TH400 rebuild tech
(→Center support assembly) |
(→Main case bushing replacement) |
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[[file:Rearbushingdriver.jpg]] | [[file:Rearbushingdriver.jpg]] | ||
| − | A | + | A T-400 and 4L80E used in heavy towing will sometimes cause the rear bushing to "walk" to the rear, ruining the governor gear. There is a "fix" bushing for this that has a thrust surface on the front that prevents the bushing from walking. |
Use a stock bushing with red loctite and staked in place. | Use a stock bushing with red loctite and staked in place. | ||
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If you plan on using a rear torrington-type bearing you want to place the bushing ever so slightly protruding to the front, so that it will locate the bearing. | If you plan on using a rear torrington-type bearing you want to place the bushing ever so slightly protruding to the front, so that it will locate the bearing. | ||
| − | I use a T-350 pump - direct drum bearing from a later style | + | I use a T-350 pump - direct drum bearing from a later style T-350. These can be ordered new (preferred). This torrington bearing replaces the stock thrust washer and rear selective tang washer in the T-400. |
Pictured here, bearing is at the top: | Pictured here, bearing is at the top: | ||
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