TH400 rebuild tech

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(photos taken by me at home)
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This is a picture of an upgrade for high RPM applications, it is a spiro lock type retainer instead of a regular snap ring. The regular snap rings will release due to centrifugal forces at high RPM. This fits on the direct drum plate that covers the sprag.
 
This is a picture of an upgrade for high RPM applications, it is a spiro lock type retainer instead of a regular snap ring. The regular snap rings will release due to centrifugal forces at high RPM. This fits on the direct drum plate that covers the sprag.
  
The 4L80E direct drum uses a sprag race that is .045 to .050 wider than the T-400 sprag race. If you acquire a 4L80E direct drum be sure to have the correct race too.
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[[file:Spirolock.jpg]]
 
[[file:Spirolock.jpg]]

Revision as of 16:22, 29 March 2012

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