Remove the 82 mm shim (A) from the transmission housing (B).

Thoroughly clean the spring washer before installing them on the ball bearing.

Install the 3rd/4th synchro hub, the distance collar, the 5th synchro hub, the distance collar, and ball bearing on the mainshaft.

NOTE: Refer to the mainshaft reassembly Exploded View.

Install the mainshaft in the clutch housing.

Place the transmission housing over the mainshaft and onto the clutch housing.

Secure the clutch and transmission housings with several 10 mm bolts.

NOTE: It is not necessary to use sealing agent between the housings for this procedure.

Light tap the mainshaft with a plastic hammer.

Attach the special tools to the mainshaft as follows:

Seat the mainshaft fully by tapping its end with a plastic hammer.

Thread the mainshaft holder bolt in until it just contacts the wide surface of the mainshaft base.

Zero a dial gauge (A) on the end of the mainshaft.

Turn the mainshaft holder bolt (B) clockwise; stop turning when the dial gauge (A) has reached its maximum movement. The reading on the dial gauge is the amount of mainshaft thrust clearance.

NOTE: Do not turn the mainshaft holder bolt more than 60 degrees after the needle of the dial gauge stop moving. Applying more pressure with the mainshaft holder bolt could damage the transmission.

If the reading is with in the standard, the clearance is correct. If the reading is not within the standards, select the appropriate shim needed from the table, and recheck the thrust clearance.

Standard:

0.14−0.21 mm (0.006−0.008 in.)

(Example)
Measure reading:	1.93 mm (0.0759 in.)
Subtract the total clearance measurement from the middle of the clearance standard 0.17 mm (0.0067 in.)

1.23 − 0.17 = 1.06 mm (0.0417 in.)

Select the shim closest to the amount calculated, for example the 1.05 mm (0.041 in.) shim.

With the appropriate size shim installed in the transmission housing, check the thrust clearance again to verify the clearance is within the standard.

	Part Number	Thickness
A	23931-PR8-F00	0.60 mm (0.024 in.)
B	23932-PR8-F00	0.63 mm (0.025 in.)
C	23933-PR8-F00	0.66 mm (0.026 in.)
D	23934-PR8-F00	0.69 mm (0.027 in.)
E	23935-PR8-F00	0.72 mm (0.028 in.)
F	23936-PR8-F00	0.75 mm (0.030 in.)
G	23937-PR8-F00	0.78 mm (0.031 in.)
H	23938-PR8-F00	0.81 mm (0.032 in.)
I	23939-PR8-F00	0.84 mm (0.033 in.)
J	23940-PR8-F00	0.87 mm (0.034 in.)
K	23941-PR8-F00	0.90 mm (0.035 in.)
L	23942-PR8-F00	0.93 mm (0.037 in.)
M	23943-PR8-F00	0.96 mm (0.038 in.)
N	23944-PR8-F00	0.99 mm (0.039 in.)
O	23945-PR8-F00	1.02 mm (0.040 in.)
P	23946-PR8-F00	1.05 mm (0.041 in.)
Q	23947-PR8-F00	1.08 mm (0.043 in.)
R	23948-PR8-F00	1.11 mm (0.044 in.)
S	23949-PR8-F00	1.14 mm (0.045 in.)
T	23950-PR8-F00	1.17 mm (0.046 in.)
U	23951-PR8-F00	1.20 mm (0.047 in.)
V	23952-RAT-000	1.23 mm (0.048 in.)
W	23953-RAT-000	1.26 mm (0.049 in.)
X	23954-RAT-000	1.29 mm (0.050 in.)
Y	23955-RAT-000	1.32 mm (0.051 in.)
Z	23956-RAT-000	1.35 mm (0.052 in.)
AA	23957-RAT-000	1.38 mm (0.053 in.)
AB	23958-RAT-000	1.41 mm (0.054 in.)
AC	23959-RAT-000	1.44 mm (0.055 in.)