hypoid
Gears
4..3Q
Differential Gears. 4_30
Bearings
....'.
4.30
Component Parts Replacement
(Chevrolet, Chevelle, Camaro and Chevy n ..... 4.30
Axle Assembly ,. . 4_30
Removal 4 30
Installation * ' 4 3Q
Axle Shaft . . . 4-31
Removal 4-31
Wheel Bolt Replacement 4-31
Oil Seal and/or Bearing Replacement. 4-31
Brake Flange Plate Replacement 4-31
Installation 4-32
Pinion Flange, Dust Deflector and/or
Oil Seal Replacement 4-32
Component Parts Replacement (Corvette) 4-34
Axle Driveshaft .- 4-34
Removal 4-34
Repairs 4-34
Installation. . 4-34
Pinion Flange, Dust Deflector and/or Oil Seal. .... 4-35
Removal 4-35
Inspection . 4-35
Installation .- 4-35
Differential Carrier 4-36
Removal 4-36
Installation 4-36
Positraction Differential Unit-On the Vehicle Check . . 4-37
\
GENERAL DESCRIPTION
CHEVROLET, CHEVELLE, CHEVY
I! AND
CAMARO
The rear axle
(fig. 72) is a
semifloating, fabricated
construction type consisting
of a
cast carrier with large
bosses
on
each
end
into which
two
welded steel tubes
are fitted.
The
carrier contains
an
overhung hypoid
pinion
and
ring gear.
The
differential
is a
two pinion
arrangement.
The axle housing
is
made up
of
two steel welded tubes
pressed into
the
crossbore
of the
cast carrier
-
each
tube
is
puddle welded
at
three places
to the
carrier.
Welded-on brackets provide attachment points
for
Chevelle springs,; shock absorbers,
and
lower control
arms.
Chevrolet models have welded-on brackets
for
control arms,
tie
rod, and shock absorbers. The housing
on Chevy II and Camaro has welded brackets
for
mounting
lower spring
pad
and shock absorber.
A
welded flange
is
provided
for
brake flange plate attachment.
The overhung hypoid drive pinion
is
supported
by
two
preloaded tapered roller bearings.
The
pinion shaft
is
sealed
by
means
of a
molded, spring loaded, rubber seal.
The seal
is
mounted
on the
pinion shaft flange which
is
splined and bolted
to
the hypoid pinion shaft.
The hypoid ring gear
is
bolted
to a
one-piece differen-
tial case which
is
supported
by two
preloaded tapered
roller bearings.
CORVETTE
The Corvette rear axle
is of the
type where
the dif-
ferential carrier housing enclosing
the
differential
and
hypoid gears
is
supported
on a
crossmember mounted
to
the chassis frame.
The
differential
is
connected through
universal joints
to the
drive shafts
and
wheels
(fig. 73).
The internal components
of the
carrier
are of
conven-
tional design, incorporating
a
hypoid gear
set
with
an
overhung pinion supported
on two
pre-loaded, tapered
roller bearing assemblies,
and a
two-pinion differential
assembly supported
on
tapered roller bearings. Pinion
mounting distance adjustments
are
made through the
use
of shims,
as are the
differential bearing pre-load
and
backlash adjustments.
The
differential side gears drive
two splined yokes which
are
retained laterally
by
snap
rings located on the yoke splined end. The yokes
are
sup-
ported on caged needle bearings pressed into
the
carrier,
adjacent
to the
differential bearings.
A
lip seal, pressed
in outboard
of
the bearings, prevents
oil
leakage and dirt
entry.
The
carrier cover
is
bolted
to the
carrier and
provides accessibility
to the
internal parts.
The
cover
incorporates two integral, reinforced mounting pads which
serve
as the
carrier attaching point
to the
suspension
crossmember,
and an
attaching point
for the
spring
center section. The filler plug
is
located on the right side
of the cover near the bolting flange.
All service operations allow carrier removal without
removing
the
carrier cover. Cover removal
is
not nec-
essary
in any of the
service procedures except
in
the
case
of
complete carrier housing replacement,
as the
carrier and cover
are
serviced
as
an assembly.
CHEVROLET CHASSIS SERVICE MANUAL
Page 220 of 659
REAR SUSPENSION AND DRIVE LINE 4-30
Fig.
76—Differential Gear Failure
Hypoid Gears
Hypoid gear tooth scoring (fig. 74) is caused generally
by improper break-in, incorrect lube, insufficient gear
backlash or improper 'ring/pinion gear alignment. The
scoring will progressively lead to complete erosion of
the gear tooth, or gear tooth pitting and eventual fracture
with possible attendant damage to bearings, if the initial
scoring condition is not diagnosed in time and corrected.
Hypoid gear scoring is easily recognized by its char-
acteristic loud whine in either drive, coast or under both
conditions. Another cause of hypoid tooth fracture (fig.
75) is extended overloading of the gear set which will
produce fatigue fracture, or shock loading which will
result in sudden failure.
Differential Gears
Common causes of differential gear failure are shock
loading, extended overloading leading to fatigue failure,
and overheating of gear thrust surfaces resulting from
excessive wheel spin and consequent lubrication break-
down. Overheating will lead to seizing of thrust surfaces
or tooth failure (fig. 76).
Bearings
• Failure of axle tapered roller bearings is due pri-
marily to excessive wear caused by long service or
foreign materials in the oil. The second most common
cause of bearing failure is too tight or too loose pre-
load adjustment leading to spalling and eventual failure.
This failure may also lead to hypoid gear scoring due to
the resultant misalignment of the hypoid gear set.
COMPONENT PARTS REPLACEMENT
(Chevrolet, Cheveile, Chevy II and Camaro)
AXLE ASSEMBLY
Removal
1.
Raise vehicle to a height that will permit axle as-
sembly to hang freely and position supports under
both frame side rails.
2.
Disconnect wheel cylinder inlet lines. Disconnect and
remove brake hose and brake line retaining bracket
by removing retaining bolt from carrier cover.
3.
Loosen parking brake equalizer adjusting nut and
disconnect both rear cables at frame bracket and at
control arms. See Section 5 for detail of parking
brake cable removal.
4.
Remove two trunnion bearing "U" bolts from the
rear yoke and separate rear universal joint. Wire
propeller shaft to frame side rail and tape trunnion
bearing cups.
5. Support arid secure axle assembly with an adjustable
lifting device. On Chevrolet and Cheveile models,
loosen upper and lower control arm attaching bolts
at axle housing. (On Chevrolet models, disconnect
tie rod at axle bracket.)
6. Disconnect shock absorbers at axle brackets. Refer
to Shock Absorber Removal procedures outlined in
this section.
7. On Chevrolet and Cheveile models, lower axle as-
sembly until suspension reaches end of travel, then
disconnect spring retainers and withdraw springs
from vehicle.
8. On Chevy II and Camaro models, remove four nuts
securing lower spring seat to axle housing, then
remove spring front eye bolts or spring attaching
bracket and swing spring to rear so that it does not
interfere with axle.
9. On Chevrolet and Cheveile models, disconnect upper
and lower control arm attaching bolts at axle housing*
10.
Lower axle assembly and remove from under vehicle.
Installation
1.
Place axle assembly under vehicle and raise into
position.
2.
On Chevrolet and Cheveile models, install, but do not
tighten, upper and lower control arm attaching bolts
at axle housing.
3.
On Chevrolet models, position coil springs in upper
seats so that end of spring is indexed in seat.
4.
On Chevrolet models, install lower end of spring on
axle bracket or control arm and secure by installing
retainer and bolt. Install lock washer and retainer
nut.
5. On Cheveile pry lower pigtail of spring over vertical
flange of the axle bracket spring seat.
6. On Chevy II and Camaro models, install spring seat
pads and swing springs up into spring seats on axle
housing, making sure upper seat pads are aligned in
axle housing bracket.
7. Install spring front eye bolt and tighten, then install
spring seat lower mounting bracket and retaining
nuts.
8. Raise axle assembly to allow shock absorber and tie
rod installation. Position shock absorber in axle
bracket. Torque nut as outlined in Shock Absorber
Installation procedures.
9. Install brake hose and brake line retaining bracket
to carrier and connect wheel cylinder inlet lines.
Connect parking brake cable to frame bracket and
at control arm. Adjust parking brake and bleed
brakes as outlined in Section 5.
10.
Reassemble rear universal joint to companion flange.
11.
Support vehicle at axle and remove supports from
beneath the frame side rails.
12.
Remove supports and lower vehicle to floor. Torque
all affected parts to specifications.
CHEVROLET CHASSIS SERVICE MANUAL