17-24. TURBINE SHAFT AND OVERDRIVE CARRIER ASSEMBLY REPAIR (4L80-E) (Cont'd)
i. Turbine Shaft Inspection
Ensure that checkball (3) on end of shaft (2) is present. Replace shaft (2) if checkball (3) is missing.
Inspect shaft (2) for broken or twisted splines, cracks, and plugged oil passages. Clear oil passages.
Replace shaft (2) if damaged.
j. Overdrive Unit Assembly
All transmission parts must be lubricated with clean transmission
fluid (Dexron III) before assembly. Foreign material will cause
Steps 1 through 4 apply to one end of shaft. Repeat these steps
using different size tools for opposite end of shaft.
Use small chamfer end of sizer to do the lower seal. Use larger
chamfered end to size all other seals.
Install the inner seal ring first, then the outer ring.
Place seal installer J38736-1 on shaft (2).
Using seal pusher J38736-5, push inner seal ring (1) over and down the installer until in place.
Repeat step for outer ring (1).
Remove seal pusher and installer.
Sizer must remain on seal for 5 minutes.
Place seal sizer J38736-3 over shaft (2) and size seal rings (1) in place.
Repeat steps 1 through 4 for inner and outer seal rings (4).
Place carrier assembly (6) in overrun clutch housing (7). Rotate carrier (6) during assembly to align
clutch plate assembly teeth.
Install turbine shaft (8) through housing (7) and overdrive carrier assembly (6), and secure with