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MANUAL TRANSMISSIONS
78-39
Fig. 78-49 Speedometer Gear and Snap Rings
8. Slide the reverse gear from the mainshaft (Fig. 7B-50)
and slide the rear portion of the reverse idler gear from the
transmission case.
Fig. 78-50 Removing Reverse Gear
9. Remove front bearing retainer bolts, gasket and front
bearing retainer from case.
10. Remove front bearing snap ring selective fit snap ring
and spacer washer.
11. Using Tools J 8433-1 and J 22912, remove front main
drive gear bearing from transmission case (Fig. 7B-5 1).
12. Remove the rear retainer lock bolt.
13. Shift first-second and third-fourth clutch sliding
sleeves forward to permit adequate clearance for mainshaft
removal. Remove mainshaft and rear bearing retainer
assembly from the transmission case.
14. Remove front reverse idler gear and thrust washer
from case.
NOTE: Gear teeth face toward front of transmission.
15. Using Loader J 24658, drive countergear shaft out
of countergear (Fig. 7B-52) and remove countergear and
tanged thrust washers from case. Check bottom of case for
pilot bearings or other loose components.
I
Fig. 78-5 1 Removing Main Drive Gear Bearing
I
Fig. 7 8 - 5 2 Removing Countergear Shaft
DISASSEMBLY OF MAINSHAFT
(Fig. 78-53)
1. Using snap ring pliers, remove 3-4 clutch assembly
retaining ring at front of mainshaft (Fig. 7B-54). Slide washer,
synchronizer and clutch assembly, synchronizer ring and 3rd
speed gear from mainshaft.
2. Spread rear bearing retainer snap ring (Fig. 7B-55)
and slide retainer from mainshaft.
3. Remove rear bearing-to-mainshaft snap ring (Fig. 7B-
56).
4. Support mainshaft under 2nd gear and press
mainshaft from rear bearing, 1st gear and sleeve, 1-2 clutch
and synchronizer assembly and the second gear (Fig. 7B-57).
CLEANING AND INSPECTION
Transmission Case
1. Wash the transmission thoroughly inside and outside
with cleaning solvent, then inspect the case for cracks.
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