Page 1529 of 1767
7. Remove bearings from case components.
SMT394A
DISASSEMBLY
Gear Components (Cont'd)
MT-20
Page 1530 of 1767
Shift Control Components
ICheck contact surface and sliding surface for wear, scratches,
projections or other damage.
Gear Components
GEARS AND SHAFTS
ICheck shafts for cracks, wear or bending.
ICheck gears for excessive wear, chips or cracks.
SYNCHRONIZERS
ICheck spline portion of coupling sleeves, hubs, and gears for
wear or cracks.
ICheck baulk rings for cracks or deformation.
ICheck shifting inserts for wear or deformation.
ICheck insert springs for deformation.
Clearance between baulk ring and gear
Unit: mm (in)
Standard Wear limit
1st & 2nd 1.05 - 1.3 (0.0413 - 0.0512) 0.7 (0.028)
3rd & main drive 1.05 - 1.3 (0.0413 - 0.0512) 0.7 (0.028)
OD 1.05 - 1.3 (0.0413 - 0.0512) 0.7 (0.028)
If the clearance is smaller than the wear limit, replace baulk ring.
SMT398A
SMT386A
SMT423A
SMT387A
SMT140
INSPECTION
MT-21
Page 1531 of 1767
IMeasure wear of reverse baulk ring.
a. Place baulk ring in position on reverse cone.
b. While holding baulk ring against reverse cone as far as it will
go, measure dimension ªAº with dial indicator.
Unit: mm (in)
Standard Wear limit
Dimension ªAºþ0.1 to 0.35
(þ0.0039 to 0.0138)0.7 (0.028)
c. If dimension ªAº is larger than the wear limit, replace baulk ring.
BEARINGS
IMake sure bearings roll freely and are free from noise, cracks,
pitting or wear.
SMT424A
SMT418A
INSPECTION
Gear Components (Cont'd)
MT-22
Page 1532 of 1767
Gear Components
1. Install bearings into case components.
2. Install main drive gear bearing.
a. Press main drive gear bearing.
b. Install main drive gear spacer.
c. Select proper main drive gear snap ring to minimize clearance
of groove.
Allowable clearance of groove:
0 - 0.1 mm (0 - 0.004 in)
Main drive gear snap ring
Thickness mm (in) Part number
1.89 (0.0744) 32204-01G00
1.98 (0.0780) 32204-01G01
2.05 (0.0807) 32204-01G02
2.12 (0.0835) 32204-01G03
2.19 (0.0862) 32204-01G04
SMT395A
SMT425A
SMT426A
ASSEMBLY
MT-23
Page 1533 of 1767
d. Install selected snap ring on main drive gear.
3. Install components on counter gear.
a. Install sub-gear components.
When installing sub-gear snap ring, tap sub-gear snap ring
into position on counter gear.
b. Install counter gear rear thrust bearing.
4. Install front side components on mainshaft.
a. Assemble 1st & 2nd synchronizer.
b. Assemble 3rd & 4th synchronizer.
SMT577A
SMT405A
SMT421A
SMT422A
ASSEMBLY
Gear Components (Cont'd)
MT-24
Page 1534 of 1767
c. Press on 3rd & 4th synchronizer assembly together with 3rd
main gear and 3rd gear needle bearing.
Pay attention to direction of synchronizer assembly.
d. Select proper snap ring to minimize clearance of groove.
Allowable clearance of groove:
0 - 0.1 mm (0 - 0.004 in)
Mainshaft front snap ring
Thickness mm (in) Part number
1.89 (0.0744) 32204-01G00
1.98 (0.0780) 32204-01G01
2.05 (0.0807) 32204-01G02
2.12 (0.0835) 32204-01G03
2.19 (0.0862) 32204-01G04
e. Install selected snap ring on mainshaft.
f. Press on 1st & 2nd synchronizer assembly together with 2nd
main gear and 2nd gear needle bearing.
g. Press on 1st gear bushing using 1st gear washer.
h. Install 1st main gear and needle bearing.
SMT399A
SMT400A
SMT401A
SMT402A
ASSEMBLY
Gear Components (Cont'd)
MT-25
Page 1535 of 1767

i. Install steel ball and 1st gear washer.
Apply multi-purpose grease to steel ball and 1st gear washer
before installing.
5. Select proper counter gear front bearing shim when replacing
transmission case, counter gear, counter gear thrust bearing or
sub-gear components.
a. Install counter gear with sub-gear components, counter gear
front and rear thrust bearing on adapter plate.
b. Remove counter gear front bearing shim from transmission
case.
c. Place adapter plate and counter gear assembly in transmission
case (case inverted).
d. Tighten adapter plate to transmission case using 2 bolts.
e. Place dial indicator on rear end of counter gear.
f. Move counter gear up and down and measure dial indicator
deflection.
g. Select proper shim using table below as a guide.
Counter gear end play:
0.10 - 0.25 mm (0.0039 - 0.0098 in)
Table for selecting proper counter gear front bearing shim
Dial indicator deflection
mm (in)Thickness of
proper washer
mm (in)Part number
0.93 - 1.02 (0.0366 - 0.0402) 0.88 (0.0346) 32216-01G11
1.03 - 1.12 (0.0406 - 0.0441) 0.96 (0.0378) 32216-01G12
1.13 - 1.22 (0.0445 - 0.0480) 1.04 (0.0409) 32216-01G13
1.23 - 1.32 (0.0484 - 0.0520) 1.12 (0.0441) 32216-01G14
1.33 - 1.42 (0.0524 - 0.0559) 1.28 (0.0504) 32216-01G15
1.43 - 1.52 (0.0563 - 0.0598) 1.36 (0.0535) 32216-01G16
1.53 - 1.62 (0.0602 - 0.0638) 1.44 (0.0567) 32216-01G17
SMT403A
SMT427A
SMT578A
ASSEMBLY
Gear Components (Cont'd)
MT-26
Page 1536 of 1767
6. Select proper reverse idler rear trust washer when replacing
OD gear case, reverse idler gear, reverse idler shaft or reverse
idler thrust washer.
a. Install reverse idler gear, reverse idler needle bearings, reverse
idler thrust washers and reverse idler shaft into OD gear case.
When replacing reverse idler rear washer, install either A or B.
Reverse idler rear thrust washer.
Thickness mm (in) Part number
A 1.97 (0.0776) 32284-01G10
B 2.07 (0.0815) 32284-01G11
b. Place dial indicator on front end of reverse idler shaft.
c. Put straightedge on front surface of OD gear case as a stop-
per for reverse idler shaft.
d. Move reverse idler shaft up and down and measure reverse
idler gear end play.
Reverse idler gear end play:
0.30 - 0.53 mm (0.0118 - 0.0209 in)
e. If not within specification, replace reverse idler rear thrust
washer with the other (A or B) and check again.
SMT442B
SMT433A
ASSEMBLY
Gear Components (Cont'd)
MT-27