GMC T Series 1994 Repair Manual page 716

Figure 31 Measuring Pinion End Play
REACTION DRUM AND CARRIER ASSEMBLY
Figures 30 and 32
|I? | Inspect
1. Reaction drum and carrier assembly (651) for:
• Pinion gear and pocket thrust surfaces for
damage.
• Cracks or damage to band apply surface.
• Pinion gear damage.
Measure
\ % \
• Excess pinion washer wear using feeler gage
(end play should be 0.228 to 0.610 mm
(0.009 to 0.024 inch)
2. Roller clutch assembly (644) for:
• Damage to rollers, springs and cage surfaces.
3. Reaction drum spacer ring (645) for:
• Damage.
R q Assemble
1. Reaction drum spacer ring (645) into reaction
drum (651).
2. Roller clutch assembly (644) into reaction drum
(651).
| y | Inspect
• Sun gear (650) and sun gear shaft (649) for:
- Nicked, scored or worn bushings (676).
- Damaged splines or teeth.
- Cracks.
CENTER SUPPORT ASSEMBLY
Figures 33 through 36
Tools Required:
j
|<--»| Remove or Disconnect
Figure 33
1. Press in on spring retainer (635) and remove
snap ring (634). Using J 38734 Adapter.
2. Spring and retainer assembly (635).
3. Clutch piston (636).
4. Inner seal (637) and outer seal (638) from clutch
piston (636).
| T|
Important
• Do not remove three bolts holding roller clutch
race to center support (640). A new center support
assembly (640) and bolt (25) should be used for
any overhaul.
|ig | Clean
• All components.
J 6116-01 Rear Gear Assembly Holding
Fixture
J 21363 Intermediate Clutch Inner Seal
Protector
J 23327 Clutch Spring Compressor
J 38734 Intermediate Clutch Piston
Compressor Adapter
J 38735-1 Solid Seal Installer
J 38735-2 Seal Sizer
J 38735-3 Seal Pusher