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11-20-2006, 04:15 PM
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CC Member
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Join Date: Feb 2005
Location: Oxnard,
ca
Cobra Make, Engine: superperformance, 427 side oiler
Posts: 178
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Not Ranked
speedometer (Smiths) gears
My search skills suck, I know I've seen a thread on this. I have a broken gear in the speedo, how many tooth gear do I need? 3.73 gear - 275/60-15. Where do I get one, send speedo - LA area?
Bill
__________________
... and when you start your Cobra its inner voice shouts at you "You f***ing assh*le, this time I'm going to kill you."
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11-20-2006, 04:48 PM
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CC Member
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Join Date: Oct 2006
Location: Des Moines,
IA
Cobra Make, Engine: SPF 545" stroked 460 - sold
Posts: 239
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Not Ranked
Mine went out last week - first the odometer could not be reset for a bit, then the speedo quit. Took it out and and inspected everything, the Smith's speedo mechanism locked up and took out the nylon gear in the right angle reverse adapter. I called around and had no luck in finding a repair source, several people told me to just replace it so I did. Got another one from Hillbank and is working fine now. If you find a source that repairs these I'd like to know who/where and any cost estimate. Thanks and good luck  |
11-20-2006, 05:00 PM
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CC Member
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Join Date: Feb 2005
Location: Oxnard,
ca
Cobra Make, Engine: superperformance, 427 side oiler
Posts: 178
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Not Ranked
The nylon gears are available, my (former - long story, not his fault, my schedule) mechanic received a replacement gear I just do not know where from. He threw it in the trash after my extended absence. He had no interest in starting over, even if I paid him twice.
Bill
SPF117
__________________
... and when you start your Cobra its inner voice shouts at you "You f***ing assh*le, this time I'm going to kill you."
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11-20-2006, 05:11 PM
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Regularly Offensive
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Join Date: Feb 2006
Location: yuba city,
ca
Cobra Make, Engine: spf
Posts: 1,231
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Not Ranked
Try //www.nisonger.com
913-381-1952
they work on all smith gauges
Worked of me
__________________
Ed
Too close for missles, switching to guns.........
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11-20-2006, 05:16 PM
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CC Member
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Join Date: Feb 2005
Location: Oxnard,
ca
Cobra Make, Engine: superperformance, 427 side oiler
Posts: 178
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Not Ranked
Thud - just on their website, will call tommorrow when time zones line up.
Thanks, Bill
__________________
... and when you start your Cobra its inner voice shouts at you "You f***ing assh*le, this time I'm going to kill you."
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11-20-2006, 09:09 PM
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CC Member
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Join Date: Feb 2006
Location: Wickenburg,
AZ
Cobra Make, Engine: SPF 2370, Dark Silver, Roush 402R
Posts: 118
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Not Ranked
I've had excellent results with Nisonger. Their gauges carry a 2-year warranty (coded somehow inside the instrument, I'm told). Very helpful guys.
Tom
__________________
I love it when a plan falls apart.
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11-21-2006, 08:46 AM
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Banned
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Join Date: Jan 2003
Cobra Make, Engine:
Posts: 1,085
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Not Ranked
Quote:
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Originally Posted by ezplans
My search skills suck, I know I've seen a thread on this. I have a broken gear in the speedo, how many tooth gear do I need? 3.73 gear - 275/60-15. Where do I get one, send speedo - LA area?
Bill
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If the gear is inside the speedo, I don't have an answer.
If it's the gear at the end of the speedometer cable that goes into the Tremec transmission, you'll need a 20 tooth gear, Tremec part number C1DZA, color: Black.
Here is a spreadsheet from Tremec that helps you figure it out and the Tremec gear part numbers sheet:
Click HERE |
11-21-2006, 08:53 AM
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CC Member
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Join Date: Jul 2004
Location: McMurray,
PA
Cobra Make, Engine: Superformance, 434, Paxton blown
Posts: 97
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Not Ranked
Thank you.
My speedometer is very optimistic..good for the ego but bad for the wallet. One of my winter projects was to figure out which gear I need. This saves me a bunch of searching.
Thanks
Mike
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11-21-2006, 09:41 AM
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CC Member
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Join Date: Feb 2006
Location: Arlington Hts,
IL
Cobra Make, Engine: SPF, KC 427
Posts: 424
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Not Ranked
You can order speedo gears from a ford dealer.
__________________
To my Cobra: - - when I'm with you - Oboy!
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11-21-2006, 10:32 AM
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Banned
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Join Date: Jan 2003
Cobra Make, Engine:
Posts: 1,085
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Not Ranked
Quote:
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Originally Posted by Poolw
You can order speedo gears from a ford dealer.
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That is right, but I believe they have different part numbers. But you can ask to see them and count the teeth. |
11-21-2006, 10:42 AM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Southern Connecticut,
CT
Cobra Make, Engine: SPF - 351W, 944 non-turbo
Posts: 2,105
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Not Ranked
The Ford Motorsports catologue has everything you need, including the formulas to figure out the color coded gears. $5.00.
Bob
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11-21-2006, 10:59 AM
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CC Member
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Join Date: Oct 2003
Location: Bainbridge Island,
WA
Cobra Make, Engine:
Posts: 709
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Not Ranked
Hmmm....I used a pink 19 tooth speedo gear for my Tremec with a 3.73 rear axel ratio. Tossed the mechanical speedo after 3 years for a direct replacement 180 mph reverse electronic speedo. No more gears, no more cables, no more wobbly speedo needle. Just a thought. Bought it from Nisonger for $390.
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