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C6 Exploded & Hydraulic Schematic
IF THE IMAGE IS TOO SMALL, click it.
1 7902 Torque Converter
2 87650-S Converter Drain Plug, 1/8-27, Dryseal Tapered Thread
3 7017 Input Shaft
4 Front Pump Seal (Part of 7A103)
5 Front Pump Bushing (Part of 7A103)
6 Front Pump Body (Part of 7A103)
7 58619-S2 Bolt
8 Pump Driven Gear (Part of 7A103)
9 Pump Drive Gear (Part of 7A103)
10 Front Pump Support (Part of 7A103)
11 20346-S8 Hex-Head Bolt (Part of 7A103)
12 7A103 Front Pump Assembly
13 7D014 Thrust Washer, No. 1
14 7A248 Front Pump Seal, Large
15 7D025 Intermediate Brake Drum Seal (2 Req'd)
16 7A136 Pump Gasket
17 7D029 Intermediate Brake Band Strut
18 7D034 Intermediate Band
19 7D430 Intermediate Band Anchor Strut
20 7D044 Intermediate Brake Drum
21 7E056 Direct Clutch Piston Inner Seal
22 7A548 Direct Clutch Piston Outer Seal
23 7A262 Direct Clutch Piston
24 7B488 Direct Clutch Piston Spring (10 Req'd)
25 7A527 Direct Clutch Piston Spring Retainer
26 377136-S Direct Clutch Piston Spring Retainer Ring
27 7B442 Direct Clutch External Spline Plate (Steel)
28 7B164 Direct Clutch Internal Spline Plate (Friction)
29 7B066 Direct Clutch Pressure Plate
30 7D248 Intermediate Brake Drum Thrust Washer No. 2
31 377126-128S, 377437, 377444-S Direct Clutch Pressure Plate Retaining Ring
32 7D019 Forward Clutch Cylinder Seal (2 Req'd)
33 7A360 Forward Clutch Cylinder
34 7A548 Forward Clutch Piston Outer Seal
35 7A548 Forward Clutch Piston Inner Seal
36 7A262 Forward Clutch Piston
37 7D256 Forward Clutch Piston Spring Ring
38 7B070 Forward Clutch Piston Disc Spring
39 377127-S Retaining Ring
40 7B066 Forward Clutch Front Pressure Plate
41 7E085 Forward Clutch Wave Spring
42 7B442 Forward Clutch External Spline Plate (Steel)
43 7B164 Forward Clutch Internal Spline Plate (Friction)
44 7B066 Forward Clutch Rear Pressure Plate
45 377127-S, 377437-S, 377444-S, 386841-2-S Forward Clutch Pressure Plate Retaining Ring
46 7D090 Forward Clutch Hub Thrust Washer No. 4
47 377132-S Retaining Ring
48 7B067 Forward Ring Gear Hub
49 7D392 Forward Ring Gear
50 7A166 Forward Planet Carrier Thrust Washer No. 5
51 7D236 Forward Clutch Hub Thrust Race
52 7D234 Forward Clutch Hub Thrust Bearing Assembly No. 3 and No. 6 (2 Req'd)
53 7D235 Forward Clutch Hub Thrust Race
54 7A398 Forward Planet Carrier Assembly
55 7D063 Sun Gear
56 377300-S Front Retaining Ring
57 7D064 Input Shell
58 7D066 Input Shell Thrust Washer
59 377300-S Rear Retaining Ring
60 377155-S Retaining Ring
61 7D423 Reverse Planet Carrier Thrust Washer No. 7 and No. 8
62 7D006 Reverse Planet
63 387031-S5 Retaining Ring
64 7A153 Output Shaft Ring Gear
65 7D164 Output Shaft Hub
66 377132-S Output Shaft Hub Retaining Ring
67 7D422 Output Shaft Hub Thrust Bearing No. 9
68 7B067 Reverse Clutch Hub
69 7A089 One-Way Clutch Assembly
70 385044-S Reverse Clutch Retaining Ring
71 7B066 Reverse Clutch Pressure Plate
72 7B164 Reverse Clutch Internal Spline Plate (Friction)
73 7B442 Reverse Clutch External Spline Plate (Steel)
74 7E085 Reverse Clutch Wave Spring
75 7D403 Reverse Clutch Piston Outer Seal
76 7D404 Reverse Clutch Piston Inner Seal
77 One-Way Clutch Race, Inner (Part of 7D164)
78 7D406 Reverse Clutch Retainer and Spring Assembly
79 7D402 Reverse Clutch Piston
80 7D167 One-Way Clutch Inner Tag Attaching Bolt (5 Req'd)
81 7005 Case
82 7B368 Output Shaft Thrust Washer No. 10
83 7A233 Output Shaft Park Gear
84 7C232 Fluid Distributor Sleeve
85 7D000 Fluid Distributor Tube, Inlet
86 7D000 Fluid Distributor Tube, Outlet
87 20386-S8 Bolt (4 Req'd)
88 387035-S5 Retaining Ring
89 7D011 Governor Housing Seal Ring (3 Req'd2 Teflon?, 1 Cast Iron)
90 7D220 Governor Fluid Collector Body
91 7C063 Governor
92 34805-S8 Bolt (4 Req'd)
93 378259 Cup Plug
94 7060 Output Shaft
95 7086 Extension Housing Gasket
96 7A039 Extension Housing (4x2)
97 7A034 Extension Housing Bushing
98 7052 Extension Housing Fluid Seal
99 380207-S2 Bolt (2 Req'd) (4x2 Only)
100 7G496 Switch Wiring Harness Retainer (4x2)
101 57621-S2 Screw and Washer Assembly, 1/4-20 x .62
102 7H183 Extension Housing Plug (Used to Plug Speedometer Gear Hole)
103 380209-S Bolt (4 Req'd) (4x2)
104 7G496 Vacuum Tube Retainer (4x2)
105 7A039 Extension Housing (4x4)
106 7G495 Vacuum Tube Retainer (4x4)
107 380209-S Bolt (4 Req'd) (4x4)
108 7G496 Switch Wiring Harness Retainer (4x4)
109 58642-S2 Bolt (2 Req'd) (4x4 Only)
110 57633-S2 Bolt (4 Required)
111 Transmission Model Identification Tag (Not Serviced)
112 7D027 Intermediate Band Servo Cover
113 7D024 Intermediate Band Servo Cover Piston Seal
114 7D026 Intermediate Band Servo Cover Gasket
115 7D021 Intermediate Band Servo Piston and Rod Assembly
116 7D028 Intermediate Band Servo Piston Spring
117 7D273 Fluid Tube Connector (2 Required)
118 87650-S Pipe Plug, 1/8-27 Dryseal (Used in Case for Measuring Throttle Valve Pressure)
119 7034 Vent
120 7E206 Intermediate Band Servo Lever Shaft Retainer
121 7D433 Intermediate Band Actuating Lever Shaft
122 7330 Intermediate Servo Band Lever
123 7D071 Parking Pawl Shaft
124 7A441 Parking Pawl
125 7D070 Parking Pawl Return Spring
126 379058-SScrew and Washer Assembly
127 7D419 Park Rod Guide Plate (Serviced in Kits Only)
128 56119-S Hex Flange Head Bolt, 5/16-18 x .82 (7F013, 7F006 and 7A377 to 7005)
129 7F013 Vacuum Diaphragm Heat Shield
130 7A377 Throttle Valve Control Diaphragm
131 7F006 Vacuum Diaphragm Clip
132 7A380 Throttle Control Valve Rod
133 7D080 Primary Throttle Valve
134 33798-S8Nut, 5/16
135 34806-S7Hex Lockwasher
136 7A394 Downshift Control Outer Lever
137 Bolt 55651-S2
138 Park/Neutral Position Switch 7A247
139 Throttle Control Outer Lever Seal 386078-S
140 Manual Control Lever 7A256
141 Manual Control Lever Fluid Seal 7B498
142 Lock Nut 375185-S100
143 Adjusting Screw 7A178
144 1/4-20 x .50 Hex Flg. Bolt 56501-S2
145 Manual Valve Detent Lever Spring 7A261
146 Parking Plate Shaft Plug 6572
147 Parking Plate Shaft 7D418
148 Parking Plate Torsion Spring 7D417
149 Parking Rod Support Plate 7D414
150 1/8-27 Pipe Plug, Dryseal Tapered Thread (Used in Case for Measuring Pump Pressure) 87650-S
151 Parking Pawl Actuating Rod (Serviced in Kits Only) 7D411
152 Downshift Detent Lever 7D261
153 9/16-18 Hex Lock Nut 380525-S
154 Manual Valve Detent Lever (Serviced in Kits Only) 7A115
155 Shift Valve Plate (Not Serviced Separately)
156 Gear Selector Valve Rod 7326
157 Downshift Lever Stop (Part of 7A100) 7D075
158 Throttle Pressure Booster Valve Plate (Not Serviced Separately)
159 Throttle Pressure Valve Secondary Spacer 7D227
160 Upper Control Valve Body (Part of 7A100)
161 Main Control Valve Body Reinforcement Plate (Part of 7A100)
162 Main Control Valve Body Separator Plate Reinforcement (Part of 7A100)
164 Main Control Pump Inlet Screen 7E387
165 Valve Body Separating Plate (Part of 7A100)
166 Valve Body Separating Plate Gasket 7D100
167 Lower Control Valve Body (Part of 7A100)
168 Fluid Pan Screen Gasket 7E062
169 Fluid Screen 7A098
170 10-24 x 1-5/8 Inch Bolt, Hex-Head (2 Req'd) 357050-S
171 Lower Main Control Valve Body Suction Tube 7A102
172 10-24 x 1-1/4 Inch Bolt, Hex-Head (6 Req'd) 337051-S
173 Main Control Valve Body 7A100
174 Fluid Pan Gasket 7A191
175 Transmission Fluid Pan (Shallow 4x2) (Deep 4x4) 7A194
176 Bolt 378782-S
177 Vacuum Diaphragm O-Ring 87031
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THE DANGER OF CHANGING THE ATF
I'm no slushbox expert, but this is how I understand it:
A) Starting with a good trans & the right fluid, over time, debris is generated in the trans due to normal wear & contamination. The fluid contains detergent additives that keep this debris suspended in the fluid until it can flow back to the filter to be removed.
B) But the fluid only contains SO MUCH detergent. So if it's not changed on-schedule, the debris doesn't get suspended, and it settles out all over the trans. But this alone doesn't cause any immediate problems, which is why so many people neglect the trans fluid for so long.
C) Eventually, someone realizes how old the fluid is, and changes it with fresh detergent-rich fluid. This begins to break up the deposits, but it also loosens large chunks, which can block up the valve body's fine passages & ports, causing MAJOR damage.
D) From what I've seen, there are 3 possible ways to avoid this damage:
1) change the fluid on the recommended schedule
2) rebuild the trans
3) change the filter & fluid once, using decent aftermarket ATF. It's also a good time to add the drain plug kit. Then drive 50-200 miles to break up most of the deposits. Then change the fluid & filter again, using MotorCraft Mercon. If the trans goes out after that, it was going out anyway.
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