changing speedo? 85mph to 145mph?
Thread Starter
Senior Member
Joined: Mar 2002
Posts: 755
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From: Newport News, Va
Car: 84 Z28
Engine: GMPP 350 HO
Transmission: 700R4 + Shift Kit
Axle/Gears: Auburn Posi; Richmond 3:73 Gears
changing speedo? 85mph to 145mph?
how do i change the millage to read what i have???? anyone know how? and how do i install it? please respond soon i want to buy this speedo it's a good price.... Thanks Donnie
Last edited by zNucleaRz; Sep 27, 2002 at 12:15 PM.
Thread Starter
Senior Member
Joined: Mar 2002
Posts: 755
Likes: 0
From: Newport News, Va
Car: 84 Z28
Engine: GMPP 350 HO
Transmission: 700R4 + Shift Kit
Axle/Gears: Auburn Posi; Richmond 3:73 Gears
i need to rool it up!! like 40K miles up... i have heard i can remove the numbers also can i do that? and place mine in?
Last edited by zNucleaRz; Sep 27, 2002 at 12:25 PM.
Thread Starter
Senior Member
Joined: Mar 2002
Posts: 755
Likes: 0
From: Newport News, Va
Car: 84 Z28
Engine: GMPP 350 HO
Transmission: 700R4 + Shift Kit
Axle/Gears: Auburn Posi; Richmond 3:73 Gears
rolling it up so when i get it inspected on the title it will not show odometer fraud... the speedo i am gettinbg is 56K miles mine is 91K thats why i need to figure out how...
Senior Member
Joined: Sep 2002
Posts: 634
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From: Fort Meade MD
Car: 84 Z28
Engine: 355
Transmission: 700R4 with corvette servo
it's getting so close to 100,000 that it won't matter, because when you hit 100,000 they dont put the mileage on the title anyway. But I guess you do have 9,000 more to go.
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I don't know if this will help or not but...
I had a Ford Escort once and it had a cable driven speedo that was broken. I bought a replacement at a junk yard. I tried adjusting it to my actual mileage (less that the junk yard part). I used my electric drill.
You will need to find a small piece of plastic or metal to stick in the square hole in the back of the speedo and then in your drill. That will run your mileage up. (Plus it's fun to watch your drill do 100 mph).
It's been my experience that you can't make the odometer go backward. I took one apart once to try and set it and it never worked again. ($50 bucks down the tube).
I had a Ford Escort once and it had a cable driven speedo that was broken. I bought a replacement at a junk yard. I tried adjusting it to my actual mileage (less that the junk yard part). I used my electric drill.
You will need to find a small piece of plastic or metal to stick in the square hole in the back of the speedo and then in your drill. That will run your mileage up. (Plus it's fun to watch your drill do 100 mph).
It's been my experience that you can't make the odometer go backward. I took one apart once to try and set it and it never worked again. ($50 bucks down the tube).
Thread Starter
Senior Member
Joined: Mar 2002
Posts: 755
Likes: 0
From: Newport News, Va
Car: 84 Z28
Engine: GMPP 350 HO
Transmission: 700R4 + Shift Kit
Axle/Gears: Auburn Posi; Richmond 3:73 Gears
thanks i will try the drill idea... is there like any adapeter i need for the drill?
I took an aluminum pop rivit and tapped it with a ball peen hammer until it was square and fit in the hole on the back side of the speedo. You can try numerous things, be creative. I guess even a small piece of wood will probably work considering that there is no real force being put on it. You may also have to reverse the drill to make sure it is going the right direction.
Also, I would run mine a little then stop for a few minutes because I was afraid that the speed/friction would mess it up.
Good luck!
Also, I would run mine a little then stop for a few minutes because I was afraid that the speed/friction would mess it up.
Good luck!
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