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Old 01-14-2006, 09:21 PM   #1
4tiresngas
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Question Transmission Fluid on Speedo Cable Connectio

I keep seeing transmission fluid pooling on the speedo cable connector where it connects to the transmission. The cable is only 6 months old or so. I changed the pan gasket and the o-ring on the passing gear to fix the other leaks.

Any idea what I need to do to fx this?
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Old 01-14-2006, 09:36 PM   #2
Palf70Step
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Re: Transmission Fluid on Speedo Cable Connectio

It's probably the O-ring around the fitting that slides into the tranny. That is what my leak was, both on the manual and the automatic. I took mine out and took it to AZ and found an o-ring that fit.
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Old 01-14-2006, 09:38 PM   #3
4tiresngas
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Re: Transmission Fluid on Speedo Cable Connectio

Hey Bill, where did you get the o-ring at? Are you talking about the speedo ratio adapter (not sure if that is the formal name)? But, there is a bracket with a single bolt holding it in.

Thanks
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Old 01-14-2006, 10:09 PM   #4
Palf70Step
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Re: Transmission Fluid on Speedo Cable Connectio

I got mine an Autozi\one from the pile of stuff. I don't know what it's format name is, but on my manual I just called it the "silver bullet thing with the speedo gear on it" . My automaitc is on the floor right now, and I haven't pulled it out on this one to see what the slide in part looks like. I did an automatic years ago, same way (AutoZone), I just can't remember what the part looked like that I pulled out. But it is the part you screw the cable onto, and yes they have a little bracket with one bolt holding it in..
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Old 01-15-2006, 01:46 AM   #5
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Re: Transmission Fluid on Speedo Cable Connectio

I had the same problem. I called a tranny shop and they said we got them. So I brought them the housing and they installed a new one on for me. Now no more leaks. Hope that helps
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Old 01-16-2006, 01:35 AM   #6
72MARIO
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Re: Transmission Fluid on Speedo Cable Connectio

I installed a new O ring seal along with a new cable mine still drips. It's driving me nuts.
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Old 01-16-2006, 05:57 PM   #7
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Re: Transmission Fluid on Speedo Cable Connectio

I had this problem and found out it could be and was three things. First, as already mentioned, was the o-ring. There is also a seal on the inside of the fitting that keeps oil from getting aorund the gear. I was able to get one at a local transmission shop. The third thing is the gear itself. If there is wear on it, a new seal won't do any good. Had to order the gear. Anyway, once I replaced all three peices I didn't have a leak problem. Hope this gives you an idea what to look for.
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Old 01-16-2006, 06:24 PM   #8
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Re: Transmission Fluid on Speedo Cable Connectio

It must be the little lip seal that the speedometer driven gear slides through. Probably have to get it at a tranny shop or GM. You can see that seal if you take off the speedo cable and look at the plastic gear with the square hole. There is a little lip seal there between the gear and the gear housing.
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Old 01-17-2006, 01:56 AM   #9
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Re: Transmission Fluid on Speedo Cable Connectio

The housing and the gear both can wear, if replacing both seals doesn't fix it then get a new gear and housing.
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