I pick up gauge clusters with the trans temp from 01-06 GM SUVs & Trucks at the local pick your part to sell. Typically with the age of these, the mileage is high, and up over 200k. What sort of equipment is required to be able to adjust mileage to match a buyer's mileage on their cluster? I'd like to be able to work on the clusters I acquire and can figure out technical equipment pretty easily. Anyone BTDT and can point me in the right direction for this? Thanks!