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Home >> Buick >> 1992 >> Roadmaster Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul & Testing - 700-R4/4L60 >> Transmission Disassembly >> 2-4 Band & Input Gear Set

2-4 Band & Input Gear Set

  1. Remove band anchor pin from case. See Fig 1 . Remove 2-4 band assembly from case. Remove input sun gear. See Fig 2 .
    CAUTION: Output shaft must be held in place when removing input carrier retaining ring.
  2. Install Output Shaft Support (J-29837) on output shaft. See Fig 3 . Remove input carrier to output shaft retaining ring. Remove input carrier. Remove output shaft. Remove input carrier thrust washer from reaction carrier shaft.
Fig 1: Exploded View of 4L60 Transmission External Components
G92H12580Courtesy of GENERAL MOTORS CORP.
LEGEND FOR FIGURE 37

Item No. Description
1 Converter Assembly
2 Oil Seal
3 Oil Pump Body Bushing
4 Stator Shaft Bushing
5 Oil Pump
6 Pump Cover-To-Case Gasket
7 Transmission Case
8 Vent Assembly
9 Oil Cooler Pipe Connector
10 Retaining Ring
11 "O" Ring
12 2-4 Servo Cover
13 4th Apply Piston
14 Oil Seal Ring
15 Retainer Ring
16 Washer
17 Spring
18 Servo Piston Housing
19 2nd Apply Piston
20 Servo Cushion Spring
21 Servo Spring Retainer
22 Piston Pin
23 Servo Return Spring
24 Case Plug
25 Electrical Connector
26 Seal
27 Extension Housing
28 Bushing
29 Speedometer Gear Retainer
30 Speedometer Gear Assembly
31 Speedometer Gear
32 Speed Sensor
33 Governor Cover
34 Governor Cap
35 Governor
36 Pin
37 Retaining Pin
38 Driven Gear
39 Plug
40 Screen
41 Retainer & Ball Assembly
42 3-4 Accumulator Piston
43 3-4 Accumulator Spring
44 Spacer Plate
45 Check Ball
46 Band Anchor Pin
47 Case Bushing
48 Stator Shaft Bushing
49 Seal Retainer
50 Solenoid
51 Gasket
52 Carbon Ball
53 Throttle Lever Link
54 Bracket Assembly
55 Valve Body
56 Filter
57 Oil Pan
58 Magnet
59 Solenoid Wire Conduit
60 Detent Spring
61 Clip
62 Temperature Switch
63 Accumulator Cover
64 1-2 Accumulator Piston
65 1-2 Accumulator Spring
66 Tube Clamp
67 Oil Tube
68 Ball
69 Auxiliary Valve Body
Fig 2: Exploded View of 4L60 Transmission Internal Components
G92I12581Courtesy of GENERAL MOTORS CORP.
LEGEND FOR FIGURE 38

Item No. Description
1 Thrust Washer
2 2-4 Band
3 Bushing
4 Reverse Input Clutch Housing
5 Piston
6 Seal
7 Spring Assembly
8 Retainer Ring
9 Belleville Plate
10 Clutch Assembly
11 Backing Plate
12 Retaining Ring
13 Bearing Assembly
14 Check Valve
15 "O" Ring
16 Oil Seal
17 Cup Plug
18 Input Shaft Housing Assembly
19 Clutch Boost Spring Assembly
20 Check Ball
21 3-4 Clutch Apply Ring
22 Retainer & Ball Assembly
23 Forward Clutch Housing
24 Snap Ring
25 Overrun Clutch Assembly
26 Overrun Clutch Hub
27 Sprag Retainer Rings
28 Sprag Assembly
29 Forward Clutch Race
30 Sprag Retainer & Race
31 Forward Clutch Apply Plate
32 Waved Plate
33 Forward Clutch Assembly
34 Clutch Retainer Plate
35 3-4 Clutch Apply Plate
36 3-4 Clutch Assembly
37 Input Sun Gear
38 Input Carrier Assembly
39 Input Internal Gear
40 Reaction Carrier Shaft
41 Reaction Sun Gear Shell
42 Reaction Sun Gear
43 Low-Reverse Clutch Race
44 Low-Reverse Roller Clutch
45 Support
46 Reaction Carrier Assembly
47 Oil Deflector
48 Low-Reverse Clutch Assembly
49 Spacer Plate
50 Internal Reaction Gear
51 Internal Reaction Gear Support
52 Retainer Spring
53 Output Shaft
54 Rotor
55 Clip
56 Speedometer Drive Gear
57 Output Shaft Sleeve
58 Output Shaft Seal
Fig 3: Installing Output Shaft Support
G92J12582Courtesy of GENERAL MOTORS CORP.