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Discussion Starter · #1 ·
I have a no numbers matching 1966 Mustang, 2+2, 289 ci., 4 speed manual transmission with reverse to the left and up. The speedometer cable installs to the RH (passengers) side of the transmission. Is there something I can get or do to get the speedometer to work properly, and not run backwards?
 

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Hello.:) Reverse should be over to the left and down on your car. You either have a Hurst shifter or the shift lever is on upside down on the transmission. That wouldn't make the speedo run backwards, though. It could be that the speedo gear in the tail section of the tranny has been put on backwards. That would make the speedo cable turn backwards. There isn't any way to but the speedo gear on the cable on backwards. The clip that holds it wouldn't go on. Unless there's some backwards after market speed cable gear available that I'm completely unaware of, ( which is a possibility :gringreen) then you'll have to pull the tranny and flip the speedo gear on the output shaft around. Hope that helps.:)
 

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The speedo gear that attaches to the cable end also has teeth cut specifically for its rotation. Either right hand rotation or left. Also, as Veronica stated, the trans speedo gear could have been installed backwards. Are you sure that the speedo head is working?
 

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welcome to the site,enjoy!!!!
 

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Discussion Starter · #5 ·
Hello.:) Reverse should be over to the left and down on your car. You either have a Hurst shifter or the shift lever is on upside down on the transmission. That wouldn't make the speedo run backwards, though. It could be that the speedo gear in the tail section of the tranny has been put on backwards. That would make the speedo cable turn backwards. There isn't any way to but the speedo gear on the cable on backwards. The clip that holds it wouldn't go on. Unless there's some backwards after market speed cable gear available that I'm completely unaware of, ( which is a possibility :gringreen) then you'll have to pull the tranny and flip the speedo gear on the output shaft around. Hope that helps.:)
The speedo gear that attaches to the cable end also has teeth cut specifically for its rotation. Either right hand rotation or left. Also, as Veronica stated, the trans speedo gear could have been installed backwards. Are you sure that the speedo head is working?

Thanks for replying to me. The transmission is about the only thing I haven't had apart yet. Yes I do have a Hurst shifter and yes the miles are coming off every time I drive it.
 

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It's also possible the 4-speed you have came out of a different Ford vehicle. Also I don't think the angle cut teeth on the trans gear will matter.:scratchchin( see below)There were some Fairlanes with the speedo cable on the opposite side. My brother had one in his 69 Mach . It was like Christine! He switched tailshaft housings to solve the problem.

Say the slanted lines are your teeth. Turn them around 180 degrees and they still face the same direction.:headscratch: Of course they were lined up when I typed this.


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Discussion Starter · #7 ·
It's also possible the 4-speed you have came out of a different Ford vehicle. Also I don't think the angle cut teeth on the trans gear will matter.:scratchchin( see below)There were some Fairlanes with the speedo cable on the opposite side. My brother had one in his 69 Mach . It was like Christine! He switched tailshaft housings to solve the problem.

Say the slanted lines are your teeth. Turn them around 180 degrees and they still face the same direction.:headscratch: Of course they were lined up when I typed this.


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Thanks, that sounds like a possibility. I have no way to know what the 4 speed transmission came out of, it was there when I bought the car. I was once told that the 4 speed has a special speedometer gear assembly, and I should make sure I have the right one. But I sure don't know how to tell.
 

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Discussion Starter · #8 ·
Thanks, that sounds like a possibility. I have no way to know what the 4 speed transmission came out of, it was there when I bought the car. I was once told that the 4 speed has a special speedometer gear assembly, and I should make sure I have the right one. But I sure don't know how to tell.
 

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Discussion Starter · #9 ·
Thanks, that sounds like a possibility. I have no way to know what the 4 speed transmission came out of, it was there when I bought the car. I was once told that the 4 speed has a special speedometer gear assembly, and I should make sure I have the right one. But I sure don't know how to tell.
 
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