Section 04 TRANSMISSION
Sub-Section 07 (CHAINCASE)
04-07-3
The chain length may be affected depending the
combination of lower / upper sprockets as
follows :
OPT. = Optional
* Chaincase protector
no. 8
is mandatory with
this sprocket.
CAUTION : Such modifications should
only be performed by experienced me-
chanics since they can greatly affect vehicle
performance.
NOTE :
For high altitude regions, the High
Altitude Technical Booklet (P / N 484 0648
00 and P / N 484 0545 00 for binder) gives infor-
mation about calibration according to altitude.
ASSEMBLY
Position oil deflector ring
no. 10
then sit bearing
in chaincase aperture. Install spacer then the oth-
er bearing.
1. Toward chaincase
2. Oil deflector
3. Bearing
1, Oil Seal
Using an appropriate pusher, press new oil seal
no. 7
into chaincase hub. Oil seal must sit flush
with case hub edge.
INSTALLATION
Reverse removal procedure. Pay particular atten-
tion to the following :
Torque castellated nut
no. 7
to 14 N•m (124
lbf•
in
), slacken then retorque to 0.5-2.5 N•m (5-
22 lbf•
in
).
In case of a vehicle equipped with an 11 teeth
sprocket, check the wear of protectors
no. 8
. Re-
place if required.
Grease new gasket
no. 20
with petroleum jelly, or
other suitable product, and install gasket making
sure gasket it does not shift from its correct posi-
tion. Tighten bolts evenly.
NOTE :
Bottom pan has an emboss below
chaincase housing to ease installation.
23, Chaincase Oil
Remove filler cap and pour 200 mL (7 fl. oz) of
chaincase oil (P / N 413 8019 00) into chaincase.
NOTE :
Chaincase oil capacity is 200 mL (7
fl. oz).
Check the oil level by removing the chaincase oil
level plug.
1. Filler cap
2. Oil level plug
The oil should be leveled with the bottom of the
oil level orifice.
Reinstall battery and connect cables on electric
starting model.
CAUTION : Always connect positive RED
cable first to prevent sparks.
GEAR RATIO /
CHAIN LENGTH CHART
GEAR
RATIO
CHAIN LENGTH
(LINKS)
STANDARD
ON
11 / 27* 62 OPT.
14 / 25* 62 Tundra II LT
A01D0FA
1
23
'
1
2
A03D02A
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