I just have a quick question about replacing the instrument cluster. Does the new cluster mileage become your new mileage? Or does it reset? How does that work?

Thanks in advance
Lisa

The milage on the replacement cluster will be your current milage...

If a new odometer can not be set or "flashed" to the car's true mileage, a sticker showing the mileage at which the odometer was replaced should be attached to the driver's side door post.

As far as I know, a new mechanical odometer for a 90-92 LS400 can not be set to the car's true mileage. New odometers for LS cars beginning with the 1993 model year can be "flashed" with the correct mileage but often a door jam sticker is used instead.

Failure of mechanical odometers on the 90-92 LS400 is common. The original odometer in the 90 LS I used to have failed at around 120,000 miles -- don't remember the exact mileage. The installer of the new odometer placed a sticker on the car's door jam showing the mileage at which the odometer was replaced. I think the sticker is required by either state or federal law.