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Old 06-07-2019, 03:14 PM   #8
The Librarian
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Join Date: Nov 2011
Location: So Cal

Originally Posted by 2manyturbos View Post
I can't view your video, not that it matters. You may have a slipping cone clutch in the overdrive unit. That will behave just like a slipping clutch.
The cone clutch isn't capable of handling the full torque of the engine so a one way clutch is used to augment the cone clutch. The design is fairly robust but doesn't tolerate dirt and debris very well.

Originally Posted by xactorocker View Post
Hey I'm not really sure what a cone clutch is and I can't really find anything about it on the internet. Also how can I test it. And even more important if that is the problem where can I find it.
The cone clutch is part of the overdrive. It actually has 2 clutch surfaces. The inner clutch is for direct drive and reverse. Because of the aforementioned one way clutch, it's primarily for reverse. The outer clutch is for overdrive.

Replacements can be found here.

The one way clutch is the more likely suspect. This is an updated version. Yours may look a little different.
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