GMC T Series 1994 Repair Manual page 649

Figure 57 Retainer and Checkball Removal/Installation
IfiH Inspect
Figure 53
• The 3-4 clutch piston (623) for damage or
porosity.
• The 3-4 clutch apply ring (625) for:
- Bent tangs.
• The 3-4 clutch spring assem bly (626) for
damage or distortion.
• The 3-4 clutch boost spring assemblies (600)
for damage or distortion.
|h^h| Assemble
Figure 58
Position the input housing and shaft assembly
on the bench with the turbine shaft through a bench
hole.
1. Inner and outer 3-4 clutch lip seals (624) on the
3-4 clutch piston.
• Seal lips must face away from the piston
hub.
• Lubricate the seals with Transjel™ J 36850
or equivalent.
2. The 3-4 clutch piston (623) into the input
housing as shown.
• Use care not to damage the seals.
Figure 58 Input Housing and 3-4 Piston
[ y ] Inspect
Figures 59 and 60
• Forward clutch housing (628) for:
- Proper checkball operation.
- Damage or distortion.
- Burrs in seal areas.
- Cracks.
• Forward clutch piston (630) and overrun clutch
piston (632) for:
- Porosity or damage.
- Ring groove damage.
- Apply leg damage.
• Overrun spring assembly (634) for damage or
distortion.
• Input housing to output shaft lip seal (636) for
damage or wear.
| |^ 1 Assemble
h
Figures 59 and 60
1. Forward clutch housing to input clutch housing
O-ring seal (622) as shown.
• Lubricate with Transjel™ J 36850 or
equivalent.