Posted by D Slater on March 18, 2011 at 17:08:23 from (184.15.39.42):
In Reply to: MD tranny teardown posted by BruceS. on March 18, 2011 at 10:56:43:
Some suggestions, after the top is off and before removing the top transmission shaft. Slide 2 gears in mesh to lock shafts, then loosen the drive dog for the hydrualic pump. Right hand threads or the same as a regular nut. Remove PTO and parts from one side of the clutch brake pedal shaft. Shaft needs to slide out enough for one end to pass the rear of the transmission counter shaft. Good time to replace seals on the clutch brake pedal shaft if needed. On the countershaft will be spring ring just behind the rear bearing that needs removed. Next the countershaft rear bearing is driven out of case and from the rear of shaft. If you left the drive dog nut on the front of the shaft after loosening it some, that will keep the counter shaft from trying to go back when driving bearing off. Now remove the drive dog nut, bearing retainer with seal and front bearing from shaft. Shaft can then worked out of the housing. Constant mesh and other gears are a press fit on the countershaft. All this is after the transmission input and top shaft is removed as others mentioned. Keep track of the shims at the main shaft rear bearing housing.
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