Page 44 of Automatic Transmission Parts Catalog 2005 by Alto Products Corp.
44
GENERAL MOTORS
HYDRAMATIC
TH125, TH125C (3T40)
1980-On
ILL ALTO NO
REF NO DESCRIPTION
SPEC YEAR QTY NOTES
OEI Original Equipment Improvements
KT 048985
SKR 125
Shift KitR corrects 3-2 clunk
80-On
1
Transgo
BANDS
14A
048950
8631030
Intermediate (Flex)
1.490
80-81
1
14A
048951
8635538
Intermediate (Flex
1.750
82-On
1
HI-PERFORMANCE RED EAGLER
14A
048961
NA
Intermediate (Flex
1.750
82-On
1
FILTERS
KT FK048940
8652910
Filter Kit
80-On
1
15F
048940
8666665
Filter (with seal)
80-On
1
METAL CLAD SEALS
16E
048400
8685515
Front Pump
VamacR
80-On
1
17F
048401
24202835
Axle (Left Right)
80-On
2
NI 048402
8637588
Manual Lever
80-83
1
NI 048402A
8644709
Manual Lever
84-On
1
SEALING RINGS
KT 048600
NA
Sealing Ring Kit Combo (17T)
80-On
1
18F
048100
NA
1-2 Accumulator piston
Metal
80-On
1
18F
048100A
8631895
1-2 Accumulator piston
Teflon
80-On
1
19A
048101
8652535
Driven Sprocket support
Teflon
80-On
3
19A
048101X
NA
Driven Sprocket support
Metal
80-On
3
20E
048102
8631211
Turbine Shaft (scarf cut)
Teflon
80-81
1-3
20E
048110
8643058
Turbine Shaft (solid) front
Teflon
82-On
2
will retro-fit
21E
048111
8637170
Turbine Shaft (solid) middle
Teflon
82-On
1
22B
048103
8652535
Input Shaft
Teflon
80-On
2-3
22B
048103X
NA
Input Shaft
Metal
80-On
2-3
23F
048104
8631468
Intermediate Servo piston inner (1.260")
Teflon
80-81
1
23F
048114
8631469
Intermediate Servo piston inner (1.500")
Teflon
82-85
1
23F
048109
8631470
Intermediate Servo piston inner (1.675")
Teflon
82-85
1
24F
043109
8631473
Intermediate Servo piston outer
Teflon
80-85
1
24F
043109X
NA
Intermediate Servo piston outer
Metal
80-85
1
25F
048106
8631105
Intermediate Servo apply pin
Teflon
80-On
1
26E
048107
8632588
Governor
Teflon
80-On
1
NI 048108
8631417
Pump Slide to cover
Teflon
80-On
1
SNAP RINGS
KT 048680
NA
Snap Ring Kit
80-On
1
28C
048250-093
8631602
Sun Gear to Shell Selective
.093/2.36
80-On
AR
Pink
28C
048250-099
8631603
Sun Gear to Shell Selective
.099/2.51
80-On
AR
Brown
28C
048250-106
8631604
Sun Gear to Shell Selective
.106/2.69
80-On
AR
LT. Blue
28C
048250-113
8631605
Sun Gear to Shell Selective
.113/2.87
80-On
AR
White
28C
048250-120
8631606
Sun Gear to Shell Selective
.120/3.00
80-On
AR
Yellow
28C
048250-127
8631607
Sun Gear to Shell Selective
.127/3.23
80-On
AR
Green
28C
048250-134
8631608
Sun Gear to Shell Selective
.134/3.40
80-On
AR
Orange
28C
048250-140
8631609
Sun Gear to Shell Selective
.140/3.56
80-On
AR
29B
048251-075
8631258
Input shaft retainer (Driven Sprocket)
.075/1.90
80-On
AR
White
29B
048251-083
8631259
Input shaft retainer (Driven Sprocket)
.083/2.11
80-On
AR
Blue
29B
048251-091
8631260
Input shaft retainer (Driven Sprocket)
.091/2.31
80-On
AR
Red
29B
048251-099
8631261
Input shaft retainer (Driven Sprocket)
.099/2.51
80-On
AR
Yellow
29B
048251-107
8631262
Input shaft retainer (Driven Sprocket)
.107/2.72
80-On
AR
Green
30A
048252
8652055
Forward Direct clutch retainer
80-On
2
31D
062253
11501326
Final drive (spiral ring)
80-On
1
BUSHINGS
KT 048625
NA
Bushing Kit
80-On
1
32E
048200
8631907
Converter Hub
80-81
1
32E
048200A
8637905
Converter Hub
82-On
1
33A
043201
8628915
Drive Sprocket support to turbine shaft
80-On
1
34F
048202
8631119
Output Shaft
80-On
1
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