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#1 |
An American Soldier
![]() Join Date: Feb 2005
Location: Grumolo D' Abadessee, Italy
Posts: 503
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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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Dan dan.brue@us.army.mil |
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#2 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,924
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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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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! Last edited by Palf70Step; 01-14-2006 at 09:37 PM. |
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#3 |
An American Soldier
![]() Join Date: Feb 2005
Location: Grumolo D' Abadessee, Italy
Posts: 503
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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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Dan dan.brue@us.army.mil |
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#4 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,924
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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"
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__________________
Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! Last edited by Palf70Step; 01-14-2006 at 10:10 PM. |
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#5 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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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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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#6 |
Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,052
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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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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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#7 |
Registered User
Join Date: Aug 2005
Location: Brentwood, TN
Posts: 23
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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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#8 |
Registered User
Join Date: Oct 2005
Location: Northern Arkansas
Posts: 1,136
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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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#9 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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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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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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