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21 - 4
MANUAL TRANSMISSION
•
(2) Disconnect the wires f r o m t h e distance sensor
(Fig. 5).
(3) Loosen t h e distance sensor coupling and remove
the sensor f r o m the speedometer adapter (Fig. 5).
(4) Remove the bolt a n d retainer securing t h e
speedometer p i n i o n adapter i n t h e extension h o u s i n g
(Fig. 5).
(5) Carefully work t h e adapter a n d p i n i o n o u t o f
the extension housing.
(6) Remove and discard t h e adapter O-ring.
(7) Inspect t h e adapter. I f transmission fluid i s
found i n t h e coupling section of the adapter housing,
the o i l seal i s l e a k i n g a n d w i l l require replacement.
Refer to A d a p t e r O i l Seal Replacement
LOCK
OIL
Fig. 5 Speedometer Adapter And Pinion
Components
ADAPTER
OIL SEAL
REPLACEMENT
(1) Remove t h e C-shaped lock r i n g securing t h e
seal i n t h e adapter (Fig. 5).
(2) Remove the old seal from t h e adapter w i t h a
small screwdriver or hooked tool.
(3) Start t h e new seal i n t h e adapter by h a n d a n d
insert t h e lock r i n g i n t h e adapter.
(4) Seat t h e seal i n t h e adapter w i t h tool C-4004
(Fig. 6). Press t h e seal and lock r i n g into place u n t i l
the i n s t a l l e r tool bottoms.
ADAPTER
LOCK RING
OIL SEAL
RH263
Fig. 6 installing Adapter Oil Seal And Lock
Ring
ADAPTER
AND PINION
INSTALLATION
CAUTION: Before installing the pinion and adapter
assembly make sure the adapter flange and the
mating area in the extension housing are perfectly
clean. Dirt, sand, or foreign material will cause mis-
alignment resulting in speedometer pinion gear
damage.
(1)
Thoroughly
clean
t h e adapter flange a n d
adapter m o u n t i n g surface i n t h e extension housing.
These surfaces m u s t be clean for proper
adapter
a l i g n m e n t and speedometer operation.
(2) I n s t a l l a new O-ring on t h e adapter.
(3) Lu br ic a te t h e adapter o i l seal a n d O - r i n g w i t h
transmission
fluid.
(4) Count t h e number of teeth on t h e p i n i o n gear
and i n s t a l l t h e gear i n t h e adapter. Be sure t o count
the gear teeth b e f o r e i n s t a l l i n g t h e gear.
(5) Note t h e range numbers on t h e adapter face
(Fig. 7). These numbers correspond to t h e n u m b e r of
teeth on t h e speedometer p i n i o n gear.
(6) Insert t h e adapter i n the extension housing.
(7) Rotate t h e adapter u n t i l t h e r e q u i r e d range
numbers are a t a six o-clock position (Fig. 7). Be sure
the adapter range numbers correspond to t h e n u m b e r
of teeth on t h e pinion.
(8) L i g h t l y push t h e adapter a l l the w a y i n t o t h e
extension housing.
(9) I n s t a l l t h e adapter retainer. T i g h t e n t h e re-
t a i n e r bolt to 100 in-lbs ( H N » m ) torque.
(10) I n s t a l l t h e distance sensor on t h e adapter.
T i g h t e n t h e sensor coupling n u t t o 150 in-lbs (17
N»m) torque and i n s t a l l t h e sensor wires.
(11) Check a n d top off the transmission l u b r i c a n t
level i f necessary.
Fig. 7 Indexing Speedometer Adapter
EXTENSION HOUSING YOKE SEAL REPLACEMENT
(1) Raise the vehicle a n d position a d r a i n p a n u n -
der the extension housing.
(2) M a r k position o f t h e propeller shaft a n d rear
axle yokes for alignment reference.
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