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Old 06-07-2019, 03:34 PM   #9
2manyturbos
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Join Date: Mar 2003
Location: Monroe, OR USA
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Quote:
Originally Posted by hiperfauto View Post
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.



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.

https://www.cvi-automotive.se/en/art...380689-st-also

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

https://www.cvi-automotive.se/en/art...-some-pj-types
Thanks for clarifying. It's been 30+ years since I have rebuilt and overdrive unit. All I really remember about them is they can develop slip in both directions to the point the car will barely move.
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