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Old 03-28-2011, 11:53 PM
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jackstands = rear trans leak ?

I was wondering.......My starter was acting up, so I jacked the front end of my car up real high and put it on jackstands.

I played with the starter for 4 mins and when I was removing the jackstands I noticed a little circle of trans fluid on the ground and my drive shaft yoke was wet, the rest of my transmission was totally dry.

I jacked the front end of the car up higher than I normally do?

Please tell me this is the cause.

The transmission had not been leaking before I jacked it up.


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Old 03-29-2011, 08:34 AM
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It's possible that the extension housing bushing or your yoke is worn and the fact you jacked up the front end allowed trans fluid to drain into the extension housing. See if you can detect any movement at the yoke where it is inserted into the extension housing. If you can replace either the extension housing bushing or your yoke depending on which is worn.

It is also possible that enough trans fluid drained in the extension housing that the seal could not hold it all back. Also some trans yokes have a small hole in the rear and if enough trans fluid enters the extension housing it could wick it's way along the output shaft and leak out the small hole in the yoke.

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Old 03-29-2011, 08:36 AM
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X2 what Vince said.

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Old 03-29-2011, 09:00 AM
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The last thing to get lubed on your tranny is the tailshaft bushing. It needs fluid or it will melt to nothing causing vibration. The small puddle of fluid is your first clue that the rear seal is worn. If your not having any problem with vibration, more than likely, it's the seal. Now would be a good time to replace it before it get's worse. Easy job just like a wheel seal. Just be sure to rub a little fluid on it before you put the driveshaft yoke back in so it's not dry from the git go.
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