BlueRidgeMark

No, that's a description of a mechanical odometer. Gears!

SatiricalHen

The electric one still has gears.... still not digital. 97 they went digital and those don't have gears.

RocketMouse

There are places that will legally change over ones that are of the older mechanical type. Digital ones I don't think they can.
Shops that will do it legally will note it when it is resealed and submit the change so that your title can stay intact as is. But those places may be few and far between. I just remember coming across them when I was searching about doing the swap on mine. But decided against it since mine is a '99 and digital.

ElMartillo

It’s been awhile, but if I remember correctly on a friend’s ‘89, which is cable driven, he took the speedometer apart to the point he could see the back of it and the odometer. There was a little c-clip at one end of the odo number barrels/gears. He removed this c-clip which allowed him to seperate the number barrels/gears just enough to change the numbers to match his actual mileage.

He also swapped clusters on a ‘96 that he owned, but it didn’t have a cable, nor that c-clip. Somehow he used a DeWalt drill to rapidly change the mileage to match his previous cluster. I can’t remember exactly how it was done but it worked. The new cluster was within 10K miles or so of his actual mileage and changing it mechanically like that didn’t take too long.

BlueRidgeMark

If you need to increase the mileage it's a piece of cake. Just chuck the end of the cable (it's square) into a drill motor and go. You do 140 miles an hour or so for a while until the odometer catches up to where you want to be.

In reverse, it depends on how old it is, and I don't know when it changed or if it's all mechanical odometers, but at least some of them are built to break if you try to rewind them. This is to prevent fraud. It used to be common for people to rewind them to get more money when selling them.