GMC T Series 1994 Repair Manual page 780

203. BEARING, COUNTERSHAFT
300. HOUSING, REAR (2WD)
302. RETAINER, OUTPUT SHAFT BEARING (2WD)
304. BOLT, 22 N-m (16 LBS. FT.)
305. BOLT, 22 N-m (16 LBS. FT.)
27. Output shaft bearing snap ring (43) (4WD only).
28. Tap housing with a rubber mallet and remove rear
housing from assembly (figures 12 and 13).
29. Output shaft bearing retainer (302) (2WD models
only) (figure 12).
30. Shift forks (100 and 101) (figure 14).
31. Reverse idler gear (46).
32. Countershaft (53).
33. Bearing (203) (2WD models only).
• Slide the snap ring (43) away from the rotor to
make clearance for J 21427-01 (figure 15).
34. Speed sensor rotor (45) using J 21427-01 and
J 24420-B (2WD models only).
• Do NOT reuse rotor after romoval.
35. Snap ring (43) (2WD models only).
36. Snap ring (44) (2WD models only).
37. Bearing assembly, output shaft (33) (2WD models
only).
38. Mainshaft assembly (4) or (5) (figure 14).
• Leave the s y n c h ro n iz e r ring (2) on th e
39. Input shaft gear (1) and pilot bearing (3).
M AINSHAFT DISASSEMBLY
Disassemble (Figures 16 through 21)
❖
Tools Required:
J 36513 Gear and Bearing Separator Plate
1. Snap ring (6) (figure 16).
N O T IC E : O p t io n a l m e t h o d in fig u r e 1 6 c a n b e
u s e d i f t h e s e r v ic e p r e s s
e n o u g h f o r th e f i r s t s p e e d to p a s s th r o u g h .
T h is m e t h o d c a n b e u s e d to t o t a lly d is a s s e m ­
b ly th e m a in s h a ft, i f n e c e s s a r y .
2. Third-fourth synchronizer assembly (7), synchroniz­
er rings (2), and third speed gear (13) using
J 36513 and hydraulic press.
A. Scribe on hub and sleeve so the parts can be
B. Leave the synchronizer rings (2) to prevent the
3. Third gear needle bearing (14).
4. Collar (15) and spacers (16) (figure 17).
5. Second speed gear assembly (18).
6. Speed gear bearing assembly (17).
• Leave the synchronizer ring (2) on the first-sec-
3707r5192
7. First speed gear (22) and first-second synchronizer
assembly (19) using J 36513 and hydraulic press
(figure 18).
A. Scribe on hub and sleeve so the parts can be
important
third-fourth synchronizer assembly (7) to pre­
vent the synchronizer detent balls (9) from pop­
ping out.
Hydraulic Press
b e d is n o t w id e
reinstalled in the same position.
synchronizer detent balls (9) from popping out.
ond synchronizer assembly (19) to prevent the
synchronizer detent balls (9) from popping out.
reinstalled in the same position.