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Author Topic: '77 K20 speedo adapter  (Read 1496 times)

Offline GregL

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'77 K20 speedo adapter
« on: February 09, 2016, 02:34:26 PM »
Hi Guys,
                   My speedo cable adapter at my T-case is leaking pretty badly. Does anyone offer a rebuild kit for these? I think it would just be the O ring and small gasket. Or does anyone know of a good source for a new one?
Thanks, Greg
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Offline hatzie

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Re: '77 K20 speedo adapter
« Reply #1 on: February 12, 2016, 04:43:45 PM »
Quote from: GregL on February 09, 2016, 02:34:26 PM
Hi Guys,
                   My speedo cable adapter at my T-case is leaking pretty badly. Does anyone offer a rebuild kit for these? I think it would just be the O ring and small gasket. Or does anyone know of a good source for a new one?
Thanks, Greg
It's not the little gearbox.  Those aren't super sealed.  The o-ring in the driven gear adapter in the tailshaft housing is leaking.  Probably the transfer case vent is a little gummed up too.

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Offline GregL

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Re: '77 K20 speedo adapter
« Reply #2 on: February 13, 2016, 04:38:59 AM »
I'll check the vent. Thanks.
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Offline GregL

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Re: '77 K20 speedo adapter
« Reply #3 on: February 14, 2016, 06:06:33 PM »
You were right hatzie,  8) thanks. The inner o-ring was bad. Replaced today and cleaned the breather while I was at it.
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