Chevrolet 70 1969 Series, Shop Manual

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TRANSMISSION AND CLUTCH 7-68
Figure 1 9 — R em o v in g or installing M a in Drive G e a r B ea rin g Retainer
Nut
8. Remove 3rd speed gear and bushing assem bly (61),
locating thrust washer (60), and 2nd and 3rd speed
synchronizer (59) from m ainshaft (52).
9. Using snap ring picks (J-8461-1), remove 2nd speed
gear retaining ring (58) (fig. 16), selective retainer
w asher (57), 2nd speed constant mesh gear (56), and
sleeve lock pin (72), from m ainshaft (52).
N O T E : It m a y b e necessary to use b e a r in g re ­
m o ve r plates (J -8 1 7 6 ) or other su ita b le puller
1. Clutch Housing
2. P.T.O. Cover
3. Gasket
4. Bolt
5. Filler Plug
6. Transmission Case
7. Countershaft Rear Bearing
8. Rear Bearing Retainer Nut
9. Countershaft Rear Bearing Cap
10. Speedometer Drive Gear
11. Mainshaft Rear Bearing Cap
12. Rear Bearing C ap Oil Seal
13. Companion Flange
14. Companion Flange Nut
15. Driven Gear Adapter
16. Speedometer Driven Gear
17. Gasket
18. Gasket
19. Mainshaft Rear Bearing
20. Mainshaft 1st Gear Thrust
Washer
21. Drain Plug
22. Clutch Housing Stud Nut
23. Lock Washer
24. Oil Gallery Magnetic Plug
25. Clutch Housing Cover
26
.
Lock Washer
27. Cover Bolt
28. Bearing C a p Attaching Bolt
Figure 2 0 — R e m o vin g M a in Drive G e a r B ea ring
to re m o ve the b u s h in g sleeve (5 5 ) from m a in ­
s h a ft (5 2 ). R e m o v e b u sh in g sleeve by b u m p in g
a g a in s t w o o d block a s s h o w n in Figure 17.
C O U N T E R S H A F T D IS A S S E M B L Y
N O T E : K e y n u m b e rs in text refer to F igu re 21.
55. Mainshaft 2nd Speed Gear
Bushing Sleeve
56. Mainshaft 2nd Speed Gear
and Bushing Assembly
57. 2nd Gear Retainer Washer
Selective
58. 2nd Gear Retainer Snap Ring
59. 2nd and 3rd Speed
Synchronizer Assembly
60. Mainshaft 3rd Speed Gear
Thrust Washer
61. Mainshaft 3rd Speed Gear
and Bushing Assembly
62. Mainshaft 4th Speed Gear
Locating W asher
63. Mainshaft 4th Speed Gear
Bushing Sleeve
64. Mainshaft 4th Speed Gear
and Bushing Assembly
65. 4th Speed Gear Retainer
W asher - Selective
66. 4th Gear Retainer Snap Ring
67. 4th and 5th Speed
Synchronizer Assembly
68. Mainshaft Pilot Bearing
69. M ain Drive Gear " O " Ring
70. Rotor Vane
71. Rotor Drive Pin
72. Bushing Sleeve Pin
29. Lock Washer
30. Countershaft Front Bearing
31. Front Bearing Spacer
32. Countershaft Drive Gear
Retainer Ring
33. Countershaft Drive Gear
34. Drive Gear Spacer
35. Countershaft 4th Speed Gear
36. Countershaft 3rd Speed Gear
37. Countershaft Gear Keys
38. Countershaft
39. Reverse Idler Shaft Lock
40. Lock Bolt
41. Reverse Idler Shaft
42. Reverse Idler Gear Bearing
43. Bearing Spacer
44. Reverse Idler Gear
45. Reverse Idler Gear Bearing
46. Miain Drive Gear Bearing
Cap
47. Pressure Rotor
48. Rotor Backing Plate
49. Bearing Retainer Nut
50. Main Drive Gear Bearing
51. Miain Drive Gear
52. Mainshaft
53. Mainshaft Reverse Gear
54. Mainshaft 1st Speed Gear and
Bushing Assembly
L e g e n d for Fig. 21
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L