92 Mustang Overdrive not working

1992 FORD MUSTANG
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MARQUEZ
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I have an LX 5.0 automatic and when driving on the express way I normally engage the overdrive around 55mph. Now when I step on the gas my RPMs jump up but the car just don't seem to go. When I let off the gas the RPMs normal out. I have rebuilt the transmission and changed out the transmission belt but it still does not work. I live in Korea via the US military and Koreans have little experience about foreign cars. Can anyone recommend a fix action.
May 5, 2006 at 11:20 PM
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IMPORTBASHER89
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Sounds to me like there is a internal problem with the overdrive clutches. Maybe a seal has busted allowing fluid pressure to drop in overdrive. All this is internal. Need to pull trans and investigate.
May 6, 2006 at 8:46 AM
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MARQUEZ
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I had my transmission rebuilt. Wouldn't this isolate any problems that involve the overdrive clutches?
May 7, 2006 at 6:41 PM
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