i just purchased a used instument cluster for my 99 accord and it works great, but the odometer has about 100,000 miles more on it than my old one. does anyone know if i can swap the odometer with my old one, or if if can be reprogramed to show the actual milage of my car. thanks!

In most states it HAS to been done by a tech for legal reasons.

from honda:

Can Odometer Mileage Be
Changed to Match Original?
If you're replacing a speedometer, odometer, or
the printed circuit board, it is possible to add
mileage to the odometer so the vehicle's mileage
stays true. You'll need to order a replacement
speedometer, odometer, or printed circuit board,
and sublet the work to a speedometer shop that's
qualified to change the odometer reading. If you
can't find a shop in your area that can do this
work at a reasonable cost, here are two shops
we're aware of:
SPECMO Enterprises
32655 Industrial Drive
Madison Heights, MI 48071
800-545-7910
Palo Alto Speedometer, Inc.
718 Emerson Street
Palo Alto, CA 94301-2410
650-323-0243
If you use one of these shops, you'll be instructed
to send in the replacement component along with
the mileage that you'd like displayed. After the
mileage is added, you'll get the component back
for installation in your customer's vehicle.
Make sure you check with your state Department
of Motor Vehicles (DMV) for any disclosure
requirements. You may still need to apply a
Mileage Disclosure sticker or provide a True
Mileage Is Unknown (TMU) notification.

I doubt anyone will do it over the mail, because you could take your cluster out and just drive without anything in there and increase your mileage. Also, I thought that the little LCD bubble that holds the mileage info is swappable?