Chevrolet 10 Series 1970 Service Manual page 448

CLUTCHES AND TRANSMISSIONS 7-18
F i g . 5 C — R e p l a c i n g R e a r R e t a in in g
h. Install output yoke or companion flange o r m ain­
shaft. Using a flange o r yoke holding tool in stall
retaining nut. T orqu e the retaining nut as follow s:
T ran sm ission
M u n c ie ...........................
NP435 ...........................
NOTE:
On som e m odels with SM420 tra n sm is­
sion, install flange o r yoke retaining bolt. Torque
bolt to 60-65 ft. lbs.
i . Install speedom eter
speedom eter cable.
5. Reconnect p ro p e lle r
scrib ed in "P R O P E L L E R
this manual.
6. R e fill transm ission with lubricant recom m ended in
L U B R IC A T IO N (Section 0) o f this manual.
SPEEDOMETER DRIVEN GEAR REPLACEMENT
Disconnect speedom eter cable,
housing bolt and lock w asher and rem ove lock plate. In­
s e rt screw d riv e r in lock plate slot in fitting and p ry fit ­
ting, gear and shaft fro m housing. P r y " O " ring from
g ro o v e in fitting.
" O"
Install new rin g in gro ove in fitting, coat " O "
rin g and driven g ea r shaft with transm ission lubricant
and in sert shaft.
Hold the assem bly so slot in fitting is tow ard lock plate
boss on housing and in stall in housing. Push fitting into
housing until lock plate
attached to housing.
TRANSMISSION SIDE COVER
REPLACEMENT REPAIR
S aginaw and Muncie 3-Speed (Fig. 6c)
1. Disconnect control rods fro m le v e r s , back-up lamp
w irin g and TCS switch.
2. Shift transm ission into neutral detent positions b e­
fo re rem ovin g co v e r.
tran sm ission case ca refu lly and allow o il to drain.
O i l S e a l - 4 - S p e e d
Retaining N ut-Torque
95-120 ft.-lb s .
90-130 ft.-lb s .
driven gea r, then connect
shaft to tran sm ission as d e­
S H A F T S " (Section 4) of
rem ove lock plate to
can be inserted in g ro o ve and
Rem ove co v er assem bly from
3. R em ove the outer sh ifter le v e rs .
4. R em ove both shift forks fro m sh ifter shaft a ssem ­
b lie s . R em ove both sh ifter shaft assem b lies from
co v er. " O " ring seals around sh ifter shaft may now
be p ried out i f replacem ent is requ ired because o f
damage.
5. Rem ove detent cam spring and pivot reta in er
ring. Rem ove both detent cam s.
6. W ith detent spring tang projectin g up o v e r the 2nd
and 3rd sh ifter shaft co v e r opening install the fir s t
and re v e r s e detent cam onto the detent cam pivot
pin. W ith the detent spring tang p ro jectin g up o v e r
the fir s t and re v e r s e sh ifter shaft co v er hole install
the 2nd and 3rd detent cam.
7. Install detent cam retaining
and hook spring into detent cam notches.
8. Install both sh ifter shaft a ss em b lie s in co v e r being
carefu l not to damage seals.
to sh ifter shaft assem b lies, liftin g up on detent cam
to allow fork s to fu lly seat into position.
M u n c i e
9. Install outer sh ifter le v e rs , flat washers, lock wash­
e rs and bolts.
10. Shift sh ifter le v e r s into neutral detent (cen ter) p o s i­
tion and slide co ve r into place making sure the shift
forks are aligned with their re sp ectiv e mainshaft
clutch sliding sleeves.
11. Install co v er attaching bolts and tighten evenly to
sp ecified torque.
w irin g.
12. Rem ove fille r plug and add lubricant sp ecified in
Section 0, to le v e l o f fille r plug hole.
TRANSFER CASES
CONTROL LEVER A N D ADAPTER REPLACEMENT
Rem oval— Dana Transfer Case
1. Rem ove tra n sfer case shift le v e r boot retain er at­
taching screw s and retain er from com partm ent flo o r.
2. R em ove flo o r coverin g from veh icle.
3. R em ove tran sm ission shift le v e r boot reta in er at­
taching screw s.
F i g . 6 C — T ra n s m is s io n S id e C o v e r A s s e m b ly — 3 - S p e e d
T r a n s f e r C a s e C o n t r o l A s s y . - B l a z e r M a n u a l
" C" ring to pivot shaft,
Install both shift forks
In stall TCS switch and connect
DETENT C A M
RETAINER R IN G
CHEVROLET TRUCK SERVICE MANUAL
" C"
S a g in a w