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80 Speedo Questions

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Old May 30, 2018 | 11:40 PM
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From: Moyock NC
Default 80 Speedo Questions

I have a 79 Speedo and the faceplate. Is it possible for me to just put the face plate on and change the speed gear in the tranny? I have been told the 79 Speedo is junk due to plastic parts but I really do not know if that is really the case.

The 79 Speedo I have has a broken needle and the person I spoke to suggested I ship both of them to him. He said it will make a rebuild easier because of having parts if needed.

To me it sounds a lot easier to just put the 79 faceplate on and change a gear if that is possible.
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Old May 31, 2018 | 11:22 AM
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From: Moyock NC
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Someone should be able to answer this as I know I am not the only that has done this.
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Old Jun 1, 2018 | 07:02 PM
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I don't see why you couldn't interchange parts between the two... they're both still cable-driven, aren't they ? This video from Willcox gives a good idea how everything comes apart and goes together. Also, if you aren't already aware of it, there are 2 speedo drive gears, the one in the tail of the transmission (drive gear), and the one in the speedo pickup on the trans (driven gear). There are a range of driven gear sizes that are interchangeable, so altering the ratio is easy to do without having to get into the trans to change the drive gear.

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Old Jun 2, 2018 | 11:07 PM
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Thanks that clears things up for me.
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