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Old 09-18-2017, 10:27 PM   #1
Bargy1
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Join Date: Dec 2014
Location: Fowler, CA
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Powerglide Speedometer Leak

Finally getting the truck back together after a complete frame off restoration. Powerglide transmission was rebuilt a few years ago and I filled with transmission fluid to keep the gaskets from drying out. I attached the speedometer cable this weekend and now I have a leak where the speedometer cable connects to the transmission. Any ideas?
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Old 09-18-2017, 10:57 PM   #2
DPowers
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Location: Parrottsville, TN
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Re: Powerglide Speedometer Leak

O Ring bad would be my guess.
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Old 09-18-2017, 11:55 PM   #3
rvrfoot
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Re: Powerglide Speedometer Leak

Make sutre the o ring is in there. Then make sure its not ripped,broken.

Last edited by rvrfoot; 09-21-2017 at 10:46 PM.
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Old 09-21-2017, 09:02 PM   #4
mMad Dawg
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Re: Powerglide Speedometer Leak

The o-ring may have worn a groove in the plastic driven gear. I had to replace one on a 400 to get it to stop leaking. You could also try putting 2 o-rings in and just move the clip back that holds it in.
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