Copyright © 1996 General Motors Corp. Foldout 7
AT 500, 1500 SERIES AUTOMATIC TRANSMISSIONS
A
1 – Nut,
3
⁄
8
-24 (6)
A
2 – Torque converter assembly (AT 543)
3 – Spacer retainer (6) (earlier models)
4 – Spacer (6)
5 – Torque converter cover assembly
6 – Self-locking nut,
5
⁄
16
-24 (24)
B
7 – Bearing race
8 – Thrust bearing assembly
9 – Bearing race
10 – Thrust bearing spacer (selective)
11 – Converter turbine assembly
12 – Rivet
13 – Torque converter turbine
14 – Torque converter turbine hub
15 – Torque converter stator and bearing assembly
16 – Torque converter stator assembly
17 – Stator front side plate
18 – Stator cam washer
19 – Stator
20 – Cam
21 – Stator cam washer
22 – Stator rear side plate
23 – Flat head rivet (6)
24 – Needle bearing assembly
25 – Freewheel roller race
26 – Freewheel roller (10)
27 – Freewheel roller spring (10)
28 – Bolt,
1
⁄
4
-20 x
5
⁄
8
inch (8)
C
29 – Lockstrip (4)
30 – Torque converter pump hub
31 – Gasket
32 – Needle bearing assembly
33 – Bearing race
34 – Sealring
35 – Torque converter pump assembly
36 – Special bolt,
5
⁄
16
-24 x 1.36 inch (24)
Torque lb ft N·m
A
34–40 46–54
B
19–23 26–31
C
9–11 12–15
Legend for Foldout 7
B
1 – Torque converter assembly
(AT 540, 542, 545, 1542, 1545)
2 – Oil pump and front support assembly
3 – Front oil seal
4 – Sealring
5 – Pump body and gear assembly
6 – Pump body assembly
7 – Bushing (prebored) (for service only)
8 – Pump body
9 – Pump driven gear
10 – Pump drive gear
11 – Bolt,
5
⁄
16
-18 x 1 inch (6) (8 on earlier models)
A
12 – Rubber coated washer (6) (8 on earlier models)
13 – Sealring
14 – Valve plug (earlier models)
15 – Pin (earlier models)
16 – Front support and bearing assembly
17 – Front support assembly
18 – Ground sleeve bushing*
19 – Ground sleeve
20 – Tapered expansion plug
21 – Front support
22 – Tapered expansion plug
23 – Roller bearing
24 – Snapring
25 – Spring stop
26 – Valve spring
27 – Main-pressure regulator valve
28 – Self-locking bolt,
5
⁄
16
-18 x 1
3
⁄
4
inch (3)**
A
29 – Self-locking bolt,
5
⁄
16
-18 x 1 inch (2)**
A
30 – Lockup valve (AT 1500 Series)
31 – Lockup valve spring (AT 1500 Series)
32 – Stop (AT 1500 Series)
33 – Pin (AT 1500 Series)
34 – Self-locking bolt,
5
⁄
16
-18 x 1
3
⁄
4
inch (9)
B
35 – Rubber coated washer (9)
36 – Gasket
37 – Thrust washer (selective)
38 – Hook-type sealring (2)
39 – Self-locking bolt, M6-1 (6)
C
***
40 – Rubber-coated flat washer (6)
* Not present on AT 1500 Series models
** For later models, all five
5
⁄
16
-18 bolts are 1
3
⁄
4
inch long
*** Retarder models only
Torque lb ft N·m
A
15–20 20–27
B
13–16 18–22
C
9–10 12–14
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