Good afternoon to all, I new on forum I own two 97's one Tahoe and GMC. My question. Is there any truth to GM exchanging your vehicle for new pick-up after hitting the mileage of 500,000. I have heard this for years but I have not talked with anyone that has had the exchange. I am the only owner of a 97 Tahoe with 405,000 miles and plan to continue to drive it.