I have a 2004 F150 with about 309,000kms on her. I just did a transmission rebuild. Some small problems but a very solid truck. I plan on working with her until the wheels fall of catastrophic engine failure. I do take very good care of her. Change fluids when necessary. If i buy something new now, it will do the same job but cost me double per month to run a vehicle. I say keep the vehicle until its not worth repairing.