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GM COACH MAINTENANCE MANUAL
Sec. 17
Page 181
TRANSMISSION
Figure 2-Arrangement
of
Mainshaft,
Countershaft,
and Reverse Idler Gears, and Sliding
Clutches for
Reverse Operation
1 Main Case Cover
2 Bearing Cap
3 Bearing Cap Drain Tube
4 1st, 2nd, and Reverse
Shift Finger
5 1st, 2nd, and Reverse
Shift Lever
6 1st, 2nd, and Reverse
Shift Shaft
7 1st and 2nd Speed Shift Fork
8 1st, 2nd, and Reverse
Shift Rod
9 Mainshaft 1st Speed Gear
10 Propeller Shaft Flange Nut
11 Propeller Shaft Flange
12 Shims
13 Oil Seal
14 Bearing Cap Stud Nut
15 Bearing Spacer
16 Gasket
17 Shims
18 Angle Drive Outer Tapered
Bearing
19 Bearing Retainer
20 Angle Drive Inner Tapered
Bearing
21 Speedometer Drive Gear
22 Speedometer Driven Gear
23 Angle Drive Case
24 Spacer
25 Snap Ring
26 Angle Drive Gear Roller
Bearing
27 Angle Drive Case Cover
28 Angle Drive Gear and Shaft
29 Bevel Pinion Rear Spacer
30 Mainshaft Inner Rear
Bearing
31 Bearing Retainer
32 Mainshaft
33 Mainshaft Outer Rear
Bearing
34 Lock Washer
35 Mainshaft Rear Bearing Nut
36 Mainshaft Rear Bearing Cap
37 Shims
38 Shims
39 Oil Pump Relief Valve Ball
40 Relief Valve Spring
41 Relief Valve Plug
42 Pressure Relief Valve Plug
Washer
4 3 B eve! Pinion
44 Oil Pump Cover
45 Bevel Pinion Front Spacer
46 Oil Pump Driven Gear Shaft
47 Mainshaft Center Bearing
48 Oil Pump Driven Gear
49 Mainshaft Center Bearing
Retainer
50 Oil Pump Drive Gear
51 Oil Pump Drive Shaft
52 Oil Pump Housing
53 Countershaft Rear Bearing
54 Outer Nut
55 Lock Washer
56 Countershaft
57 Inner Lock Nut
58 Countershaft Rear Bearing
Retainer
59 Countershaft 1st Speed Gear
Thrust Washer
60 Countershaft 1st Speed Gear
Bushing
61 Countershaft 1st Speed Gear
62 Countershaft Clutch Gear
63 Countershaft Sliding Clutch
64 Reverse Idler Drive Gear
65 Countershaft 2nd Speed Gear
66 Reverse Idler Sliding Clutch
67 Reverse Idler Driven Gear
68 Reverse Idler Shaft
69 3rd Speed Countershaft Gear
70 Magnetic Drain Plug
71 Countershaft Drive Gear
72 Spacer
73 Countershaft Gear Key
74 Drive Gear Retaining Washer
75 Countershaft Front Bearing
76 Bearing Retaining Washer
77 Countershaft Bearing
Retaining Nut
Legend for Figures 1 and 2
78 3rd and 4th Speed Sliding
Clutch
79 Transmission Main Case
80 Mainshaft Nut
81 Mainshaft Pilot Bearing
82 Bearing Retainer Gasket
83 Main Drive Gear Bearing
84 Oil Seal
85 Main Drive Gear
86 Main Drive Gear Bearing
Cap
87 Bearing Lock Nut
88 Lock Washer
89 Shims
90 Bearing Retainer
91 Clutch Housing
92 Nut Lock Washer
93 3rd and 4th Speed Clutch
Gear
94 3rd Speed Gear Bearings
95 Spacer
96 Poppet Ball
97 3rd Speed Gear
98 Plunger
99 3rd and 4th Speed Shift Fork
100 Spring
101 Mainshaft 2nd Speed Gear
102 3rd and 4th Speed Shift
Shaft
103 1st and 2nd Speed Sliding
Clutch
104 3rd and 4th Speed Shift
Finger
105 3rd and 4th Speed Shift
Lever
106 3rd and 4th Speed Gear
Thrust Collar
107 2nd Speed Gear Bearing
108 Bearing Spacer
109 1st and 2nd Speed Clutch
Gear
110 1st Speed Gear Bearings
111 Bearing Spacer
112 1st Speed Gear Thrust
Washer
113 Bevel Pinion Key
TP 4269 8
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