Newby here, I have a question on Odometers

[mustangmama]

Hello fellow Mustang Lovers,

Just found this site, hope someone may have an answer to a question that I can't find anywhere on the net.

Hubby and I have a '86 5.0, '92 4 banger, and are thinking of buying a '93 Cobra from a private owner.

Here's the question:

Do any of you know if someone replaces a Speedometer/Odometer on a Cobra that isn't a stock Odometer, would the tenth's of a mile show up in red? Hubby thinks he read somewhere when you replace Odometer, the tenths shows in red, kinda like a hint to a buyer that it has been replaced.

Really thinking about buying this car, but question this non-stock odometer, and if it has more miles than it says.

Thanks in advance for your replies.

Lisa