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Old 09-28-2014, 06:32 PM   #1
Murfdawg
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Join Date: Feb 2014
Location: Cranfills Gap Texas
Posts: 33
Wink 4 speed manual leaks

I have a 75 GMC 3/4 with a manual 4 speed( original with the granny 1st).
I just had the transmission rebuilt by a reputable shop while I was restoring the truck. It was out of the truck and so all work was done on a bench. It was without gear oil when I installed it. I put 80/90 oil in it and filled it to the point where it just ran out.
Now the transmission is leaking and it even looks like oil sprayed out the top of the transmission. Of course now I have oil on the clutch.
Is it possible I overfilled it? Occasionally I hear a noise which I though was speedometer cable chatter which would go away after a few miles. Any ideas?
Thanks
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