driveshaft BMW 328i 1995 E36 User Guide

240-
4



AUTOMATIC
TRANSMISSION

TRANSMISSION
REMOVALAND

INSTALLATION

Removal
and
installation
of
thetransmission
is
best
accom-

plished
on
a
lift
using
a
transmission
jack
.
Use
caution
and

safe
workshop
practices
when
working
beneath
car
and
low-

ering
transmission
.

WARNING
-

To
lift
the
vehicle
safely,
see010
Fundamentals
for
the
Do-it-Yourself
Owner
.

CAUTION-

"
Be
sure
the
vehicle
is
properly
supported
.
The
removal
of
the
transmission
may
upset
the
bal-
ance
of
the
vehicle
on
a
lift
.

"
Tilting
the
engine
to
remove
the
transmission
can
lead
to
damage
to
various
components
due
to

lack
of
clearance
.
-On
carswith
AST
remove
throttle
body
.
-Remove
brake
fluid
reservoir
if
necessary
.

Torx-head
bolts
are
used
to
mount
thetransmission
to
the

bellhousing
.
Be
sure
to
have
appropriate
tools
on
hand
before

starting
thejob
.

2
.
Install
engine
support
across
engine
bay
.
Raise
and

safely
support
vehicle
.
See
Fig
.
6
.

WARNING
-
"
When
raising
thecar
using
a
floor
jack
or
a
hy-
draulic
lift,
carefully
position
the
jack
pad
to
pre-
vent
damaging
the
car
body
.
A
suitable
liner
(wood,
rubber,
etc
.)
should
be
placed
between
the
jack
and
the
car
to
prevent
body
damage
.

"
Watch
the
jack
closely
.
Make
sure
it
stays
stable
and
does
not
shift
or
tilt
.
As
the
car
is
raised,
the
car
may
roll
slightty
and
the
jack
may
shift
.

CAUTION-

Removal
of
transmission
will
cause
engine
to
tip
unlessengine
support
is
used
.

TRANSMISSION
REMOVAL
AND
INSTALLATION

Fig
.
6
.
Engine
support
equipment
used
to
support
engine
from
above

before
removing
transmission
.

3
.
Raise
vehicle
to
gain
access
to
underside
of
car
.

4
.
Drain
ATF
from
transmission
as
described
earlier
.

5
.
Disconnect
oxygen
sensor
harness
.
Remove
exhaust

system,
and
exhaust
heat
shield
.
See
180
Exhaust

System
.

Transmission,
removing
and
installing



6
.
Remove
driveshaft
.
See
260
Driveshaft
.

1
.
Disconnect
negative
(-)
cable
from
battery
.



7
.
With
selector
lever
in
Park,
disconnect
shift
selector
le-

ver
cable
from
lever
and
remove
cable
bracket
.
Hold

CA
UTION-



linkage
clamping
bolt
stationary
when
loosening

Prior
to
disconnectiog
the
battery,
read
the
battery



clamping
nut
.
See
Fig
.
7
.

disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.

Fig
.
7
.



Selector
lever
cable
clamping
nut
(A)
.
Loosen
cable
clamping
nut
(B)
and
remove
cable
from
bracket
.
Always
counterholdclamping
bolt
when
loosening
nut
.

GENERAL
.
.
.
.
.
.
.
.
.
................
.
.
.
250-1



AUTOMATIC
TRANSMISSION
GEARSHIFT
...
.
.........
.
.
.
.
.
.
.
.
.
.
.
.
.
.
250-3
MANUAL
TRANSMISSION



Gearshift
mechanism,
adjusting
GEARSHIFT
.
.
.
.
.
.
.
.....
.
..........
.
.
.
250-1



(automatictransmission)
..
.
.
.
.
.
.
.
.
.
...
.
.
250-3

Gearshift
lever,
removing



Gear
position/neutral
safety
switch,
replacing
(manual
transmission)
.
.
.
.
...
.
.
.
.......
250-1



(automatic
transmission)
..
.
.
.
.........
.
.
250-4

Gearshift
lever,
installing



Automatic
shiftlock,
checking
function
(manual
transmission)
.
.
.
.
.
.
.
.
.
.
.......
250-2



(automatic
transmission)
..
..
...
.
.
.
....
..
250-5

Shiftinterlock,
checking
function

(automatic
transmission)
.......
.
.
.
.....
.250-6

GENERAL

This
repair
group
covers
transmission
gearshift
and
linkage
service
.

Special
service
tools
are
required
for
some
of
the
proce-

dures
given
here
.
To
gain
access
to
the
complete
gearshift

mechanism
ít
is
necessary
to
remove
the
exhaust
system
and
the
driveshaft
as
described
in
180
Exhaust
System
and260
Driveshaft
.

MANUAL
TRANSMISSION
GEARSHIFT

Gearshift
lever,
removing

(manual
transmission)

The
manual
transmission
gearshift
linkage
is
shown
in
Fig
.1
.
Use
thisillustration
asaguide
when
removing
and
installing

the
linkage
.

1
.
Pull
straight
upon
shift
knob
lo
remove
it
from
shift
lever
.

NOTE
-

Removal
of
the
shift
knob
will
require
about
90
lbs
.
of
force
.

2
.
Pry
upon
rear
of
shift
boot
tounclip,
then
remove
boot
from
front
retainers
.

3
.
Raise
vehicle
togain
access
to
underside
of
vehicle
.

WARNING
-

Make
sure
thecar
is
stable
and
well
supported
at
afl
times
.
Use
a
professional
automotive
lift
orjackstands
designed
for
the
purpose
.
A
floor
jack
is
not

adequate
support
.

250
Gearshift
Linkage

GEARSHIFT
LINKAGE



250-1

Fig
.1
.



Manual
transmission
gearshift
linkage
.

4
.
Disconnect
oxygen
sensorharness
connectors
.
Re-

move
completeexhaust
system
.
See
180
Exhaust

System
.

MANUAL
TRANSMISSION
GEARSHIFT

250-2



GEARSHIFT
LINKAGE

5
.
Remove
driveshaft
.
See260
Driveshaft
.



9
.
Release
gearshift
lever
retaining
ring
from
below
by

turningspecial
tool
90°(
1
/4
turn)
counterclockwise
.
See

6
.
Support
transmission
with
transmission
jack
.
Remove



Fig
.
4
.

crossmember
from
rear
of
transmission
.
See
Fig
.
2
.

Fig
.
2
.



Rear
transmission
crossmember
(arrow)
.

7
.
Lower
rear
of
transmission
to
access
gearshift
linkage
.

CAUTION-

Tilting
the
engine
to
lower
thetransmission
can
lead
to
damage
to
various
componente
due
to
lackof
clearance
.
-On
cars
with
AST
remove
throttle
body
.
-Remove
brake
fluid
reservoir
if
necessary
.

0013135

8
.
Working
below
transmission,
disconnect
shift
rod
from

gearshift
lever
.
Note
washers
on
either
side
of
shift
rod

end
.
See
Fig
.
3
.

v

clip

Shift
rod

Fig
.
3
.



Pull
off
shift
rod
retaining
clip
in
direction
of
arrow
(t)
;
disen-
gage
shift
rod
from
gearshift
lever
(2)
.

MANUAL
TRANSMISSION
GEARSHIFT

BMW
Tool
No
.
25
1
110
orequivalent

Fig
.
4
.



Shift
lever
retaining
ring
being
removed
using
BMW
special

tool
25
1
110
.

10
.
Raise
transmission
and
temporarily
instan
transmission

crossmember
.

11
.
Lower
vehicle
.
Working
from
inside
passengercom-

partment,
pull
upon
gearshift
lever
to
remove
it
togeth-

erwith
retaining
ring
and
rubber
grommet
.

Gearshift
lever,
installing

(manual
transmission)

6532

1
.
Instan
shift
lever,
aligninglocking
tabs
with
openings
in

shift
console
.
Press
down
on
retaining
ring
until
it
clicks
into
place
.
See
Fig
.
5
.

\
Retaining

Fig
.
5
.



Shift
lever
retaining
ring
.
Fit
plastic
tabs
into
slots
of
shift
con-
sole(arrows)
.

2
.
Install
rubber
grommet
with
arrow
pointing
forward
.
In-



AUTOMATic
TRANSMISSION
stall
shift
rod
and
shift
boot
.



GEARSHIFT

NOTE-

Install
rubbergrommet
correctly
so
that
is
seals
outwa-
ter
.

4
.
Install
driveshaft
and
heat
shield
.
See
260
Driveshaft
.

Manual
valveleven
(at
transmission)

Fig
.
6
.



Automatic
transmission
gearshift
assembfy
.

Shift
cable

GEARSHIFT
LINKAGE



250-
3

The
automatic
transmission
shift
mechanism
is
shown
in
Fig
.
6
.
Use
the
illustration
as
a
guide
when
servícing
the
gear-
shift
mechanism,
including
shift
cable
replacement
.

3
.
Connect
shift
rod
to
shift
lever
.
Install
transmission

crossmember
.
Lift
transmission
and
tighten
crossmem-



Gearshift
mechanism,
adjusting
ber
bolts
.



(automatictransmission)

NOTE-



1
.
Position
selector
lever
in
Park
.

Beforeconnecting
the
shift
rod
to
the
lever,
be
sure
the



2
.
Raise
vehicle
to
gain
access
to
shift
linkage
.
gearshift
leven
is
facing
the
correct
way
as
illustrated
in
Fig
.
1
.
WARNING
-

Make
sure
thecan
is
stable
and
well
supported
at
all
times
.
Use
a
professional
automotive
lift
or
jack
stands
designed
for
the
purpose
.
5
.
Reinstall
exhaust
system
.
See
180
Exhaust
System
.
Connect
oxygen
sensor
harness
connectors
.



3
.
Loosen
selector
cable
clamping
nut
.
See
Fig
.
7
.

6
.
Lower
vehicle
.
Insta¡¡
shift
boot
cover
.
Push
shift
knob



4
.
Push
shift
lever
forwardtoward
engine(Park
position)
onto
lever
.



while
applying
light
pressure
on
cable
end
.
Tighten
ca-
ble
clamping
nut
.

Tightening
Torques



NOTE-
"
Driveshaft
to
final
drive



Do
not
overtighten
the
nut
so
that
it
twists
the
cable
.
flange
(with
U-joint)
.
..
.
.....
.
.
See
250
Driveshaft

"
Flex-disc
to
driveshaft
or

transmission
flange
...
.
.......
See
250
Driveshaft



Tightening
Torque
"
Transmission
crossmember



"
Shift
cable
clamping
nut
.......
10-12
Nm
(75-9
ft-Ib)
to
body
(M8)
.
.
.
...
..............
21
Nm
(16
ft-Ib)

/S
r\
1
1

Gear
position/
neutral
safetyswitch

Automatic
shilo
solenoid
id

AUTOMATIC
TRANSMISSION
GEARSHIFT

DRIVESHAFT
SERVICE
.
...
.
.
.
...
.
..
.
.
.260-3

Driveshaft,
aligning
...............
.
...
.
.
260-3

Driveshaft,
removing
..............
.
.
.
.
.
.
260-4

260
Driveshaft

DRIVESHAFT
260-1

GENERAL
.
.
.
.
.
.
.
.....
.
.
.
........
.
...
.
260-1



Driveshaft,
installing
.
....
.
..
.
............
260-4

Flex-disc,
replacing
.....
.
.
.
.............
260-5
TROUBLESHOOTING
..
.
.
.
...
.
.........
260-1



Center
bearing
assembly,
replacing
.
......
.260-6
Frontcentering
guide,
replacing
..
.
.......
.
260-7

TABLE

a
.
Driveshaft
Troubleshooting
.
.
...
......
.
....
..
.
.
260-2

GENERAL



NOTE-

For
rear
drive
axlerepair
information,
see330
Rear
The
two-piece
driveshaft
is
joined
in
thecenter
by
a
sliding



Suspension
.
splined
coupling
.
This
coupling
compensates
for
fore
and
aft
movement
of
the
drive
line
.
The
driveshaft
ís
connected
to
the



Driveshaft
noise
or
vibration
may
be
caused
by
worn
or
transmission
bya
rubber
flex-disc
and
to
the
final
drive
by
a



damaged
components
.
Check
the
universal
joints
for
play
.
universal
joint
.
It
is
supported
in
the
micidle
by
a
center
support



With
the
driveshaft
installed,
pull
and
twist
the
driveshaft
while
bearing
.
The
bearing
is
mounted
in
rubber
to
isolate
vibration
.



watching
the
joint
.
The
BMW
specificationfor
play
is
very
See
Fig
.
1
.



small,
so
almost
any
noticeableplay
could
indicate
a
problem
.

TROU
BLESHOOTING



Check
thetorque
of
thefasteners
at
the
flange
connections
.
Check
therubber
of
the
flex-disc
and
center
bearing
for
dete

The
source
of
driveline
vibrations
and
noise
can
be
difficult



rioration
or
tearíng
and
check
for
preload
at
the
center
bearing

to
pinpoint
.
Engine,
transmission,
rear
axle,
or
wheel
vibra-



with
a
visual
inspection
.
Check
the
driveshaft
for
broken
or

tions
can
be
transmitted
through
the
driveshaft
to
the
car



missing
balance
weights
.
The
weights
are
welded
tabs
on
the

body
.
Noises
from
the
rear
of
thecar
may
be
caused
by
final



driveshaft
tubes
.
In
addition
to
inspecting
for
faulty
driveshaft

drive
problems,
orby
faulty
wheel
bearings,
drive
axies,
or



parts,
the
installed
angles
of
the
driveshaft
should
also
be

evenworn
or
improperly
inflatedtires
.



considered
.

Flex-disc

Center
universal
joint

Fig
.1
.



Driveshaft
and
final
drive
assembly
.

Rear
section
Splined
shaft



of
driveshaft
Center
support



`



Clamping
sleeve
bearíng
assembly

Differential
inputflange

0013110

TROUBLESHOOTING

260-2
DRIVESHAFT

Further
inspection
requires
removal
of
the
driveshaft
.

Check
the
front
centering
guide
on
the
transmission
output
flange
for
damage
or
misalignment
.
Also
check
runoutatthe

transmission
outputflange
and
output
shaft,
and
at
the
final

drive
input
flange
.
Check
the
bolt
hole
bores
in
theflange
for

wear
and
elongation
.

Driveshaftflange
runout
(max
.
allowable)

"
Transmission
outputflange

axial
play
...
.
..
...
..
.
.......
0
.10
mm
(0
.004
in
.)

radial
play
.......
...
.
.
.......
0
.07
mm
(0
.003
in
.)

"
Final
driveinput
flange
radial
play
(measured
at

driveshaft
centering
lip)
..
......
0
.07
mm
(0
.003
in
.)

Spinthe
center
bearing
and
check
for
the
smooth
operation

without
play
.
Check
that
thesplines
of
the
sliding
coupling

move
freely
.
Clean
and
lubricate
the
splines
with
molybdenum

disulfide
grease
(Molykote
®
Longterm
2
or
equivalent)
.

Check
the
universal
joints
for
wear
or
binding
.
If
any
joint
isdif-

ficult
to
move
or
binds,
the
driveshaft
section
should
be
replaced
.

Table
a
.
Driveshaft
Troubleshooting

NOTE-

With
the
driveshaft
installed,
theactual
amount
that
the
universal
joints
pivot
is
limited
.
For
the
most
accurate

test,
check
universal
joints
in
their
normal
range
of

movement
.

If
inspection
revealsnothing
wrong
with
the
driveshaft,
it

may
need
to
be
rebalanced
.
This
can
be
done
by
a
speciality

driveshaft
repair
shop
.
Also,
check
the
alignment
ofthe
drive-

shaft
as
described
below
.

NOTE-

Minor
driveshaftvibrations
can
often
be
correctedsim-

ply
by
disconnecting
the
driveshaftat
the
finaldrive,

and
repositíoning
the
driveshaft
90°,
180°
or270°
inre-
lationto
the
final
drive
input
flange
.

Table
a
lists
symptoms
of
driveshaft
problems
and
their

probable
causes
.
Most
of
the
repair
information
is
contained

within
this
repair
group
.

Symptom



Probable
cause



Corrective
action

1
.
Vibration
when



a
.
Incorrect
preload
of
center
bearing
.



a
.
Check
preload
of
center
bearing
.
Readjust
preload
.
See
Fig
.
6
.

starting
off
(forward



b
.
Center
bearing
rubber
deteriorated
.



b
.
Inspect
center
bearing
and
rubber
.
Replace
if
necessary
.
orreverse)
.



c
.



Flex-disc
damaged
or
worn
.



c
.



Inspect
flex-disc
.
Replace
if
necessary
.

TROUBLESHOOTING

d
.
Engine
or
transmission
mounts
faulty
.
I
d
.
Inspect
engine
and
transmission
mounts
.
Align
or
replace,
if
nec-

essary
.

e
.
Front
centering
guide
worn,
or



e
.
Check
front
centering
guide
and
replace
if
necessary
.
Check

driveshaft
mounting
flanges
out
of



runout
of
driveshaft
flanges
.

round
.

f
.



Universal
joints
worn
or
seized
.



f
.



Check
universal
joint
play
and
movement
.
Replace
driveshaft
if

necessary
.

g
.
Sliding
coupling
seized
.



g
.
Remove
driveshaft
and
check
movement
of
sliding
coupling
.

Clean
coupling
splines
and
replace
parts
asnecessary
.

h
.
Driveshaft
misaligned
.



h
.
Check
driveshaft
alignment
.

2
.
Noise
during
on/off



a
.
Finaldrive
components
worn
or



a
.
Remove
final
drive
and
repair
.

throttle
or
when



damaged
(excessive
pinion-to-ring-

engagíng
clutch
.



gear
clearance)
.

b
.



Drive
axleor
CV
joint
faulty
.



b
.



Inspect
drive
axles
and
CV
joints
.
Repair
or
replace
as
neces-
sary
.

c
.
Sliding
coupling
seized
.



c
.
Remove
driveshaft
and
check
movement
of
sliding
coupling
.

Clean
coupling
splines
and
replace
parts
as
necessary
.

3
.
Vibration
at
25
to
30



a
.
Front
centering
guideworn,
or



a
.
Check
front
centering
guide
and
replace
if
necessary
.
Check
mph
(40
to
50



driveshaft
mounting
flanges
out
of



runout
of
driveshaft
mounting
flanges
.
km/h
).



round
or
damaged
.

b
.
Universal
joints
worn
or
seized
.



b
.
Check
universal
joint
play
and
movement
.
Replace
driveshaft
if
necessary
.

c
.



Flex-disc
damaged
or
worn
.



c
.



Inspect
flex-disc
.
Replace
if
necessary
.

d
.
Center
bearing
rubber
deteriorated
.



d
.
Inspect
center
bearing
.
Replace
if
necessary
.

e
.
Sliding
coupling
seized
.



e
.
Remove
driveshaft
and
check
movement
of
sliding
coupling
.
Clean
coupling
splines
and
replace
parts
asnecessary
.

f
.



Misaligned
installed
position
.



f
.



Check
driveshaft
alignment
.

Symptom



1



Probable
cause

4
.
Vibration,
audible



a
.
Front
centering
guide
worn,
or



a
.
Check
front
centering
guide
and
replace
if
necessary
.
Check
rumble
over35
mph



driveshaft
mounting
flanges
out
of



runout
of
driveshaft
mounting
flanges
.
(60
km/h)
.



round
or
damaged
.

b
.
Mounting
flange
bolts
loose
or
holes



b
.
Remove
driveshaft
and
check
transmissionoutput
flange
and
worn
.



final
drive
input
flange
.
Replace
if
necessary
.
c
.
Driveshaft
unbalanced
.



c
.
Check
driveshaft
for
loose
or
missing
balance
weights
.
Have
driveshaft
rebalanced
or
replace
if
necessary
.

DRIVESHAFT
SERVICE

Driveshaft,
aligning

d
.
Universal
joints
worn
or
seized
.



d
.
Check
universal
joint
play
and
movement
.
Replace
driveshaft
if
necessary
.

e
.
Sliding
coupling
seized
.



e
.
Remove
driveshaft
and
check
movement
of
sliding
coupling
.
1



Clean
coupling
splines
or
replace
parts
asnecessary
.

f
.



Incorrect
preload
of
center
bearing
.



f
.



Check
preload
of
center
bearing
.
Readjust
if
necessary
.
g
.
Center
bearing
faulty
.



g
.



Replace
center
bearing
.

h
.
Final
drive
rubber
mount
faulty



h
.
Inspect
final
drive
rubber
mount
and
replace
if
necessary
.i.



Driveshaft
misaligned
.



i.



Check
driveshaft
alignment
.

Repair
kits
for
the
universal
joints
are
not
available,
and
it
is
not
common
practice
to
repair
the
universal
joints
on
BMW
driveshafts
.
Worn
or
damaged
universal
joints
usually
require
replacement
of
that
section
of
the
driveshaft
.

The
driveshaft
is
balanced
to
cose
tolerances
.
Whenever
it
is
to
be
removed
or
disassembied,
the
mounting
flanges
and
driveshaft
sections
should
bemarked
with
paint
or
a
punch

before
proceeding
with
work
.
This
will
ensure
that
the
drive-
shaft
can
be
reassembled
or
installed
in
exactlythe
same
ori-
entation
.

Universal
joint
play

"
Maximum
allowable
...........
0.15
mm
(0.006
in
.)

The
alignment
of
the
driveshaft
does
not
normally
need
to
be
checked
unless
the
engine/transmission
orthe
final
drive
havebeen
removed
and
installed
.
If,
however,
all
other
parts
of
the
driveshaft
havebeen
inspected
and
found
to
be
okay,
butthere
is
still
noise
or
vibration,
driveshaft
alignment
should

be
checked
.

There
aretwo
important
driveshaft
alignment
checks
.
The
first
is
to
make
sure
that
the
driveshaft
runs
straight
from
the
transmission
to
the
final
drive
;
without
any
variation
from
side-

to-side
caused
by
misalignment
ofthe
engine/transmission
in
its
mounts
.
Make
a
basic
check
by
sighting
along
the
drive-

shaft
from
back
lo
front
.
Any
misalignmentshould
be
apparent
from
the
center
bearingforward
.
To
adjustthe
side-to-side
alignment,
loosen
the
transmission
or
engine
mounts
to
repo-

sition
them,
then
retighten
the
mounts
:
The
driveshaft
should

be
exactly
centered
in
the
driveshaft
tunnel
.
See
Fig
.
2
.

Table
a
.
Driveshaft
Troubleshooting
(continued)

DRIVESHAFT
260-3

Corrective
action

b
:izó
Fig
.
2
.



Driveshaft
side-to-side
alignment
.
Driveshaft
should
be
cen-
tered
in
driveshaft
tunnel
.

The
second
important
driveshaft
alignment
check
is
more
complicated
.
It
checks
the
amount
the
driveshaft
is
angled
vertically
at
the
joints
.
This
angle
is
known
as
driveshaft
de-
flection
.

In
general,
there
should
be
little
deflection
in
the
driveshaft
between
the
engine,
thecenter
bearing,
and
the
final
drive
.
Precise
checks
require
theuse
of
a
large
protractor
or
some
other
means
of
measuring
the
angle
of
the
engine
and
the
fi-

nal
drive
and
comparing
these
angles
to
the
angle
of
the
drive-

shaft
sections
.

To
change
the
deflection
angle,
shims
can
be
placed
between
the
center
bearing
and
the
body
or
between
the
transmission

and
íts
rear
support
.
When
using
shims
to
change
a
deflection

angle,
keep
in
mind
that
the
angle
of
adjacent
joints
will
also
change
.
Deflection
anglesshould
beas
small
as
possible
.

DRIVESHAFTSERVICE

260-
4
DRIVESHAFT

CAUTION
-

The
maximum
allowable
change
in
height
of
the

center
bearing
or
transmission
support
using

shims
is
3
mm
(0
.12
in
.)
.

Driveshaft,
removing

WARNING
-

"
Be
sure
the
wheels
are
off
the
ground
before
re-

moving
the
driveshaft
.
Set
the
parking
brake
be-

fore
removing
the
driveshaft
.

"
Once
the
driveshaft
has
been
removed,
the
vehi-
cle
can
roll
regardless
of
whether
the
transmis-
sion
isin
gear
or
not
.

"
The
driveshaft
fs
mounted
to
thetransmission
and
final
drive
with
self-locking
nuts
.
These
nuts

are
designed
to
be
used
only
once
and
should
be

replaced
during
reassembly
.

1.
Disconnect
oxygen
sensor
electrical
connectors
and
remove
complete
exhaustsystem
.
See
180
Exhaust

System
.

4
.
Remove
driveshaft
mounting
bolts
.
See
Fig
.
3
.
Discard

old
nuts
.

JG

Fig
.
3
.



Front
driveshaft
totransmission
mounting
bolt
being
re-
moved
.
Note
open-end
wrench
(arrow)
being
used
to
coun-
terhold
bolt
.

5
.
Loosen
threaded
clamping
sleeve
on
driveshaft
a
few
tucos
.
See
Fig
.
4
.

DRIVESHAFT
SERVICE

Fig
.
4
.



Threaded
clamping
sleeve
nut
being
loosened
.

0012037

6
.
Support
driveshaft
andremove
center
support
bearing

mounting
bolts
.

7
.
Remove
driveshaft
but
do
not
separate
two
halves
.
Pull

down
on
center
of
driveshaft
to
facilitate
removal
.

2
.
Remove
exhaust
heat
shield
and
heat
shieldcross-

member
.



NOTE-

If
driveshaft
halves
were
separate
and
not
match-

3
.
Matchmark
front
and
rear
driveshaft
connections
at



marked,
assemble
driveshaft
as
shown
in
drawing
.
If
a

transmissíon
and
final
drive
.



vibration
occurs,
disassemble
driveshaftand
rotate
one

section
180°
.
See
Fig
.
5
.

Driveshaft,
installing

Fig
.
5
.



Driveshaft
alignment
.
Centerlinesof
universal
joints
(arrows)

must
be
parallel
or
at
90°
to
each
other

1
.
Align
driveshaft
matchmarks
at
final
drive
and
then
at

transmission
flange
.
Start
attaching
nuts
.
Use
new
self-

locking
nuts
.

2
.
Position
center
support
bearing
and
start
attaching

nuts
.
Use
new
self-locking
nuts
.

3
.
Tighten
flangenuts
while
preventing
bolts
from
twisting

in
coupling
.
Tighten
final
drive
flange
first,
then
tighten

coupling
at
transmission
.

4
.
Preload
center
support
bearing
by
pushing
bearing
for-
ward4-6
mm
(0
.16-0
.24
in
.)
from
center
.
See
Fig
.
6
.
Tighten
attaching
bolts
.

Fig
.
6
.



Preload
center
bearing
toward
front
4-6
mm
(arrow)
.

5331
5
.
Tightenthreadedsleeveondriveshafttopropertorque
.

6
.
Insta¡¡
heat
shield
and
heat
shield
crossmember
.

Tightening
Torques

"
Driveshaftcenter
mount
to
body
.
.
..
21
Nm
(16
ft-Ib)

"
Driveshaft
clamping
sleeve
.....
.
.
.
10
Nm
(89
in-lb)

"
Driveshaft
to
final
drive
flange

With
CV
joint
(M8)
............
...
32
Nm
(23
ft-Ib)

Wth
U-joint
(M10
ribbed
nut)
....
...
80
Nm
(59
ft-Ib)

With
U-joint
(M10
compressed
nut)
..
60
Nm
(44
ft-Ib)

"
Flex-disc
to
driveshaft
or
transmissionflange

M10
(8.8
grade)
.........
.
....
..
.
48
Nm
(35
ft-Ib)

M10
(10
.9
grade)
........
.
....
...
64
Nm
(47
ft-Ib)

M12
(8.8
grade)
........
.....
..
.
.
81
Nm
(60
ft-Ib)

M12
(10
.9
grade)
.
.
....
......
...
100
Nm
(74
ft-Ib)

M12
(10
.9
grade)
(M3
models)
..
.
.
.
115
Nm
(85
ft-Ib)

"
Transmission
crossmember

to
body
(M8)
.
....
...........
....
21
Nm
(16
ft-Ib)

NOTE-

Bolt
grade
is
markedon
the
bolt
head
.
When
replacing
bolts,
only
use
bolts
of
the
same
strength
and
hardnessas
the
originalsinstalled
.

Flex-disc,
replacing

The
flex-disc
between
the
front
section
of
the
driveshaft
and

theoutputflange
of
the
transmission
should
be
checked
for

cracks,
tears,
missing
pieces,
or
distortion
.
Check
for
worn
bolt
hole
bores
in
theflange
.

1
.
Remove
driveshaft
as
described
in
Driveshaft,
remov-
ing
.

NOTE-

¡t
is
possible
to
only
partially
remove
the
driveshaft,
leaving
it
connected
to
the
final
drive
.
The
driveshaft
canbe
tilted
down
in
thecenter
and
slidoff
the
trans-
mission
flange
once
the
clamping
sleeve
is
loosened
and
the
center
bearing
bracket
is
unbolted
.
Suspend
the
driveshaft
using
stiff
wire
in
as
close
to
the
installed
position
as
possible
.
If
the
driveshaft
hangs
unsupport-
ed,
the
rear
universal
joint
may
be
damaged
.

2
.
Unbolt
flex-dísc
from
driveshaft
.

DRIVESHAFT
260-
5

7
.
Install
exhaust
system
.
See
180
Exhaust
System
.

Connect
wiring
harness
to
oxygen
sensors
.



NOTE-

Removaland
installation
of
the
boltsmaybe
made
eas-
8
.
Road
test
vehicle
to
check
for
noiseor
vibration
.



ier
by
placing
a
large
hose
clamp
around
the
flex-disc,
and
tightening
the
clamp
slightlyto
compress
the
cou

WARNING
-



pling
.

"
Do
not
reuse
self-locking
nuts
.
These
nuts
aredesigned
to
beused
only
once
.



3
.
Insta¡¡
new
flex-disc
using
new
self-locking
nuts
.
Mold-

"
Avóid
stressing
the
flex-disc
when
torquing
the



ed
arrows
on
coupling
should
face
flange
arms
.
See

bolts
Do
this



holding
the
bolts



Fig
.
7
.
steady
and
.



uy
turning
the
nuts
on
theflange
side
.

5
:132

Fig
.
7
.



When
attaching
flex-disc,
molded
arrows
must
point
toward

flange
arms
.

DRIVESHAFT
SERVICE

260-
6
DRIVESHAFT

4
.
Insta¡¡
driveshaft
as
described
in
Driveshaft,
install-

ing
.

Tightening
Torques

"
Driveshaft
center
mount
to
body
.
...
21
Nm
(16
ft-Ib)

"
Driveshaft
clamping
sleeve
.....
...
10
Nm
(89
in-lb)

"
Driveshaft
to
final
drive
flange

With
CV
joint
(M8)
............
...
32
Nm
(23
ft-Ib)

Wth
U-joint
(M10
ribbed
nut)
......
.
80
Nm
(59
ft-Ib)

With
U-joint
(M10
compressed
nut)
.
.
60
Nm
(44
ft-Ib)

"
Flex-disc
to
driveshaft
or
transmission
flange

M10
(8
.8
grade)
.
...
.............
48
Nm
(35
ft-Ib)

M10
(10
.9
grade
.
...
.............
64
Nm
(47
ft-Ib)

M12
(8
.8
grade)
..
..
.............
81
Nm
(60
ft-Ib)

M12
(10
.9
grade)
.
..
............
100
Nm
(74
ft-Ib)

M12
(10
.9
grade)
(M3
models)
.....
115
Nm
(85
ft-Ib)

"
Transmission
crossmember

to
body
(M8)
......
...
.
..
........
21
Nm
(16
ft-Ib)

5
.
Remove
center
bearing
circlip
and
dust
guard
.
See
Fig
.

Center
bearing
assembly,
replacing



10
.
Remove
bearing
from
driveshaft
using
puller
.

To
replace
thecenter
bearing
assembly,
the
driveshaft

must
be
removed
from
thecar
.
The
center
bearing
assembly

consists
of
a
grooved
ball
bearing
in
a
rubber
mount
.
The

bearing
assembly
is
pressed
onto
the
front
section
of
the

driveshaft
and
securedby
a
circlip
.
See
Fig
.
8
.

Circlip

NOTE
-

Torque
only
the
nuts
while
holding
the
bolt
heads
.
Thís
will
prevent
damaging
or
fatiguing
the
rubber
.

Dust
cap

Fig
.
8
.



Exploded
view
of
driveshaft
support
bearing
assembly
.

1
.
Remove
driveshaft
.
See
Driveshaft,
removing
.

DRIVESHAFT
SERVICE

0012594

5333

Fig
.
9
.



Before
pulling
apart
driveshaft
sections,
make
matching
marks
as
shown
.

4
.
Inspect
condition
of
rubber
bushing
for
splined
cou-

pling
.
Replace
worn
or
damaged
parts
.

2
.
Make
matching
marks
on
front
and
rear
driveshaft
sec-



NOTE-

tions
.
See
Fig
.
9
.



Install
puller
so
that
it
pulls
on
inner
hub
of
bearing
.
Pulling
on
outer
ring
of
mount
may
tear
rubber,
and
en

3
.
Loosen
clamping
sleeve
fully
and
pull
driveshaft
sec-



tire
bearing
assembly
will
need
to
be
replaced
.

tions
apart
.
Remove
rubber
bushing,
washer,
and
clamping
sleeve
from
front
section
.

5334

Fig
.
10
.
Center
bearing
circlip
(arrow)
to
be
removed
.
Driveshafl
shown
installed
.