Chevrolet 70 1969 Series, Shop Manual

Page: 840 / 913

TRANSMISSION AND CLUTCH 7-94
INSTALLATION OF CONTROL
TOWER
(Key N um bers Refer to Figure 4)
INSTALLATION OF CLUTCH
H O U SIN G
(Key N um bers Refer to Figure 1)
N O T E : Install control to w e r a s described b e lo w
o n ly w h e n the tran sm issio n is g o in g into stor­
a g e , o th e rw ise refer to a p p lic a b le Service M a n ­
u al for "T ra n s m iss io n In s ta lla tio n " procedures.
1. C oat gasket (11) with sealing cem ent and position on
shifter housing (12).
2. Position plunger (16), in 1st and reverse shift finger
(9), then carefully position control tower and gearshift
lever assembly on the shifter housing (12).
3. Install plunger (13), plunger spring (14) and plunger
retainer (15).
4. Install cap screws (20), and washers (19) retaining
control tower (6) to shifter housing. Tighten cap screws
firmly.
IM P O R T A N T : If a n e w clutch h o u s in g (3 ) is to
be installed, the rear face of th e h o u s in g m u st
first b e checked for s q u a re n e ss a n d th e pilot
hole for concentricity w ith the e n g in e on w h ic h
the o v e rh a u le d tran sm issio n w ill be installed.
1. Apply a light coat of gasket sealing cem ent to front
of transm ission case and set clutch housing gasket in
place. Apply a light coat of sealing cem ent to face of gas­
ket.
2. Set clutch housing in place, using m ain drive gear
bearing cap (2) as a centering tool. Install cap screws and
washers to secure clutch housing to transm ission case.
Tighten cap screws to 60-80 foot-pounds torque.
SPECIFICATIONS
5652 5752 5752C
7.08 6.10 6.10
3.83
3.30 3.30
2.36 2.04 1.81
1.45 1.40 1.17
1.00 1.00 1.00
7.50
6.46 6.46
G E N E R A L D A T A
M a k e ....................................................................Spicer
T y p e ............................................. 5-Speed Sy n c h ro m e sh
M o d e ls .......................................56 52 , 57 52 , a n d 5 7 5 2 C
Clutch H o u s in g .................................................S.A.E. #2
G E A R R A T IO S — A ll R atios A re (to 1)
T ra n sm issio n M o d e l. . .
1 st.........................
2 n d ........................
3 r d .........................
4 t h .........................
5 t h .........................
R e v e rs e ..................
H O U S IN G S (N E W LIM IT S)
Shifter H o u s in g
Shift Rod B o re ....................................... 0 . 6 2 6 "-0 .6 3 0 ''
T ra n sm issio n C ase
M a in D riv e G ear Bearing B o r e ............ 4 . 7 2 4 4 "- 4 . 7 2 5 4 "
M a in s h a ft Re ar Be arin g B o r e .............. 4 . 3 3 0 7 "- 4 . 3 3 1 7 "
C oun te rshaft Front Be arin g B o r e ......... 3 . 1 4 9 6 "-3 .1 5 0 6 "
C oun te rshaft Rear Be arin g B o r e .......... 3 . 5 4 3 3 "- 3 . 5 4 4 3 "
Re ve rse Idler Shaft B o re ..................... 1 . 0 0 0 5 "- 1 .0 0 1 5 "
S H A F T S (N E W LIM ITS)
M a in sh a ft
Diam eter a t Pilot B e a r in g ....................1 . 3 0 9 6 "-1 .3 1 0 1 "
Diam eter at 2n d a n d 3rd S y n c h ro n iz e r .2 .1 5 2 0 "- 2 .1 5 2 5 "
Diam eter at Rear B e a r in g ................... 1 .9 6 8 3 "- 1 . 9 6 8 7 "
B a ck la sh w ith 4th a n d 5th Syn ch ro n ize r. . 0 . 0 0 4 "- 0 . 0 0 7 "
B a ck la sh w ith 1st a n d R e ve rse G e a r ....... 0 . 0 0 4 "-0.0 0 7
L e n g th ............................................... 1 9 .2 5 0 "-1 9 . 3 1 2 "
Countershaft
Diam eter at Front B e a r in g ...................1 . 9 6 6 3 "-1 .9 6 6 9 "
Diam eter at Countershaft D riv e G e a r ...... 2 . 1 2 6 "-2 . 1 2 7 "
Diam eter at 4th Speed G e a r ................... 2 . 3 7 3 "-2 . 3 7 4 "
Diam eter at 3rd Speed G e a r ................... 2 . 3 7 6 "-2 . 3 7 7 "
Diam eter at 2n d Speed G e a r .................. 2.381 "- 2 . 3 8 2 "
Diam eter at Rear B e a r in g ................... 1 .5 7 4 6 "-1.5 7 5 0 "
Le n g th ............................................... 1 7 .1 1 5 "- 1 7 .1 3 5 "
R e ve rse Idler G ea r Shaft
Diam eter at B e a r in g s ..........................0 . 9 9 9 5 " - l .0 0 0 0 "
Diam eter at T ra n sm issio n C a s e ...........1 . 0 0 1 5 "-1 .0 0 2 0 "
L e n gth .................................................. 6 . 7 4 0 "- 6 . 7 6 0 "
B E A R IN G S (N E W LIM ITS)
M a in D riv e G ear
T y p e .............................. Sin gle R o w Ball w / S n a p R in g
O u tsid e D ia m e te r...............................4 .7 2 3 8 "-4 .7 2 4 4 "
Inside D iam e te r..................................2 . 5 5 8 5 "-2 .5 5 9 1 "
B a lls ............................................... (15) 2Mh" Diam eter
W id th ................................................ 0 .9 0 0 5 "- 0 . 9 0 5 5 "
M a in sh a ft Pilot
T y p e ........................................ N e ed le B e arin g Rollers
N u m b e r ..................................................................14
D iam e te r........................................... 0 .3 7 4 8 "- 0 . 3 7 5 0 "
Le n g th ...................................................0 .7 4 5 "- 0 . 7 5 0 "
M a in s h a ft Rear
T y p e .............................. S in g le R o w Ball w / S n a p R in g
O u tsid e D ia m e te r...............................4 .33 01 "- 4 . 3 3 0 7 "
In sid e D ia m e te r..................................1 . 9 6 8 0 "-1 .9 6 8 5 "
B a lls ............................................... (12) 2%
2
" Diam eter
W id th ................................................ 1 .0 6 2 5 "-1 .0 6 3 0 "
Countershaft Front
T y p e ............................................... S in g le R o w Roller
O u tsid e D ia m e te r............................... 3.1491 "- 3 . 1 4 9 6 "
Insid e D iam e te r..................................1 .9 6 7 5 "-1 .9 6 7 9 "
W id th ................................................ 0 .7 0 8 2 "- 0 .7 0 8 7 "
Countershaft Rear
T y p e . ............................. S in g le R o w Ball w / S n a p R in g
O u tsid e D ia m e te r............................... 3 . 5 4 2 7 "-3 .5 4 3 3 "
Inside D ia m e te r..................................1 . 5 7 4 3 " - ! . 5 7 4 8 "
W id th .................................................... 0.901 "-0 .9 0 6 "
Re ve rse Idler G ear
T y p e .................................................................. Roller
O u tsid e D iam eter (Shaft In sta lle d )......................1 .6 2 5 "
Inside Diam eter (Shaft In sta lle d )........................1.000
M A I N D R IV E G E A R (N EW LIM ITS)
M a in D rive G ea r (T ra n sm issio n M o d e l 5 6 5 2 )
Diam eter at Pilot B e a rin g ....................0 . 9 8 3 0 "-0 .9 8 3 6 "
N u m b e r of S p lin e s .................................................. 10
O u tsid e D iam eter at S p lin e .....................1 .4 9 6 "-1 .4 9 7 "
T h ickness of S p l in e s . . ............................0 . 2 2 9 "- 0 . 2 3 1 "
D iam eter at M a in D rive G ea r B e arin g. . 2 . 5 5 9 0 "-2 .5 5 9 5 "
N u m b e r Teeth— M a in D rive G e a r ............................. 2 3
B a ck la sh w ith M a t e ............................... 0 . 0 0 6 "- 0 . 0 1 1 "
In sid e Diam ete r of M a in s h a ft
Pilot B e arin g Su rfa c e .......................2 . 0 6 2 6 -2 .0 631
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK S H O P M A N U A L