Page 73 of Automatic Transmission Parts Catalog 2005 by Alto Products Corp.
73
GENERAL MOTORS
HYDRAMATIC
TH400, 375 (3L80) 1964-95
TH425, 475 1966-78
ILL DESCRIPTION
YEARS
FRICTION
MODULE
STEEL
MODULE
OVERHAUL
KIT
BANNER
KIT
MASTER
KIT
KITS
KT Rebuilding Kit TH400
65-95
031752
031753
031800
031901LS
031901
KT Rebuilding Kit TH400 with Heg Frictions
65-95
031752C
031753
031800
TBA
TBA
KT Rebuilding Kit TH400 (short ring kit)
65-95
031752
031753
031800X
031901XLS
031901X
KT Rebuilding Kit TH425
66-78
031752
031753
031806
031905LS
031905
Specialty Kit with Powerpack
KT Rebuilding Kit TH400 with Intermediate Powerpack
65-95
031750PWR
031800
NA
031901PWR
FR ST
HI-PERFORMANCE RED EAGLER
KT Rebuilding Kit TH400 with Turbulator steels
65-95
031752HP
031753HP
031800HP
031901HPLS
031901HP
HI-PERFORMANCE with Powerpack
KT Rebuilding Kit TH400 with Turbulator steels and
65-95
031750AHPPWR
031800HP
NA
031901HPPWR
Intermediate POWERPACK
FR ST
ILL ALTO NO
REF NO DESCRIPTION
SPEC YEAR QTY NOTES
MISCELLANEOUS GASKETS KIT COMPONENTS
1G
031816
8655625
Gasket, Oil Pan TH400
Cork/Rub
65-95
1
N I 031816B
8625089
Gasket, Oil Pan TH425
Cork/Rub
66-78
1
N I 031820
8625031
Gasket, Sprocket Cover TH425
Cork/Rub
66-78
1
2F
031001
8623978
Gasket, Front pump to case
65-95
1
3F
031006
8623174
Gasket, Rear Servo
Metal
65-95
1
4F
010115B
6264903
O Ring, Modulator Electrical connector
65-95
2
N I 032003
3884683
Washer, Front Pump bolts
65-95
6-8
5A
031050
23016599
Lathe Cut, Front Pump to case
65-95
1
FRICTION CLUTCHES
6A
031700
8623483
Forward
.080
65-95
5
Tan 42T OD: 5.901" PL
6A
031702
8655619
Forward
.080
65-95
5
Tan 42T OD: 5.893" SM
6A
031716
23042197
Forward
.080
65-95
5
Heg 42T OD: 5.901" WF
7B
031700
8623483
Direct
.080
65-95
5
Tan 42T OD: 5.901" PL
7B
031702
8655619
Direct
.080
65-95
5
Tan 42T OD: 5.893" SM
7B
031716
23042197
Direct
.080
65-95
5
Heg 42T OD: 5.901" WF
8C
031704
8655620
Intermediate wave
.080
65-95
3
Tan 47T OD: 6.561" SM
8C
031714B203
NA
Intermediate wave
.080
65-95
3
Tan 47T OD: 6.561" WF
8C
031718
8655620
Intermediate flat
.090
65-95
3
Heg 47T OD: 6.561" SM
8C
031714-160
NA
Intermediate POWERPACK component
.060
65-95
AR
Tan 47T OD: 6.561" SM
HI-PERFORMANCE RED EAGLER
6A
031740
NA
Forward Direct
.080
65-95
10
Red 42T OD: 5.901" SM
6A
031740A
NA
Forward Direct
.061
65-95
AR
Red 42T OD: 5.901" SM
8C
031742
NA
Intermediate
.080
65-95
3
Red 47T OD: 6.561" SM
8C
031742A
NA
Intermediate
.060
65-95
AR
Red 47T OD: 6.561" SM
HI-PERFORMANCE UNIT PACKS (ONE Rebuild)
KT 031740UP5
NA
UNIT PACK Forward Direct
.080
65-95
1
5 RED EAGLER Friction
KT 031740AUP6
NA
UNIT PACK Forward Direct
.061
65-95
1
6 RED EAGLER Friction
KT 031742UP3
NA
UNIT PACK Intermediate
.080
65-95
1
3 RED EAGLER Friction
KT 031742AUP5
NA
UNIT PACK Intermediate
.060
65-95
1
5 RED EAGLER Friction
STEEL CLUTCHES
9A
031701
8623113
Forward wave
.068
64
5
12T ID: 4.585"
9A
031703
8623849
Forward flat
.077
65-95
4
12T ID: 4.585"
9A
031711
8625197
Forward
.090
68-95
4
12T ID: 4.575"
9A
031701A
NA
Forward selective
.060
65-95
AR
12T ID: 4.585"
12A
031707
8679940
Forward wave
.060
65-95
AR
12T ID: 4.585"
11B
031701
8623113
Direct wave
.068
64
5
12T ID: 4.585"
11B
031711
8625197
Direct
.090
68-95
4-5
12T ID: 4.575"
11B
031701A
NA
Direct selective
.060
65-95
AR
12T ID: 4.585"
12B
031707
8679940
Direct wave
.060
65-95
AR
12T ID: 4.585"
10A
031767D137
8680816
Forward Direct cushion spring belleville
.054
65-95
2
2T
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