Transmission leak/question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cbenney · 03-08-2014, 05:50 AM

Hey Everyone – here is a picture of my trans… Looks like I have a leak and upon further inspection I think the leak is coming for this cable that attaches from to the side of it. Honestly I am not sure what this cable is or what it does. Is this something I can easily replace? I have not messed with it yet – is it easily removed?

Thanks Chris

ABNGRNT13 · 03-08-2014, 06:25 AM

Clearer picture? The only cable I can think of is the speedo cable..... Trans type? Year? Driver or passenger side?

cbenney · 03-08-2014, 06:30 AM

I believe you are right about the speedo cable. That is what I though originally. The truck is a 68 c20 250 L6. This is located on the driver side. I can take some pictures later today that are clearer when the sun comes up...

Also I believe it is a Saginaw 3 speed transmission...

Chris

ABNGRNT13 · 03-08-2014, 06:42 AM

If its the driver side back near the tail shaft, its the speedo. The cable itself unscrews, and the drive gear and housing should have one bolt going into the trans. Its sort of like a distributor hold down. Take that off and wiggle it out. It should have a rubber o- ring on it to seal it. Hope this helps

geezer#99 · 03-08-2014, 10:46 AM

And here's a link to see what the speedo housing looks like.
It has an outer oring to seal the housing to the tranny and an inner oring to seal the speedo gear.
http://www.ebay.com/itm/Muncie-T10-4...-/321102167325

Tx Firefighter · 03-08-2014, 10:54 AM

Quote:

Originally Posted by geezer#99

And here's a link to see what the speedo housing looks like.
It has an outer oring to seal the housing to the tranny and an inner oring to seal the speedo gear.
http://www.ebay.com/itm/Muncie-T10-4...-/321102167325

That's a good kit. Maybe a bit high priced, but complete and a hassle free way of getting everything at once. I don't know why the guy includes extra seals and o ring though. The new bullet comes with new ones already.

The part number for a new bullet with seal and o ring is ATP YA-1. You can get them many places including a Amazon or your favorite parts store.

cbenney · 03-09-2014, 08:09 AM

Thanks, just ordered it up!

Chris

geezer#99 · 03-09-2014, 09:40 AM

When you get the new one make sure the inner seal is tapped all the way in.

slikside · 03-09-2014, 02:07 PM

subscribed

03-08-2014, 05:50 AM	#1
cbenney Registered User Join Date: Nov 2011 Location: East Longmeadow MA Posts: 34	Transmission leak/question Hey Everyone – here is a picture of my trans… Looks like I have a leak and upon further inspection I think the leak is coming for this cable that attaches from to the side of it. Honestly I am not sure what this cable is or what it does. Is this something I can easily replace? I have not messed with it yet – is it easily removed? Thanks Chris Attached Images

03-08-2014, 06:25 AM	#2
ABNGRNT13 Registered User Join Date: Dec 2013 Location: Fort Mitchell, AL (out the back gate of Ft Benning) Posts: 140	Re: Transmission leak/question Clearer picture? The only cable I can think of is the speedo cable..... Trans type? Year? Driver or passenger side? __________________ SSG Walker Harris '72 Cheyenne Longbed '66 Panel '66 Short Stepside '65 Short Fleetside

03-08-2014, 06:30 AM	#3
cbenney Registered User Join Date: Nov 2011 Location: East Longmeadow MA Posts: 34	Re: Transmission leak/question I believe you are right about the speedo cable. That is what I though originally. The truck is a 68 c20 250 L6. This is located on the driver side. I can take some pictures later today that are clearer when the sun comes up... Also I believe it is a Saginaw 3 speed transmission... Chris Last edited by cbenney; 03-08-2014 at 06:37 AM.

03-08-2014, 06:42 AM	#4
ABNGRNT13 Registered User Join Date: Dec 2013 Location: Fort Mitchell, AL (out the back gate of Ft Benning) Posts: 140	Re: Transmission leak/question If its the driver side back near the tail shaft, its the speedo. The cable itself unscrews, and the drive gear and housing should have one bolt going into the trans. Its sort of like a distributor hold down. Take that off and wiggle it out. It should have a rubber o- ring on it to seal it. Hope this helps __________________ SSG Walker Harris '72 Cheyenne Longbed '66 Panel '66 Short Stepside '65 Short Fleetside

03-08-2014, 10:46 AM	#5
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,777	Re: Transmission leak/question And here's a link to see what the speedo housing looks like. It has an outer oring to seal the housing to the tranny and an inner oring to seal the speedo gear. http://www.ebay.com/itm/Muncie-T10-4...-/321102167325

03-09-2014, 08:09 AM	#7
cbenney Registered User Join Date: Nov 2011 Location: East Longmeadow MA Posts: 34	Re: Transmission leak/question Thanks, just ordered it up! Chris

03-09-2014, 09:40 AM	#8
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,777	Re: Transmission leak/question When you get the new one make sure the inner seal is tapped all the way in.

03-09-2014, 02:07 PM	#9
slikside Registered User Join Date: Jun 2010 Location: San Diego Co. Posts: 1,193	Re: Transmission leak/question subscribed __________________ 1972 Chevy C-10, SWB, Fleet, 350/350, PS, PB, HEI, mostly stock, Survivor.



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