TI-2621

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 Fit the 3rd speed gear (12) – Fig. 38.

Fig. 38

12
Fig. 39

 Fit the roller bearing cage (13) onto the 2nd6th-5th-7th speed secondary shaft – Fig. 39.

13

Fig. 40

14

 Use an elastic band (14) to keep the interlock
(15) raised as shown in the photo aside – Fig.
40.

15
41
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TI-2621

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 Install the inner ring (17) in the 5th speed gear
(16) – Fig. 41.

Fig. 41

17

16
Fig. 42

 Fit the outer ring (18), aligning the respective
seats – Fig. 42.

18

Fig. 43

 Fit the upper ring (19), aligning the respective
tabs – Fig. 43.

19

42
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TI-2621

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Ferrari North America
 Fit the 5th-7th speed synchronizer (20), turned
the right way around as originally fitted and
matching the tabs on the upper ring with the
recesses on the synchronizer itself as shown –
Fig. 44.

Fig. 44

20

 Select the 5th-7th speed fork (9) (the longer of
the two) – Fig. 45.

9

Fig. 45

 Fit the tool AV 8817 on the longer part of the
5th-7th speed fork – Fig. 46.

Fig. 46
AV 8817

43
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TI-2621

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Ferrari North America
 Fit the 5th-7th speed fork (9) onto the
synchronizer assembly and the 5th speed gear
(21), as shown in the photo aside – Fig. 47.

22

 Engage the odd gear primary shaft (22) with
the 5th speed gear as shown in the photo
aside – Fig. 47.

9
21
 Fit the odd gear primary shaft assembly (22)
and the 5th speed gear (21), complete with
synchronizer and relative fork, into the
respective seats on the gear housing – Fig.48
Note: Handle the synchronizer with
extreme care during this procedure to
prevent
the
components
of
the
synchronizer itself from separating

Fig. 47

22

21
Fig. 48

 During installation, engage the teeth on the
primary shaft (22) with the 3rd speed gear
(12) – Fig. 49.

12
22

Fig. 49
44
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TI-2621

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Fig. 50

 Ensure that the parts are all assembled correctly
by checking that the protruding part of the 5th7th speed synchronizer (20) is flush with the
splining of the shaft – Fig. 50.

20

Fig. 51

 Remove the elastic band (14) fitted previously –
Fig. 51.

14

 Unscrew and remove the bushing AV 8817 from
the rod – Fig. 52.

Fig. 52

AV 8817
45
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TI-2621

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Fig. 53

 Install the lower ring (24) onto the 1st-3rd
gear
synchronizer
(23)
reassembled
previously, aligning the recesses correctly –
Fig. 53.

24

23
 Install the exterior ring (25) – Fig. 54.
25

 Install the interior ring (26), aligning the
recesses as shown – Fig. 55.

26

Fig. 54

Fig. 55

46
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TI-2621

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whole or in part is not permitted without
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Ferrari North America
Fig. 56

 Fit the tool AV 8817 on the longer part of the
1st-3rd speed fork – Fig. 56.

 Fit the shorter 1st-3rd speed fork (27) onto
the relative synchronizer (23), then fit the
assembly fully into the indicated seats – Fig.
57.
Note:
Note:

AV 8817

27

If necessary, rotate the primary
shaft by hand to facilitate installation.

Handle the synchronizer with
extreme care during this procedure to
prevent the components of the
synchronizer itself from separating.

23
Fig. 57

 Ensure that the parts are all assembled
correctly by checking that the protruding part
of the 1st-3rd speed synchronizer is flush with
the splining of the shaft – Fig. 58.

Fig. 58

47
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TI-2621

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Unscrew and remove the bush AV 8817 from the
rod – Fig. 59.
AV 8817

Fig. 59

 Fit the shim ring (28) on the 2nd-6th-5th-7th
speed secondary shaft – Fig. 60.
Note: The shim (28) can be installed either
way around.

 Fit the sleeve/bushing (29) on the 2nd-6th5th-7th speed secondary shaft, rotating the
bush itself so that the lubrication holes
indicated are not aligned – Fig. 61.

Fig. 60

28

29

Fig. 61

48
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TI-2621

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 Using the punch AV 8816 and a rubber
mallet, install the bushing/sleeve (29) fully in
its seat - Fig. 62.

Fig. 62

AV 8816

29

30

Fig. 63

 Fit the bushing (30) on the R-4th-3rd-1st
speed secondary shaft with the stamped
writing at the top and ensuring that the
lubrication orifices indicated are not aligned
– Fig. 63.

30
 Using the punch AV 8630 and a rubber
mallet, install the bushing (30) fully in its seat
- Fig. 64.
AV 8630

Fig. 64
49
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TI-2621

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Ferrari North America
Fit the lower ring (32) on the 5th-7th speed
synchronizer, aligning the recesses correctly – Fig.
65.

Fig. 65

32

 Fit the outer ring (33) – Fig. 66.

33

 Fit the inner ring (34) – Fig. 67.

34

Fig. 66

Fig. 67

50
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 Check that the rings are installed in the correct
position, and aligned as shown in the image
aside – Fig. 68.

Fig. 68

Fig. 69

 Fit the roller bearing cage (35) on the 2nd6th-5th-7th gear secondary shaft – Fig. 69.
35

Fig. 70

36

 Fit the 7th speed gear (36), aligning the
respective seats correctly – Fig. 70.

51
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TI-2621

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Ferrari North America
Check that the end face of the 7th speed gear is
flush with the roller bearing cage and the
underlying bush – Fig. 71.

 Fit the shim (37) on the 2nd-6th-5th-7th
secondary shaft with the convex side turned
upward – Fig. 72.

Fig. 71

Fig. 72

37

 Using the punch AV 8816 and a rubber
mallet, install the shim (37) fully in its seat Fig. 73.
AV 8816

37
Fig. 73
52
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TI-2621

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Ferrari North America
 Fit the new seeger ring (38) in the relative
groove on 2nd-6th-5th-7th speed secondary
shaft - Fig. 74.

Fig. 74

38

 Ensure that the seeger ring (38) is engaged
correctly in the groove – Fig. 75.

Fig. 75

 If installed correctly, the seeger ring (38) must
look as shown in the photo aside – Fig. 75.

38

 Fit the lower ring (39) on the 1st-3rd speed
synchronizer, aligning the recesses correctly –
Fig. 76.

Fig. 76

39
53
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TI-2621

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Ferrari North America
Fit the outer ring (40) – Fig. 77.

Fig. 77

40

41

 Fit the inner ring (41) – Fig. 78.

Fig. 78
Fig. 79

 Check that the rings are installed in the correct
position, and aligned as shown in the image
aside – Fig. 79.

54
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TI-2621

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Fit the roller bearing cage (42) on the R-4th-3rd1st speed secondary shaft - Fig. 80.

Fig. 80

42

 Fit the 1st speed gear (43), aligning the
respective seats correctly – Fig. 81.

43

Fig. 81