Tr6060 Manual Transmission (Service Information): Disassembly: Notes
Position the transmission over a suitable drain pan and empty the lubricant. Place the transmission on a stable work surface. If the bellhousing is attached to the transmission, remove the bellhousing.
- Remove the bolts (2) holding the shift cover to the extension housing.
- Separate the shift cover (1) from the extension housing.
- Using a suitable hammer and punch, remove the roll pin (2) holding the offset lever (1) to the shaft rail.
- Remove the offset lever (1) from the shift rail (2).
- Remove the nuts (2) holding the top of the extension housing (1) to the transmission.
- Remove the bolts (2) holding the extension housing (1) to the transmission.
- Pry the extension housing (1) from the transmission (2) at the pry points.
- Remove the bolts holding the clutch release bearing to the transmission.
- Separate the clutch release bearing from the transmission.
- Remove all but two of the bolts holding the input shaft adapter housing to the transmission.
- Place the tool (special tool #9387, Fixture, Transmission Holding) in position on the front of the transmission.
- Install four bolts to hold the fixture to the bellhousing mount locations on the transmission.
- Insert transmission fixture into the tool (special tool #9385, Holding Fixture, Bench Mount) that is bolted to a suitable work bench.NOTE:
If the output shaft packing (1) is damaged, it does not require replacement. It can be discarded.
- Remove the output shaft (2) packing (1).
- Remove the snap ring (1) holding the roller bearing (2) to the mainshaft.
- Remove the roller bearing (1) and spacers (2) from the mainshaft.
- Remove the snap ring (2) holding the reverse gear on the mainshaft.
- Remove the reverse gear thrust washer (2) from the mainshaft.
- Remove the reverse gear (1) from the mainshaft (2).
- Remove the reverse gear bearing (1) from the mainshaft (2).
- Remove the reverse synchronizer rings (1) from the reverse synchronizer hub.
- Remove the snap ring (2) holding the reverse synchronizer hub (1) on the mainshaft.
- Remove the snap ring (2) holding the reverse shift fork on the shift rail (discard snap ring)
.NOTE:
If necessary, the sleeve and detents can be removed separately from the mainshaft.
- Remove the reverse shift fork (1), synchronizer hub, and sleeve (2) from the mainshaft as an assembly if possible.
- Remove the snap ring (2) holding the reverse gear (1) on the countershaft.
- Using a typical three jaw puller (2) and (special tool #10027, Button, Press), pull the reverse gear (1) from countershaft.
- Remove the snap ring (1) holding the fifth gear thrust washer (2) on the countershaft.
- Remove the fifth gear thrust washer (1) from the countershaft (2).
- Remove fifth gear (1) from the countershaft (2).
- Remove the fifth gear bearing (1) from countershaft (2).
- Remove the fifth gear bearing spacer (1) from countershaft (2).
- Remove the fifth gear synchronizer rings (1) from the 5-6 synchronizer hub (2).
- Remove the retainer (1) holding the split ring on fifth gear and the mainshaft (2).
- Remove the split rings (1) holding fifth gear on the mainshaft (2).
- Using tools (special tool #9382, Bridge), (special tool #9378, Bolts, Puller), (special tool #10027, Button, Press) and (special tool #9379a, Remover, Gear), remove fifth gear (4) from the mainshaft.
- Remove the snap ring (1) holding the 5-6 gear shift fork on the shift rail (2).
- Remove snap ring (1) holding the 5-6 synchronizer hub on the countershaft.
- While pulling or prying upward on the 5-6 shaft fork (1), remove the synchronizer sleeve (2), and detents (3) from the 5-6 synchronizer hub.
- Using tools (special tool #9382, Bridge) (1), (special tool #9378, Bolts, Puller) (2), (special tool #10027, Button, Press) and (special tool #10026, Puller, Synchro Hub) (3), remove the 5-6 synchronizer hub from the countershaft.
- Remove the synchronizer rings (1) from sixth gear (2).
- Remove sixth gear (1) from the countershaft (2).
- Remove the sixth gear bearing (1) from the countershaft (2).
- Remove the sixth gear bearing spacer (1) from the countershaft (2).
- Remove the bolts holding the top cover (1) to the transmission housing (2).
- Separate the top cover (1) from the transmission (2).
- Remove shift detent plug (1) from the right side of transmission (2).
- Remove the skip shift solenoid (1) from the left side of transmission (2).
- Using a suitable pin-punch, drive the roll pin downward until the skip shift lever (1) is free on the shift rail (2).
- Remove plug (1) holding the roller detent in the transmission adapter (2).
- Extract the roller detent (1) and spring (2) from the bore in the transmission adapter.
- Remove the shift lever guide bolts (2) from the top of transmission housing (1).
- Remove the remaining bolts (3) holding the input shaft adapter (2) to the transmission housing.
- Lift the transmission housing (1) upward and off of the input shaft adapter plate (2) and remove skip shift lever from shift rail.
- Remove reverse shift rail (2) assembly from input shaft adapter plate (3).
- Tilt the countershaft (4) sideways, then remove the mainshaft (1) and the shift rail (2) from the adapter plate (3).
- Remove the countershaft (4) assembly from the adapter plate.
- Remove the input shaft synchronizer ring (1) and the input shaft (2) from transmission adapter.