Had a question about a '04 lb7 im looking to buy. the dealer is askin 15,500 but the mileage is unknown. also, a rollover code has been sent. i guess those are the main problems with it. anyone have any idea if anything can trigger a rollover code other than the truck actually being flipped? not really looking to buy one thats been wrecked but carfax doesn't say anything about it and i can't find any frame damage. thanks for your help