2005 GMC Sierra 1500 SLT

Selling my truck as I upgraded to a newer one. I've had it for 11 years and it treated me well. Leaks a little bit of oil and the cluster info has an electrical gremlin. Info cluster display comes and goes that displays mileage. Truck has roughly 343000. Engine make a ticking sound. Recently installed new tires (about a year old), new spark plugs and wires( about 8months) new O2 sensors (about 6months ago), new battery in October, new windshield in October.oil changes done with with synthetic every 6000km or 3 months. It's a good work truck. It's 20 years, and it shows it with a bit of rust here and there. The passenger mirror plastic is broken but the electronics still work.