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Old Jun 5, 2010 | 01:02 AM
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Default Speedometer gear

Hi Gents
I'm hoping you can help. I'm running a 4 speed with a Gear Vendors Overdrive unit. The O/D unit uses a Turbo 400 style speedometer drive. My question is can I figure what gear is needed in the O/D ahead of time if I know the tire diameter? The gizmo that holds the cable has some numbers on it. I have no idea what they mean Like 41,42,43,44? Anyone? Help??
Thanks

Jim
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Old Jun 5, 2010 | 07:06 PM
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Bro Inc
Thanks so much for the reply and the link. Is the installed DRIVE gear always the same?
If so, how many teeth does it have? I can call GV next week, just thought I'd try to gain as much useful info ahead of time as possible. I just want it (the speedo) to be close.
Thanks again
Jim
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Old Jun 5, 2010 | 07:10 PM
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Bro Inc
I think I figured it out. I'll just look at the color of the drive gear inside the OD and match it to the formula. Sound right?
Thanks again
Jim
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