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Home >> Lincoln >> 2019 >> Nautilus Base, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Automatic Transmission - 8-Speed Automatic Transmission - 8F57 (1 Of 2)) >> Description And Operation >> Transmission Description

Transmission Description

WARNING: This page is about a different variant/trim than selected.

Disassembled Views 

GFD428187Courtesy of FORD MOTOR COMPANY
GFD428188Courtesy of FORD MOTOR COMPANY
GFD428189Courtesy of FORD MOTOR COMPANY
GFD428190Courtesy of FORD MOTOR COMPANY
Item Part Number Description
1 7902 Torque converter
2 7A443 Converter housing bolt (17 required)
3 7F401 Converter hub seal
4 704941 Converter housing studbolt
5 7976 Torque converter housing
6 4067 Differential bearing shim
7 4222 Differential bearing cup
8 4221 RH differential bearing
9 7978 Baffle
10 500215 Bolt
11 7F465 Differential
12 4222 Differential bearing cup
13 7H367 Transfer shaft bearing shim
14 7H344 Transfer shaft bearing cup
15 7H338 Transfer shaft bearing
16 7059 Snap ring
17 7H349 Transfer shaft gear
18 7H346 Transfer shaft
19 7A233 Transfer shaft park gear
20 500215 Bolt
21 7J387 Reservoir
22 7H345 Funnel
23 500215 Bolt
24 7D419 Park rod guide
25 7D071 Park pawl shaft
26 7D412 Park pawl support pin
27 7G101 Park pawl support
28 7D070 Spring
29 7A441 Park pawl
30 7P458 Flange case seal
31 7005 Case
32 7G342 Transmission model identification tag
33 7B148 Transmission service identification tag
34 7C493 Manual shaft
35 7F337 Manual shaft seal
36 7A256 Manual shaft lever
37 712713 Nut
38 7B301 Transmission fluid filter
39 1S177 Halfshaft seal
40 7H103 Output speed sensor
41 7L252 Spring
42 500102 Bolt
43 7D438 Support
44 7H557 Transmission range sensor
45 7C257 Manual shaft tube
46 7D410 Park pawl rod
47 7J069 Transmission wire harness
48 7B067 Output planetary carrier hub
49 7D090 Thrust bearing
50 7D064 Output sun gear and shell assembly
51 7A262 A (1, 2, 3, 4, 5) clutch piston
52 7B070 A (1, 2, 3, 4, 5) clutch piston return spring
53 7H365 A (1, 2, 3, 4, 5) clutch piston snap ring
54 7E457 A (1, 2, 3, 4, 5) clutch wave plate
55 7E314 A (1, 2, 3, 4, 5) clutch steel plate (2 required)
56 7J402 A (1, 2, 3, 4, 5) clutch anti drag spring (2 required)
57 7E311 A (1, 2, 3, 4, 5) clutch friction plate (2 required)
58 7J406 Pressure plate
59 7N169 Snap ring
60 7N473 Output carrier
61 7H375 Thrust bearing
62 7F241 Thrust bearing
63 7D491 Input carrier
64 7D063 Sun gear
65 7C096 Thrust bearing
66 7G177 Thrust bearing
67 7G224 Reaction/overdrive carrier
68 7D063 Reaction sun gear
69 7P030 Electric one-way clutch
70 7G148 Snap ring
71 7B066 F (2, 8) clutch reaction plate
72 7E313 F (2, 8) clutch friction plate (2 required)
73 7G474 F (2, 8) clutch steel plate (2 required)
74 7P173 F (2, 8) clutch wave spring
75 7D234 Thrust bearing
76 7D062 F (2, 8) clutch sun gear and shell
77 7B066 F (2, 8) and C (3, 7) clutch pressure plate
78 7B164 C (3, 7) clutch friction plate (3 required)
79 7B442 C (3, 7) clutch steel plate (3 required)
80 7G159 C (3, 7) clutch wave plate
81 7A019 Reaction sun gear and shell
82 7D483 Snap ring
83 7B066 B (4, 6, R) clutch reaction plate
84 7B164 B (4, 6, R) clutch friction plate (4 required)
85 7B442 B (4, 6, R) clutch steel plate (4 required)
86 7E085 B (4, 6, R) clutch pressure plate
87 7M157 Snap ring
88 7B066 E (5, 6, 7, 8) clutch reaction plate
89 7B164 E (5, 6, 7, 8) clutch steel plate (6 required)
90 7B442 E (5, 6, 7, 8) clutch friction plate (6 required)
91 9D090 Thrust bearing
92 7H351 E (5, 6, 7, 8) clutch hub
93 7C096 Thrust bearing
94 7C122 Snap ring
95 7H360 E (5, 6, 7, 8) clutch balance piston
96 7H561 Spring assembly
97 7A548 E (5, 6, 7, 8) clutch inner piston seal
98 7A262 E (5, 6, 7, 8) clutch piston
99 7A548 E (5, 6, 7, 8) clutch piston seal
100 7A548 E (5, 6, 7, 8) clutch outer piston seal
101 7F213 Input shaft
102 7G124 B (4, 6, R) and E (5, 6, 7, 8) clutch hub
103 7A258 B (4, 6, R) clutch piston seal
104 7C099 B (4, 6, R) clutch piston seal inner
105 7C099 B (4, 6, R) clutch piston seal inner
106 7G298 B (4, 6, R) clutch spring assembly
107 7A262 B (4, 6, R) clutch piston
108 7F283 B (4, 6, R) clutch cylinder
109 7C122 Snap ring
110 7C122 Snap ring
111 7B070 C (3, 7) clutch piston return spring
112 7D402 C (3, 7) clutch piston
113 7D483 Snap ring
114 7F222 Spring
115 7E005 F (2, 8) clutch piston
116 7Z022 Support
117 7H026 Thrust bearing
118 7B343 Cover gasket
119 7222 Cover
120 7A443 Bolt (13 required)
121 7M101 Turbine shaft speed sensor
122 7Z490 Seperator plate
123 7A100 Main control
124 719334 Bolt (14 required)
125 714165 Bolt (6 required)
126 7F396 Main control cover gasket
127 7G004 Main control cover
128 714629 Studbolt (8 required)
129 500215 Bolt (8 required)
130 7G099 Drive sprocket thrust washer
131 7G273 Driven sprocket thrust washer
132 7G249 Chain and sprockets
133 7A108 Stator support assembly
134 500224 Bolts (9 required)
135 7D090 Thrust bearing
136 7J135 Seal
137 7P086 Start/stop transmission fluid pump
138 7A098 Transmission fluid filter
139 7A103 Transmission fluid pump
140 500215 Bolt (3 required)
141 7A248 Seal

Component Location 

GFD428191Courtesy of FORD MOTOR COMPANY
Item  Description 
1 Main control
2 A (1, 2, 3, 4, 5) clutch
3 F (2, 8) clutch
4 C (3, 7) clutch
5 Electric Selectable One-Way (SOWC) Clutch
6 B (4, 6, R) clutch
7 E (5, 6, 7, 8) clutch
8 Reaction/Overdrive carrier
9 Input carrier
10 Output carrier
11 Final drive carrier and differential assembly
12 Differential transfer drive gear
13 Input shaft assembly and direct/overdrive clutch hub
14 Torque converter
15 Differential transfer driven gear
16 Differential drive pinion gear
17 Park gear