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  '64 1/2 to '73 -- The Classic Mustang
  Speedo gear compatability?

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Author Topic:   Speedo gear compatability?
stang106
Gearhead

Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 09-23-2002 06:14 PM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
I changed the gear from a 17 to an 18 and now the speedo is only half as bad as the error was. The #19 has a shorter 'spindle' that the square cable goes into so I did not try it. What do I do now?
Dave

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'70 ragtop Stang
351W - 13.70 @104.

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kcode
Gearhead

Posts: 2623
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 09-23-2002 10:36 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
Check to make sure it has the same angle on the teeth. Right hand or left hand, I've taken long ones and cut the end down to make short ones, if the c-clip works and holds it in place try it.

Mike

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stang106
Gearhead

Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 09-24-2002 12:00 AM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
The original I took out is long! What do I do with a short one?
Dave

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cpmaverick
Moderator

Posts: 1568
From: Auburn, AL.
Registered: Jan 2000

posted 09-24-2002 06:43 AM     Click Here to See the Profile for cpmaverick   Click Here to Email cpmaverick     Edit/Delete Message   Reply w/Quote
I've interchanged them both ways. It might not be the best idea, but it does work short term. Seems I change transmission types or rearend gears so often I don't get a long term test

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stang106
Gearhead

Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 09-24-2002 12:23 PM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
But the square drive seems to be too long to fit in the short gear, do I cut it down?
Dave

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Katherine
Journeyman

Posts: 38
From: Albany, GA USA
Registered: Sep 2002

posted 09-25-2002 05:23 PM     Click Here to See the Profile for Katherine   Click Here to Email Katherine     Edit/Delete Message   Reply w/Quote
stang106
are you saying that your speed-o-cable is long at the end that goes into the speed-o gear? I don't suggest cutting the cable-it unravels and it won't be good.I did that before.
I had a gear that was too short,so I cut the end off of the gear,(it opened it), so that the cable actually extended past the gear,and then the c=clip went in place-it worked. I am not suggesting you do this, it was on my 67. In the 66 my speedometer is off by 10MPH at 70MPH,(it reads 70 and you are only going 60) I was hoping you would have success changing gears, so I would try it too.

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stang106
Gearhead

Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 09-25-2002 09:37 PM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
Katherine,
Nice to see another RN as a Mustang enthusiest! I will think about cutting the end off the gear, I have a few other places to look at their gears and will try to find another long one. Its a pain in the butt to have the speedo out on the highway.
Dave

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'70 ragtop Stang
351W - 13.70 @104.

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