- Separate the center support
assembly (640) from the reaction drum and carrier assembly (651).
- Remove the support/reaction drum thrust washer (642) (brass).
The thrust washer may be stuck to the center support assembly.
- Remove the sun gear shaft
(649).
- Inspect the sun gear shaft (649) for the following:
• | Nicked, scored or worn bushings |
• | Damaged splines and teeth |
- Remove the reaction drum
and carrier assembly (651) from the output carrier assembly (661).
- Remove the roller clutch assembly (644) from the reaction drum
and carrier assembly (651).
- Inspect the reaction drum and carrier (651) assembly for the following:
• | The pinion gear and pocket thrust surfaces for damage |
• | Cracks or damage to band apply surface |
• | Planetary pinion gear pin for proper location (walking) |
• | The bushings for damage |
- Inspect the roller clutch assembly (644) for damage to the rollers,
springs and cage surfaces.
- Remove the sun gear front
thrust bearing assembly (647).
- Remove the sun gear thrust bearing races (646, 648). One race
(646) may be stuck to the center support assembly.
- Remove the sun gear (650).
- Remove the front internal/reaction carrier washer (659) from the
output carrier assembly (661).
- Inspect the thrust washers, the bearings and the races for damage.
- Inspect the sun gear teeth for damage.
- Turn the output carrier
assembly (661) over so that the output shaft (671) faces up.
- Remove the output shaft thrust washer (673).
- Remove the output shaft retainer ring (672).
- Remove the output shaft (671).
- Inspect the output shaft (671) for the following:
- Remove the thrust bearing (647) and the thrust bearing races (648,
669) from the rear internal gear (666). The thrust bearing may be stuck to
the output shaft (671).
- Inspect the thrust bearing and races for damage.
- Remove the rear internal
gear (666) and the main shaft (662) from the output carrier assembly (661).
- Remove the rear internal gear thrust bearing (664) and races (663
and 665).
- Inspect the thrust washers, the bearings, and the races for damage.
- Remove the main shaft
retainer ring (670). Hold the main shaft (662) so it will not fall and become
damaged.
- Remove the main shaft (662) from the rear internal gear (666).
- Inspect the main shaft (662) for damaged splines.
- Inspect the main shaft (662) for wear.
- Inspect the rear internal gear (666) for the following:
- Clean all components thoroughly.
- Inspect the output carrier assembly (661) for the following:
• | Damage to the park pawl lugs |
• | Damage to the pinion gears |
• | Excessive wear to the pinion gear steel and brass washers |
• | Damage to the pinion gear and pocket thrust surfaces. |
- Inspect the front internal gear for damage and cracks.
- Inspect the output speed sensor ring (660) for tightness and damage.