2000 Chevrolet Tahoe

i'm selling my 2000 Chevy Tahoe it runs and drive great I have changed the radiator water pump, alternator oil change, spark plug wires. Those all have been done in the last month or two. I don't know if it's the transfer case or the rear end going out it has dual exhaust, but it has a muffler leak. It has 307,000 miles. It's been my daily driver. Just don't wanna put no more money into it. It's a good running vehicle nothing wrong with the motor at all the car drive $800 the cars in my name, but I can't find the title so will have to meet me at the DOL to transfer