4R70W Automatic Transmission — Disassembled View



Item Part Number Description
1 7902 Converter assembly (model dependent)
2 391855-S100 Plug — converter drain — 1/8-27 Dryseal (model dependent)
3 7A103 Pump assembly — front
4 7A248 Seal assembly — front pump
5 7A248 Seal — front pump
6 7B258 Bushing — front pump
7 N605789-S100 Bolt — M8-1.25 x 35 hex head (7-attaches 7A103 to 7005)
8 7A106 Body assembly — front pump (part of 7A103)
9 7A136 Gasket — front pump
10 7H169 Gear — pump inner gerotor (part of 7A103)
11 7H169 Gear — pump outer gerotor (part of 7A103)
12 7A108 Support assembly — front pump
13 N605787-S Bolt — M8-1.25 x 25 hex flange head (5-attaches 7A108 to 7A103)
14 7D014 Washer — front pump support thrust — select fit No. 1
15 7D020 Seals — reverse clutch cylinder (2 req'd)
16 7D019 Seals — forward clutch cylinder (2 req'd)
17 7F225 Seal — intermediate clutch piston inner
18 7F224 Seal — intermediate clutch piston outer
19 7E005 Piston kit — intermediate clutch
20 7A609 Intermediate clutch anti-rattle clip (model dependent)
21 7B442 Plate — intermediate clutch external spline (select fit) (steel)
22 7B164 Plate assembly — intermediate clutch internal spline (friction)
23 7B066 Plate — intermediate clutch pressure
24 7F196 Band assembly — overdrive
25 391267-S Ring —3-21/64 retains type SU external (retains 7F262 to 7F215)
26 7F271 Clutch assembly —intermediate one-way clutch
27 7D044 Drum assembly — reverse clutch
28 7D403 Seal — reverse clutch piston outer
29 7D402 Piston assembly — reverse clutch
30 7D404 Seal reverse clutch piston inner
31 7D256 Ring — reverse clutch piston pressure
32 7B070 Spring — reverse clutch piston return
33 7A577 Spring — reverse clutch piston spring
34 7B066 Plate — reverse clutch front pressure
35 7B164 Plate — reverse clutch internal spline (friction)
36 7B442 Plate — reverse clutch external spline (steel)
37 7B066 Plate — reverse clutch rear pressure
38 7B497 Seals — input shaft (2 req'd)
39 7D483 Retainer — reverse clutch pressure plate — (select fit)
40 7A166 Bearing and race assembly — forward clutch No. 2
41 7F207 Cylinder and input shaft assembly — forward clutch
42 7A548 Seal — forward clutch piston outer
43 7C099 Seal — forward clutch piston inner
44 7A262 Piston — forward clutch
45 7A480 Spring — forward clutch piston return
46 7A527 Retainer return spring — forward clutch
47 388099-S Snap ring — retaining — 1-59/64 (retains 7A529 in 7F207)

79 7A153 Gear — output shaft ring
80 7F283 Cylinder assembly — direct clutch
81 7F274 Seals — output shaft small — direct clutch (2 req'd)
82 7F240 Bearing and race assembly — direct clutch outer No. 8
83 7060 Shaft assembly — output (model dependent)
84 7F273 Seal — output to case shaft large (3 req'd)
85 87054-S94 Seal — O-ring (piloted output shaft only) (model dependent)
86 7D164 Hub — output shaft
87 97713-S Snap ring — 1-13/16 retaining (retains 7D164 to 7060)
88 7C122 Snap ring — retaining (retains 7D164 to 7A153)
89 7025 Bushing — rear case
90 7F242 Bearing and race assembly — case rear No. 9
91 7005 Case assembly
92 7086 Gasket — extension (model dependent)
93 N803747-S1101 Bolt — M8-1.25 x 30 (6-attaches 7A039 to 7005) (model dependent)
94 7A039 Extension housing assembly (model dependent)
95 — Bushing — extension housing (part of 7A039)
96 7052 Seal assembly — extension housing (model dependent)
97 390318-S100 Pipe plug — 1/8-27 Dryseal tapered (5 req'd)
98 7F295 Pin — overdrive band anchor
99 388142-S Pin — reverse band anchor (part of 7005)
100 7034 Vent assembly — case
101 N605771-S427 Bolt — M6-1.0 x 14 hex head (attaches output shaft speed sensor to case)
102 7H103 Sensor assembly — transmission output shaft speed
103 N811757-S100 Seal — 14.0 x 1.78 O-ring (2 req'd)
104 N806933-S102 Bolt and washer assembly — M6-1.0 x 25 mm (1 in) (2-attaches 7F293 to 7005) (model dependent)
105 7F293 Sensor — transmission range
106 7A256 Lever assembly — manual control (model dependent)
107 7H296 Link assembly — manual control (model dependent)
108 7C493 Shaft — transmission manual control lever (model dependent)
109 N808737-S427 Nut — M10-1.5 (attaches 7A256 to 7C493)
110 7B498 Seal assembly — manual control lever
111 373907-S2 Nut — 1/4 spring (retains identification tag to 7000)
112 7B148 Tag — identification (part of 7005)
113 7D273 Connector assembly — fluid tube (2 req'd)
114 7N171 Plug — converter housing access
115 7B210 Pin — manual lever shaft retainer
116 391131 Seal — 0.426 x 0.070 O-ring
117 N805862-S Seal — 14.0 x 1.78 O-ring
118 7G383 Solenoid valve — transmission pressure control
119 7A441 Pawl — parking pawl
120 7D071 Shaft — parking pawl
121 7D419 Cup — park rod guide (part of 7A039)
122 7D070 Spring — parking pawl return
123 7A232 Rod assembly — park pawl actuating
124 7A115 Lever assembly — manual valve detent lever
125 N800287-S536 Nut — M14 x 1.5 hex intermediate detent lever (attaches 7A115 to 7A256)
126 7H188 Piston assembly — overdrive servo
127 7F201 Spring — overdrive servo piston
128 7F203 Rod — overdrive servo actuating (part of 7H188)
129 7H179 Washer — backup overdrive servo (part of 7H188)
130 7G277 Spring — overdrive cushion spring (part of 7H188)
131 7F200 Piston assembly — overdrive servo (part of 7H188)
132 97411-S Ring — retaining (part of 7H188)
133 7384 Ring — 2.85 retaining type TVP "H" internal (retains 7H188 to 7005)
134 7D031 Spring — reverse band servo piston
135 7D189 Piston assembly — reverse band servo
136 7D036 Cover assembly — reverse band servo piston
137 388215-S100 Retaining ring internal — 3-13/16
138 7H292 Piston — 2-3 accumulator (bonded seals)
139 7F285 Spring — 2-3 shift accumulator piston (model dependent)
140 7B264 Retainer — 2-3 shift accumulator spring
141 7F284 Spring — 1-2 shift accumulator (model dependent)
142 7F251 Piston — 1-2 shift accumulator (bonded seals)
143 7F284 Spring — 1-2 shift accumulator
144 7G326 Nested spring — 1-2 (inner spring) (vehicle dependent)
145 7F247 Cover and seal assembly — 1-2 accumulator
146 7384 Ring — 2-1/16 retaining type HU internal (retains 7H300 to 7005)
147 N807178-S1000 Bolt — M6-1.0 x 18 hex head (12-attaches reinforcing plate to valve body)
148 7F282 Plate — valve body reinforcing (part of 7A100)
149 7C155 Gasket — valve body separator upper
150 7A008 Plate — control valve body separator (part of 7A100)
151 7D100 Gasket — valve body separator lower
152 7D174 Valve — converter drainback
153 7A091 Body assembly — main control
154 7H173 Gasket — valve body cover plate
155 7C034 Plate — valve body cover (part of 7A100)
156 N807178-S1000 Bolt — M6-1.0 x 18 hex head (11-attaches 7C034 to 7A100 (part of 7A100)
157 7A100 Control assembly — main (model dependent)
158 7A098 Filter and seal assembly — fluid
159 7A191 Gasket — transmission pan
160 7A194 Pan — transmission
161 N605785-S1036 Bolt — M8-1.25 x 18 hex flange head (14-attaches 7A194 to 7005)
162 7L027 Magnet — ceramic case (part of 7A194)
163 N808947-S1300 Bolt — M8-1.25 x 46 hex shoulder pilot (2-attaches 7C034 to 7A100)
164 N807179-S1000 Bolt — M6-1.0 x 52 hex flange head (12-attaches 7A100 to 7005)
165 7H111 Retainer — solenoid
166 7E195 Ball — 1/4 diameter coast booster valve shuttle (8 req'd)
167 7H187 Screen — solenoid pressure supply
168 N800670-S1000 Bolt — M6-1.0 x 40 hex flange head (13-attaches 7A100 to 7005)
169 7E332 Spring assembly — manual valve detent
170 7Z276 Seal — 0.864 x 0.070 O-ring (2 req'd)
171 7G276 Bulkhead assembly — wiring connector
172 7G276 Bulkhead assembly — connector (molded lead frame)
173 7Z484 Seal — 6.07 x 1.70 O-ring (2 req'd)
174 7G484 Solenoid valve — transmission shift
175 7G136 Solenoid valve — transmission torque converter clutch
176 N807178-S1000 Bolt — M6-1.0 x 16 hex head (retains 7D136 and 7G484 to 7A100)
177 7Z136 Seal — 0.489 x 0.070 O-ring
178 7Z484 Seal — 0.176 x 0.070 O-ring
A — Intermediate clutch assembly
B — Intermediate one-way clutch
C — Reverse clutch assembly
D — Forward clutch assembly
E — Direct clutch assembly

Had to shorten it a bunch, but its part 83, and 94 that makes a difference. If your extension housing fits, and its the right length, I would say, ok.

the sad part is I have the complete diagram and can look as I read! LOL