Suzuki Grand Vitara JB627. Manual - part 250

5B-23 Manual Transmission/Transaxle: 

5) Assemble synchronizer sleeve (4) and hub (3) as 

follows.
a) Fit high speed synchronizer sleeve to hub in 

specified direction as shown in figure.

b) Insert 3 keys (2) to hub.
c) Set springs (1) at specified position as shown in 

figure.

Synchronizer key installation position
: A = B

6) Drive in high speed synchronizer assembly (1) using 

special tool and hammer.

NOTE

• While press-fitting sleeve & hub, make 

sure that synchronizer ring key slots (2) 
are aligned with keys in sleeve & hub 
assembly.

• Check free rotation of 4th gear after press 

fitting sleeve & hub assembly.

 

Special tool
(A):  09913–84510

7) Check 4th gear (1) thrust clearance by using 

thickness gauge. If clearance is out of specification, 
repress-fit or replace defective part.

4th gear thrust clearance
“a”: 0.10 – 0.25 mm (0.004 – 0.010 in.)

8) Apply oil to high speed gear needle bearing, and 

then install 3rd gear bush (1), high speed gear 
needle bearing (2) and 3rd gear (3).

9) Press-fit 5th speed synchronizer hub (1) using 

special tool and hammer.

Special tool
(A):  09913–84510

[A]: 4th gear side

C: Key way
D: Projecting end

I5JB0A520060-01

(A)

1

2

I5JB0A520061-01

4. 4th gear

“a”

1

I5JB0A520062-01

I5JB0A520063-01

(A)

1

I5JB0A520064-01

Manual Transmission/Transaxle:  5B-24

10) Check 3rd gear (1) thrust clearance by using 

thickness gauge. If clearance is out of specification, 
repress-fit or replace defective part.

3rd gear thrust clearance
“a”: 0.10 – 0.25 mm (0.004 – 0.010 in.)

11) Tighten input shaft 5th hub nut to specified torque in 

the same manner as step 4) of “Input Shaft 
Disassembly”.

CAUTION

!

 

Do not hold spline, gear teeth or abrasived 
surface of shaft with vise through “V” blocks 
or the like, otherwise shaft components may 
be damaged.

 

Tightening torque
Input shaft 5th hub nut:  210 N·m (21.0 kgf-m, 
152.0 lb-ft)

12) Caulk input shaft 5th hub nut (2) using caulking tool.
13) Drive in new input shaft union (1) using puller and 

hydraulic press.

Countershaft Disassembly and Assembly

S6JB0B5206025

Disassembly

1) Remove countershaft rear bearing (1) using bearing 

puller, metal stick (2) and hydraulic press.

2) Hold hatched area (5) of countershaft assembly (1) 

with “V” blocks (4) on vise (2) or the like to stop 
rotation of shaft, undo caulking and countershaft 
front bearing nut (3).

CAUTION

!

 

Do not hold spline, gear teeth or abrasived 
surface of shaft with “V” blocks on vise or 
the like, otherwise shaft may be damaged.

 

“a”

1

I5JB0A520065-01

1

2

I5JB0A520066-01

1

2

I5JB0A520067-01

5

1

2

3

4

I5JB0A520068-01

5B-25 Manual Transmission/Transaxle: 

3) Apply bearing puller to 2nd gear (1), and drive out 

countershaft front bearing (2), countershaft reverse 
gear (3), 1st gear (4), countershaft gear needle 
bearings, countershaft low needle bearing bush, low 
speed synchronizer assembly (5) and 2nd gear all at 
once from countershaft using metal stick (6) and 
hydraulic press.

CAUTION

!

 

To avoid gear teeth from being damaged, 
support 2nd gear at flat side of bearing puller.

 

Assembly

1) Clean all components thoroughly, inspect them for 

any abnormality and replace with new ones as 
necessary.

2) To ensure lubrication, air blow oil holes (1) and make 

sure that they are free from any obstruction.

3) Drive in countershaft rear bearing (1) using special 

tool and hammer.

Special tool
(A):  09913–84510

4) Apply oil to countershaft gear needle bearing (6), 

and then install needle bearing, 2nd gear (5) and low 
speed synchronizer ring (7).

5) Assemble synchronizer sleeve (4) and hub (3) as 

follows.
a) Fit low speed synchronizer sleeve to hub in 

specified direction as shown in figure.

b) Insert 3 keys (2) to hub.
c) Set springs (1) at specified position as shown in 

figure.

Synchronizer key installation position
: A = B

2

1

6

3

4

5

I5JB0A520069-01

1

I5JB0A520070-01

[A]: 1st gear side

C: Key way
D: Chamfered side

1

(A)

I5JB0A520071-01

I5JB0A520072-01

Manual Transmission/Transaxle:  5B-26

6) Drive in low speed synchronizer assembly (1) using 

special tool and hammer.

NOTE

• While press-fitting sleeve & hub, make 

sure that synchronizer ring key slots (2) 
are aligned with keys in sleeve & hub 
assembly.

• Check free rotation of 2nd gear after press-

fitting sleeve & hub assembly.

 

Special tool
(A):  09913–84510

7) Check 2nd gear (1) thrust clearance by using 

thickness gauge. If clearance is out of specification, 
repress-fit or replace defective part.

2nd gear thrust clearance
“a”: 0.10 – 0.25 mm (0.004 – 0.010 in.)

8) Apply oil to countershaft gear needle bearing, and 

then countershaft low needle bush, needle bearing 
and 1st gear (1) to countershaft.

9) Press-fit countershaft reverse gear (2) using special 

tool and hammer.

Special tool
(A):  09913–80113

10) Press-fit countershaft front bearing (1) using special 

tool and hammer.

Special tool
(A):  09913–84510

11) Check low gear (1) thrust clearance by using 

thickness gauge. If clearance is out of specification, 
repress-fit or replace defective part.

Low gear thrust clearance
“a”: 0.10 – 0.25 mm (0.004 – 0.010 in.)

1

2

(A)

I5JB0A520073-01

1

“a”

I5JB0A520074-01

1

(A)

2

I5JB0A520075-01

1

(A)

I5JB0A520076-01

“a”

1

I5JB0A520077-01