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ATF leak at transmission speedo cable?

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Old 05-15-2004, 07:55 AM
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Car: 86 IROC
Engine: SC'ed 350
Transmission: 700R4
Axle/Gears: 4.11 12bolt
ATF leak at transmission speedo cable?

I've had a leak ever since I bought this car last fall so I cleaned up everything so that I could tell where it's coming from. It looks like it's coming out of the part where the mechanical speedo cable connects to. It's coming out where the silver two prong fork is holding something.

Is there a seal in this location?


Thanks

Joe
Old 05-15-2004, 10:38 AM
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ede
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yep there's a seal at that location
Old 05-15-2004, 06:36 PM
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Car: 86 IROC
Engine: SC'ed 350
Transmission: 700R4
Axle/Gears: 4.11 12bolt
Well I started to remove everything so that I could get a new o-ring for the speedo gear housing and I noticed something. The housing is all messed up. It's real brittle and it's crumbling into many pieces. DOH! No wonder it's leaking!

Ok, I need a new speedo housing or sleeve, whatever they call this thing. Of course, nobody stocks this type of item so I'm just going to order it from rockauto.com, gmpartsdirect.com or somewhere. I just need to know what to get. So far I think I need this part.

ACDELCO # 12338069

RETAINER, SPEEDO DRVN GR SLEV w/4-SPD A/TRANS(MD*)


???????
Is this what I need?

Part where the metal fork holds in and the speedo cable screws onto.

Thanks
Old 05-15-2004, 10:27 PM
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jmd
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
how many teeth are on your driven speedo gear? I have a sleeve if it's 41 to 45 teeth.
Old 05-16-2004, 03:25 PM
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This site has some speedometer gear info:
http://www.bowtieoverdrives.com/cata...BCAT&CATID=DA2
Old 05-16-2004, 06:31 PM
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Car: 86 IROC
Engine: SC'ed 350
Transmission: 700R4
Axle/Gears: 4.11 12bolt
I'm confused, do I need a sleeve or a housing? Or is that the same thing?

I need the platic part that the retainer holds on and where the speedo cable threads onto. I've seen other posts where others have bought a new one and it was aluminum.
Old 05-16-2004, 06:52 PM
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jmd
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
not 100% on the 700-R4 / TH350-C gears, but I know that I have pulled 200-4R parts with a steel sleeve / gearshaft combo, and plastic sleeve / gearshaft combo. Not mixed. If you have a plastic gear, plastic may be the way to go.
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