Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 334

5A-127 Automatic Transmission/Transaxle: 

14) Blow air into the second air hole from the left and 

remove second brake piston. Then remove piston 
inner O-ring and piston outer O-ring from second 
brake piston.

15) With second brake hub assembly (3) held stationary, 

turn planetary sun gear (4) clockwise to check that it 
locks and then counterclockwise to check that it 
turns smoothly.

16) Remove second brake hub assembly (1) from 

planetary sun gear (2).

17) Remove 2 sun gear seal rings (1) from planetary sun 

gear.

NOTE
Use care not to open sun gear seal ring more 
than necessary.

 

Assembly

Assemble components by reversing disassembly 
procedure and noting the following points.
• Snap both ends of sun gear seal ring (1) securely.

• Do not open sun gear seal ring more than necessary.
• Always use new O-ring and apply A/T fluid before 

installation.

• When installing O-ring, make sure that it is not kinked 

or caught.

• Push in brake piston horizontally.
• When installing brake piston return spring, be careful 

so that spring will not fall or tilt.

• When installing snap ring, do not align lug (1) of 

retainer with opening in snap ring (2).

[A]: Locks
[B]: Turns

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Automatic Transmission/Transaxle:  5A-128

• When installing brake discs, brake plates and clutch 

backing plate, refer to “Center Support Components”.

• Install clutch backing plate (1) with its flat side facing 

brake disc.

• After installing each retaining backing plate ring, 

measure movement of brake piston again.
If it is not within standard range, it is possible that ring 
is not installed properly. Then disassemble and 
reassemble again.

Standard movement of second coast brake piston 
and second brake piston
Second coast brake piston: 1.00 – 1.20 mm (0.039 
– 0.047 in.)
Second brake piston: 1.01 – 2.25 mm (0.040 – 
0.089 in.)

Center Support Inspection

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• Check that sliding surface of discs and plate are not 

worn or burnt. If necessary, replace them.

NOTE

• If disc lining is exfoliated, discolored or 

worn hardly, replace all discs.

• If only a part of printed numbers is 

corroded, replace all discs.

• Before assembling new discs, soak them 

in A/T fluid for at least 15 minutes.

 

• Measure inside diameter of center support hub 

bushing. If inside diameter exceeds limit, replace 
center support.

Center support bushing inside diameter standard
36.386 – 36.411 mm (1.4325 – 1.4335 in.)

• Measure inside diameter of planetary sun gear 

bushing. If inside diameter exceeds limit, replace 
planetary sun gear.

Planetary sun gear bushing inside diameter 
standard
21.501 – 21.527 mm (0.8465 – 0.8475 in.)

• Measure free length of piston return spring.

Standard free length of second coast brake piston 
return spring
16.84 mm (0.663 in.)

Standard free length of second brake piston 
return spring
15.82 mm (0.623 in.)

2. Step

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5A-129 Automatic Transmission/Transaxle: 

Planetary Gears and Output Shaft Components

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9

4

5

3

2

2

11

10

13

2

12

18

14

16

15

16

14

2

17

1

10

6

18

FLD

8

FLD

7

FLD

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1. Inner shaft

6. Front planetary gear

11. Front planetary ring gear

16. Bearing race

2. Retaining ring

7. Reverse brake plate

12. Rear planetary gear

17. Output shaft assembly

3. Reverse brake reaction plate

8. Reverse brake disc

13. Planetary sun gear

18. Seal ring

4. One-way clutch

9. Reverse brake backing plate

14. Bearing

: Apply A/T fluid.

5. One-way clutch thrust washer

10. Thrust washer

15. Rear planetary ring gear

Automatic Transmission/Transaxle:  5A-130

Planetary Gears and Output Shaft Disassembly 
and Assembly

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Disassembly

1) Remove front planetary gear assembly (1) from 

output shaft assembly (2).

2) Remove rear planetary thrust washer (1), reverse 

brake backing plate (2), reverse brake disc (3) and 
reverse brake plate (4) from front planetary gear 
assembly.

3) Remove reverse brake reaction plate (2) from front 

planetary gear (1).

4) After removing retaining ring (1), remove one-way 

clutch (2) and one-way clutch rear thrust washer (3).

5) After removing retaining ring (1), remove front 

planetary ring gear (2), thrust bearing and bearing 
race.

6) Remove thrust washer (1), rear planetary gear (2) 

and rear planetary sun gear (3).

7) After removing retaining ring (2) from inner shaft (1), 

remove rear planetary ring gear (3) and thrust 
bearing assembly.

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4. Front planetary gear

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