Page 377 of 659
CWTCH AND TRANSMISSIONS 7-18
LEVER (A)
BRACKET (B)
GAGE
5LOT(C)
ROD(J)
VIEW A
Fig.
2M - Four-Speed (Muncie) Transmission Gearshift Linkage Camaro & Corvette (Typical)
HANDLE
BUSHING
(3 REQ'D.)
KNOB
CABLE TUBING
CABLE ASSEMBLY
LEVER
LEVER ASSEMBLY
LUBE I.D. OF
LEVER WITH
20/30 WGT.
MOTOR OIL
ANTI RATTLE
"O"
RING
SET SCREW
COAT WITH
LUBRIPLATE
OR EQUIVALENT
.000/.020
Fig.
3M - Gearshift- Lever Assembly and Adjustment (Typical)
CHEVROLET CHASSIS SERVICE MANUAL
Page 378 of 659

CLUTCH AND TRANSMISSIONS 7-19
2.
With handle in full down position—adjust cable to ac-
quire dimension shown, be certain that cable is pulled
taut.
3.
Tighten set screw to 15-20 in. lbs.
4.
Bend excess wire and cut - be certain that wire does
not interfere with I.D. of lever or threads of shifter
knob.
NOTE: Handle must return freely from any
position.
SPEEDOMETER DRIVEN GEAR AND OIL SEAL
Replacement
Disconnect speedometer cable, remove retainer to
housing bolt and lock washer and remove retainer. In-
sert screw driver in slot in fitting and pry fitting, gear
and shaft from housing. Pry "O" ring in groove in fitting.
Install new "O" ring in groove and insert shaft Hold
the assembly so slot in fitting is toward boss on housing
and install in housing. Push fitting into housing until re-
tainer can be inserted in groove and install retainer lock
washer and bolt.
Fig.
5M - Installing Side Cover Assembly
TRANSMISSION SIDE COVER
Removal
1.
Disconnect control rods from levers.
2.
Shift transmission into second speed before removing
cover, by moving 1-2 (Rear Cover) shifter lever into
forward detent position.
3.
Remove cover assembly -from transmission case
carefully and allow oil to drain.
Disassembly (Fig. 4M)
1.
Remove the outer shifter lever nuts,*lock washers
and flat washers. Pull levers from shafts.
2.
Remove both shift forks from shifter shaft and detent
plate assemblies. Remove both shifter shaft assem-
blies from cover. Lip seals in side cover may now
be pryed out if replacement is required because of
damage.
1-2 DETENT CAM DETENT SPRING
3-4 DETENT CAM
1-2 SHIFTER SHAFT
1-2 SHIFT FORK
3-4 SHIFT
FORK
DETENT CAM \ 3-4 SHIFTER SHAFT
RETAINER RING
DETENT CAM PIVOT PIN
3.
Remove detent cam spring and pivot retainer "C"
ring. Remove both detent cams.
4.
Replace necessary parts.
Assembly (Fig. 4M)
1.
Install 1-2 detent cam to cover pivot pin first, then
install 3-4 detent cam so the detent spring notches
are offset or opposite each other. Detent cam
notches must be facing downward.
2.
Install detent cam retaining "C" ring to pivot shaft,
and hook spring into detent cam notches.
3.
Install both shifter shaft assemblies in cover being
careful not to damage lip seals. Install both shift
forks to detent plates, lifting up on detent cam to
allow forks to fully seat into position.
4.
Install outer shifter levers, flat washers, lock wash-
ers and nuts.
Installation (Fig. 5M)
1.
Shift 1-2 shifter lever into second speed (forward)
position. Position cover gasket on case.
2.
Carefully position side cover into place making sure
the shift forks are aligned with their respective
mainshaft clutch sliding sleeves.
3.
Install cover attaching bolts and tighten evenly to
15-20 ft. lbs. torque.
4.
Remove filler plug and add lubricant specified in
Section 0, to level of filler plug hole.
EXTENSION OIL SEAL
Replacement
1.
Remove propeller shaft.
2.
Pry out the extension oil seal.
3.
Prelubricate between sealing lips and press new oil
seal carefully into place in extension using J-5154 or
similar tool.
Fig.
4M - Transmission Side Cover/ Shift Fork and
Detent Assembly
CAUTION: Do not excessively force the seal
against the seat in the extension.
CHEVROLET CHASSIS SERVICE MANUAL
Page 379 of 659

CLUTCH
AND
TRANSMISSIONS
7-20
COMPONENT PARTS REPLACEMENT
3.
4.
5.
6.
TRANSMISSION REPLACEMENT
(EXC.
CORVETTE)
Removal From Vehicle
1.
Remove shift lever trim plate and dust boot.
Remove shift lever assembly.
Raise vehicle
to
desired working height.
Disconnect
the
speedometer cable from speedometer
driven gear fitting.
.
~
. •
Remove propeller shaft, then support engine
at the
oil
pan
rail with
a
jack
or
other suitable support
capable
of
supporting
the
engine when transmission
is removed.
Disconnect shift lever bracket assembly from exten-
sion
and
remove
all 3
transmission shifter levers
from shifter shafts, (leave linkage connected
to
levers)
and
remove bracket assembly levers
and
linkage.
Remove extension mount7 to-crossmember attaching
bolts.
Loosen transmission crossmember
and
move rear-
ward
or
remove.
Remove
the
transmission-to-clutch housing retaining
bolts
and
install two guide pins, J-1126,
in
top holes.
Slide
the
transmission straight back until
the
input
shaft
is
free
of
splines
in the
clutch disc.
Slide
the
transmission rearward
to
allow sufficient
clearance
of
input shaft
and
clutch housing. Then tilt
input shaft
end of
transmission downward and with-
8.
9.
10.
11.
draw transmission from vehicle.
installation
to
Vehicle
1.
Raise transmission
and
rotate
as
necessary-to start
input shaft into clutch disc
and
slide transmission
forward until
it
bottoms against clutch housing.
Re-
move guide pins.
2.
Install
the
transmission-to-clutch housing retaining
bolts.
Torque
all
four retaining bolts
to 50 ft. lbs.
3.
Raise engine
and
position extension mount
to
cross-
member,
and
loosely install
the
retaining bolts.
Tighten crossmember
to
frame retaining bolts.
4.
Remove temporary support from engine, and torque
the extension mount retaining bolts.
5. Install propeller shaft.
6. Install control lever bracket assembly
to
transmis-
sion extension
and
connect shifter levers
to
shifter
shafts.
7. Fill transmission
to
level
of
filler plug hole with
correct lubricant specified
in
Section
0.
8. Lower vehicle and install shift lever assembly, check
shift pattern and adjust linkage
as
required.
9. Install trim plate and dust boot.
CORVETTE TRANSMISSION REPLACEMENT
Refer
to
similar procedure under 3-Speed Corvette
Transmission.
FOUR-SPEED (SAGINAW) TRANSMISSION
INDEX
Page
General Description
7-20
Maintenance
and
Adjustments
. . 7-21
Shift Linkage Adjustment.
. 7-21
Speedometer Driven Gear
and
Oil Seal ................
(See
Muncie 4-Speed)
Side Cover
7-22
Page
Removal
. . , 7-22
Disassembly
. . 7-22
Assembly
. . . 7-22
Installation
. 7-22
Extension
Oil
Seal
(See
Muncie 4-Speed)
Transmission Replacement (See Muncie 4-Speed)
GENERAL DESCRIPTION
The Saginaw four speed fully synchronized
(all
forward
gears) transmission incorporates helical drive gears
throughout.
The main drive gear
is
supported
by a
ball bearing
at
the front
end of the
transmission case and
is
piloted
at its
front
end in an oil
impregnated bushing mounted
in the
engine crankshaft.
The
front
end of the
mainshaft
is
piloted
in a row of
roller bearings
set
into
the
hollow
end
of
the
main drive gear
and the
rear end
is
carried
by a
ball bearing mounted
in the
front
of the
extension housing.
The countergear
is
carried
on a
single
row of
rollers
at both ends while thrust
is
taken on thrust washers
lo-
cated between
the
ends
of the
gear and
the
thrust bosses
in
the
case. Ah anti-rattle plate assembly
at the
front
of
the countergear provides
a
constant spring tension
be-
tween
the
counter
and
clutch gears
to
reduce torsional
vibrations.
The
sliding reverse idler gear
is
carried
on
a bushing finish bored
in
place.
It
rotates
on a
short
idler shaft retained by
a
woodruff
key.
The synchronizer assemblies consist
of a
clutch
hub,
clutch sleeve,
two
clutch
key
springs and three energizer
clutch keys
and are
retained
as an
assembly on
the
main
shaft
by a
snap ring.
A great deal
of
similarity
and
interchangeability
now
exists between
the new 3 and
4-speed Saginaw trans-
missions.
However,
the
synchronizer assembly
at the
front
of the
mainshaft
is
used
for the
third and fourth rather than
the
second
and
third shift.
The
synchronizer assembly
at
the rear
of the
mainshaft
is
used
for the
first and second
rather than
the
first
and
reverse shift. Gear teeth
cut
in
the
first and second synchronizer sleeve (reverse gear)
distinguish
it
from
the
third
and
fourth synchronizer
sleeve.
Starting from
the
front, gears
on the
mainshaft
are
third, second
and
first rather than second, first and
re-
verse.
A
fourth blocker ring
is
used between
the 1-2
synchronizer assembly
and
first gear
on the
four-speed
transmissions.
The cover
on the new
four-speed transmission
is lo-*
cated
on the
left-hand side
of the
case.
It is
similar
to
the three-speed cover with
the
addition
of a
reverse
shifter shaft assembly, detent ball
and
detent spring.
Disassembly
and
assembly procedures
are
covered
in
this section.
CHEVROLET CHASSIS SERVICE MANUAL
Page 380 of 659

CLUTCH AND TRANSMISSIONS 7-21
MAINTENANCE AND ADJUSTMENTS
SHIFT LINKAGE ADJUSTMENT
(CHEVROLET & CHEVELLE)
1.
Set Lever (L) (M) and (P) in neutral detent position.
2.
Move Lever Stud (A) to neutral detent position and
insert Locating Gauge (B) into Control Lever Bracket
Assembly.
3.
Install Reverse Rod (H) with retainer on Lever (T).
4.
Maintaining Lever (T) against Locating Gauge, Adjust
Clevis (R) at Lever (P) until Clevis Pin freely passes
through holes in Clevis (R) and Lever (P).
5.
Install Clevis Pin, Washer and Cotter Pin; tighten
Nut (S) against Clevis (R).
6. Install Rod (K) with retainer on Lever (C).
7.
Maintaining Lever (C) against Locating Gauge, adjust
Clevis (N) at Lever (M) until Clevis Pin freely
passes through holes in Clevis (N) and Lever (M).
8. Install Clevis Pin, Washer and Cotter Pin; tighten
Nut (O) against Clevis (N).
9. Install Rod (J) with retainer on Lever (L).
10.
With two Jam Nuts (G), (E) and Swivel (F) loose on
Rod (J) insert and attach Swivel (F) with retainer to
Lever (D).
11.
Maintaining Lever (D) against Locating Gauge (B)
while holding Swivel (F) run Jam Nut (G) against
Swivel (F) then tighten other Jam Nut (E) against
swivel.
12.
Remove Locating Gauge and check shifts to insure
proper operation, readjust if necessary.
SHIFT LINKAGE ADJUSTMENT (CHEVY II)
1.
Set Levers (H) (R) and (T) in neutral detent position.
2.
Move Lower Control Lever (A) to neutral detent po-
sition and insert Locating Gauge (B) into Control
Lever Bracket Assembly.
3.
Install Reverse Control Rod (G) with retainer on
Lever (X).
4.
Maintaining Lever (X) in neutral position with Locat-
ing Gauge (B), Adjust Clevis (V) at lever (T) until
Clevis Pin freely passes through hole in Clevis (V)
and Lever (T).
5.
Install Clevis Pin, Washer and Cotter Pin. Tighten
Jam Nut (W) to specified torque against Clevis.
6. Install Control Rod (F) with retainer on Lever (C).
7.
Maintaining Lever (C) in neutral position with Locat-
ing Gauge (B), Jam Nuts (M and S) and Swivel (N)
loose on Rod (F), attach to Lever (R) with retainer.
8. While holding Swivel (N) run Jam Nut (M) against
Swivel (N) and tighten Jam Nut (S) against Swivel (N).
9. Install Rod (E) with retainer on Lever (D).
10.
Maintaining Lever (D) in neutral position with Locat-
ing Gauge (B) and Jam Nut (J and L) and Swivel (K)
loose on Rod (E) attach to Lever (H) with retainer.
11.
While holding Swivel (K) run Jam Nut (J) against
Swivel (K) and tighten Jam Nut (L) against Swivel (K).
12.
Remove Locating Gauge (B) and shift to insure proper
operation. Readjust clevis and swivels if necessary.
SHIFT LINKAGE ADJUSTMENT
(CAMARO AND CORVETTE)
1.
Set Transmission Shift Levers in neutral position.
2.
Move Lever Arm (A) and Lever (C) (D) and (E) to
neutral position and insert Locating Gauge (B) into
Control Lever Bracket Assembly.
N
f E
Fig.
IX - Shift. Linkage (Chevrolet & Chevelle)
CHEVROLET CHASSIS SERVICE MANUAL
Page 381 of 659

CLUTCH AND TRANSMISSIONS 7-22
Fig.
2X - Shift Linkage (Chevy II)
3.
Install Reverse Rod (J) with Retainer on Lever (N).
4.
With two Jam Nuts and Swivel loose on Rod (J) insert
and attach Swivel with Retainer to Lever (E).
5. Maintaining Lever (E) against Locating Gauge (B)
while holding Swivel run front Jam Nut against Swivel
then tighten rear Jam Nut against Swivel to specified
torque.
6. Install Rod (O) with Retainer on Lever (M)o
7. With two Jam Nuts and Swivel loose on Rod (O) insert
and attach Swivel with Retainer to Lever (C).
8. Repeat Step 5 Maintaining Lever (C) against Locating
Gauge (B).
9. Install Rod (K) with Retainer on Lever (L).
10.
With two Jam Nuts and Swivel retain to Lever (D).
11.
Repeat Step 5 maintaining Lever (D) against Locating
Gauge (B).
12.
Remove Locating Gauge and check shift to insure
proper operation. Readjust if necessary.
N
<
^ ii
K
3 A
1-2 DETENT
CAM
PIVOT PIN
DETENT
SPRING
3-4 DETENT
CAM
3-4
SHIFT FORK
1-2 SHIFTER
SHAFT ASSY.
REVERSE
SHIFTER SHAFT
ASSY.
3-4 SHIFTER
SHAFT ASSY.
DETENT SPRING
RETAINER
& BALL (UNDERNEATH) 1-2 SHIFTER R,NG
FORK
Fig.
3X - Comoro and Corvette Shift Linkage
Fig.
4X - Transmission Side Cover/ Shift Fork and Detent Assembly
TRANSMISSION SIDE COVER
Removal
1.
Disconnect control rods from levers.
2.
Shift transmission into neutral detent positions be-
fore removing cover.
3.
Remove cover assembly from transmission case
carefully and allow to drain.
Disassembly (Fig. 4X)
1.
Remove the outer shifter levers.
2.
Remove both shift forks from shifter shaft assem-
blies.
Remove all three shifter shaft assemblies
from cover. "O" ring seals around shifter shaft
may now be pryed out if required because of damage.
Remove reverse shifter shaft detent ball and spring,
3.
Remove detent cam spring and pivot retainer "C"
ring. Mark to identify for reassembly, then remove
both detent cams.
4.
Replace damaged parts.
CHEVROLET CHASSIS SERVICE MANUAL
Page 382 of 659

CLUTCH
AND
TRANSMISSIONS
7-23
Assembly (Fig.
4X)
1.
With detent spring tang projecting
up
over
the 3rd
and
4th
shifter shaft cover opening install
the
first
and second detent
cam
onto
the
detent
cam
pivot
pin.
With
the
detent spring tang projecting
up
over
the
first
and
second shifter shaft cover hole install
the
3rd
and 4th
detent
cam,
NOTE:
The 1-2
detent
cam has a
.090" greater
contour
on the
inside detent notch.
2.
3.
Install detent
cam
retaining
"C"
ring
to
pivot shaft,
and hook spring into detent
cam
notches.
Install
1-2 and 3-4
shifter shaft assemblies
in
cover
being careful
not to
damage seals. Install both shift
forks
to
shifter shaft assemblies, lifting
up on
detent
cam
to
allow forks
to
fully seat into position.
4.
Install reverse detent ball
and
spring
to
cover, then
install reverse shifter shaft assembly
to
cover.
5.
Install outer shifter levers, flat washers, lock wash-
ers
and
bolts.
Installation
1.
Shift shifter levers into neutral detent (center) posi-
tion. Position cover gasket
on
case.
2.
Carefully position side cover into place making sure
the shift forks
are
aligned with their respective
mainshaft clutch sliding sleeves.
Install cover attaching bolts
and
tighten evenly
to
specified torque.
Remove filler plug
and add
lubricant specified
in
Section
0, to
level
of
filler plug hole.
3.
4.
ALUMINUM POWERGLIDE
INDEX
Page
General
Description
7-23
Maintenance
and
Adjustments .............. 7—23
Oil
Level Check
7-23
Periodic
Oil
Change
7-24
Periodic
Low
Band Adjustment
7-24
Manual
Shift Linkage Check
and
Adjust
7-24
Floor
Shift Linkage
7-25
Floor
Mounted Control Lever
and
Bracket
Assembly
7-29
Throttle
Valve Linkage
.... 7-29
Neutral
Safety Switch
.. . 7-30
Throttle
Return Check Valve (Dashpot)
7-30
Component
Parts Replacement
7-30
Transmission
Replacement .............. 7—30
Page
Other
Service Operations
7-32
Diagnosis
7-32
Warming
Up
Transmission
7-32
Shop
Warm
Up , 7-32
Road
Warm
Up 7-32
Checking
Fluid Level
and
Condition
7-32
Manual
Linkage
7-32
Oil
Leaks
7-33
Basic
Pressure Checks
7-33
Wide
Open Throttle Upshift Pressure Check
.... 7-33
Idle
Pressure
in
Drive Range
7-33
Manual
"Low"
Range Pressure Check .......
7-33
Drive
Range Overrun (Coast) Pressure
.
.......
7-33
Powerglide
Shift Points
. . 7-35
GENERAL DESCRIPTION
The case
and
converter housing
of the two
speed alumi-
num Powerglide Transmission
is a
single case aluminum
unit. When
the
manual control
is
placed
in the
drive
po-
sition,
the
transmission automatically shifts
to low
gear
for initial vehicle movement.
As the car
gains speed
and
depending
on
load
and
throttle position,
an
automatic shift
is made
to
high gear.
A
forced downshift feature
pro-
vides
a
passing gear
by
returning
the
transmission
to low
range.
The
oil
pump assembly
is a
conventional gear type
and
the
oil
pump housing
is of the
large diameter type acting
as
the
front bulkhead
of the
transmission.
The
torque
converter
is a
conventional three element welded design
bolted
to the
engine flywheel which drives through
a
two-
speed planetary gearset.
The
high clutch assembly
is
typical
of the
designs used
in
this type transmission.
The
aluminum Powerglide uses
an
output shaft mounted
gov-
ernor which requires
a
hole through
the
output shaft.
The
reverse clutch assembly
is a
multiple disc type clutch.
The steel plates
are
splined directly
to the
case while
the
face plates
are
splined
to the
internal
or
ring gear.
The
clutch piston operates within
the
rear portion
of the
case.
The internal diameter
of the
pistoh
is
sealed to
an
integral
hub portion
of the
case rear bulkhead.
The
outside
dia-
meter
is
sealed
to a
machined portion
of the
case.
The
piston
is
hydraulically applied
and is
released
by
separate
coil springs.
The
valve body assembly
is
bolted
to the
bottom
of the
transmission case
and is
accessible
for
service
by
removing
the oil pan
assembly.
The
valve
body consists
of an
upper
and
lower body located
on
either
side
of a
transfer plate.
The
vacuum modulator
is lo-
cated
on the
left rear face
of the
transmission case.
The
modulator valve bore
is
located
in the
upper valve body.
MAINTENANCE
AND
ADJUSTMENTS
OIL LEVEL CHECK
The transmission
oil
level should
be
checked period-
ically
as
recommended
in
Section
0. Oil
should
be
added
only when level
is on or
below
the
"ADD" mark
on the dip
stick with
oil hot or at
operating temperature.
The oil
level
dip
stick
is
located
at the
right rear
of the
engine
compartment. Fill with
oil
specified
in
Section
0.
In order
to
check
oil
level accurately,
the
engine should
be idled with
the
transmission
oil hot and the
control
lever
in
neutral (N) position.
It
is
important that
the oil
level
be
maintained
no
higher than
the
"FULL" mark
on the
transmission
oil
level gauge.
DO NOT
OVERFILL,
for
when
the oil
level
CHEVROLET CHASSIS SERVICE MANUAL
Page 383 of 659

CLUTCH AND TRANSMISSIONS 7-24
is at the full mark on the dip stick, it is just slightly be-
low the planetary gear unit. If additional oil is added,
bringing the oil level above the full mark, the planetary
unit will run in the oil, foaming and aerating the oil. This
aerated oil carried through the various oil pressure pas-
sages (low servo, reverse servo, clutch apply, converter,
etc.) may cause malfunction of the transmission assem-
bly, resulting in cavitation noise in the converter and
improper band or clutch application. Overheating may
also occur.
If the transmission is found consistently low on oil, a
thorough inspection should be made to find and correct
all external oil leaks.
PERIODIC OIL CHANGE
The transmission oil should be changed periodically as
recommended in Section 0, and whenever transmission is
to be removed from the vehicle for repairs.
1.
Run engine for one minute in neutral prior to chang-
ing.
2.
Be sure vehicle is level or raise from the rear only.
3.
Remove the oil pan drain plug and allow oil to drain
thoroughly into a pan or can.
Replace drain plug and refill with approximately two
quarts of oil specified in Section 0.
NOTE: To refill the transmission, remove dip
stick from oil filler tube and refill transmission
with oil specified in Section 0 using filler tube
and funnel J-4264. Then, after shifting into all
ranges at idle speed to fill all oil passages, the
engine should be run at 800-1000 rpm with the
transmission in Neutral until the oil warms up,
then add oil as required to raise the fluid level
to the full mark on the dip stick. Refill capacity
is approximately 2 qts.
4.
Fig.
1PG - Adjusting Low Band Using J-21848
PERIODIC LOW BAND ADJUSTMENT (Fig. 1PG)
Low band adjustment should be periodically performed
at 12,000 mile intervals, or sooner, as necessary if op-
erating performance indicates low band slippage.
1.
Raise vehicle and place selector lever in neutral.
2.
Remove protective cap from transmission adjusting
screw.
3.
a. On Corvette Models: Drop left exhaust pipe for
clearance.
b.
On Chevelle Models: To gain clearance between
underbody and transmission, it may be necessary
to remove rear mount bolts from crossmember,
and move transmission slightly toward passenger
side of vehicle. .
4.
Loosen adjusting screw lock nut 1/4 turn and hold in
this position with wrench.
5.
Using Special Tool J-21848 adjust band to 70 in. lbs.
and back off four (4) complete turns for a band which
has been in operation for 6,000 miles or more,.or
three (3) turns for one in use less than 6,000 miles.
CAUTION: Be sure to hold the adjusting screw
lock nut at 1/4 turn loose with a wrench during"
the.adjusting procedure.
6. Tighten the adjusting screw lock nut to specified
torque.
CAUTION: The amount of back-off is not an
approximate figure, it must be exact.
MANUAL SHIFT LINKAGE CHECK & ADJUST
(Column Type)
1.
The shift tube and lever assembly must be free in the
mast jacket. See Section 9 for alignment of steering
column assembly if necessary.
2.
To check for proper shift linkage adjustment, lift
the transmission selector lever towards the steering
wheel. Allow the selector lever to be positioned in
drive (D) by the transmission detent.
NOTE: Do not use the indicator pointer as a
reference to position the selected lever. When
performing linkage adjustment, pointer is ad-
justed last.
3.
Release the selector lever. The lever should be in-
hibited from engaging low range unless the lever is
lifted.
4.
Lift the selector lever towards the steering wheel,
and allow the lever to be positioned in neutral (N) by
the transmission detent.
5.
Release the selector lever. The lever should now
be inhibited from engaging reverse range unless the
lever is lifted.
6. A properly adjusted linkage will prevent the selector
lever from moving beyond both the neutral detent, and
the drive detent unless the lever is lifted to pass
over the mechanical stop in the steering column.
7.
In the event that an adjustment is required, place
the selector lever in drive (D) position as determined
by the transmission detent. See Steps 2 and 3.
8. Loosen the adjustment swivel at the cross-shaft,
and rotate the transmission lever so that it contacts
the drive stop in the steering column.
9. Tighten the swivel and recheck the adjustment. See
2 and 6.
CHEVROLET CHASSIS SERVICE MANUAL
Page 384 of 659

CLUTCH AND TRANSMISSIONS 7-25
Fig.
2PG - Chevrolet Shift Linkage Adjustments
10.
11.
Readjust indicator needle if necessary to agree with
the transmission detent positions. See Section 9.
Readjust neutral safety switch if necessary to pro-
vide the correct relationship to the transmission
detent positions. See Section 12.
CAUTION: Any inaccuracies in the above ad-
justment may result in premature failure of the
transmission due to operation without controls
in full detent. Such operation results in reduced
oil pressure and in turn partial engagement of
the affected clutches. Partial
of the
clutches with sufficient pressure to cause ap-
parent normal operation of the vehicle will
result in failure of the clutches or other in-
ternal parts after only a few miles of operation.
Floor Shift Linkage
Chevrolet Linkage Adjustment (Fig. 6PG)
1.
Loosely assemble Nuts (A) and (B) on Lower Rod (C).
2.
Set Transmission Lever (D) in drive position.
NOTE:
Obtain drive position by moving Trans-
mission Lever counter-clockwise to low detent,
then clockwise one detent position to drive.
3.
Set Control Pawl Lever Rod (E) in Neutral or drive
notch of Detent (F). See View A.
4.
Apply load in direction of Arrow (Y) on Actuating
Lever (G) until pawl Rod comes in contact with
Detent at Contact Point (Z). See View A.
5. Place a 7/64" Spacer (H) between Nut (A) and Swivel
(J),
run Nut (A) until it touches spacer. Remove
Spacer and apply load in the direction on Arrow (X)
until it touches Nut (A). Tighten Nut (B) against
Swivel and lock Swivel between Nuts (A) and (B).
See View B.
Chevelle Linkage Adjustment (Fig. 7PG)
1.
Assemble Nuts (A) and (B) on Lower Rod (C) loosely.
2.
Set Transmission Lever (D) in drive position.
NOTE:
Obrain drive position by moving Trans-
CHEVROLET CHASSIS SERVICE MANUAL