What happens in a transmission rebuild - Part 7

[Mac VP]

LINK TO ORIGINAL POST:
https://www.fordbarn.com/forum/showthread.php?t=278347

PLEASE NOTE: Part 7 has two groups of text and images. Be sure to scroll down for the second part.

Many steps occur in dealing with the mainshaft. After cleaning and inspection, we usually test fit the various gears that are associated with its assembly. If we are re-using the same gears from the core unit, they generally fit correctly since they had already lived there. If replacing any gears, be sure to test fit them.

The next step is to install the rear (or as known in overdrive transmissions - the intermediate) ball bearing. This bearing originally was specified without a snap ring groove, however in service the same bearing with the groove is often used. Since the original bearing had no groove, it doesn't matter which direction you fit the bearing to the shaft. The inner race of the bearing should be a light press fit to the journal of the shaft. If you find that the bearing slides all the way into place by hand, we suggest dimpling the shaft bearing journal (4 to 6 dimples with a sharp punch) to provide enough friction to keep the inner race from spinning on the shaft. A snap ring is then placed behind the bearing.

The bearing and mainshaft can then be fitted to the overdrive adapter casting. The special oil baffle must be dropped into the pocket first (beveled cup side out toward the rear). Then the shaft and bearing are fitted into place. Make sure the pocket is clean and lightly oiled. You often have to tap the shaft and bearing down to seat the bearing all the way into place. The snap ring groove should be visible just above the front of the bearing outer race. The retaining snap ring must be compressed slightly to fit it into the groove.....make sure it has seated properly.