Just turned 100k. Even though this truck has been meticulously maintained and never abused, it has had the transmission replaced (at 67K), sound system (at 25K), intermediate steering shaft (3 times), HVAC controls (at 75K), front rotors (2 times), instrument panel (at 70K), steering wheel control modules replaced (80K), Evaporative Emission Canister Vent Valve (at 124K), upholstery (at 124K), etc. There is so much slop in the drive train that I would never consider using as a tow vehicle. Good for going to the dump and grocery shopping. Limited slip (rear) is demonstrating signs of impending failure, just a matter of time.
I purchased this vehicle used. It now has nearly 155,000 miles on it needing a little TLC and routine maintenance. It has needed little things like tune up, brakes, fluids changed, shocks and tires. This truck has exceeded all of my expectations for a higher mileage vehicle. It does not leak fluids or use and oil. I plan to put another 50K on it before even considering purchasing another truck. I have two friend that also own 2004 GMC Sierra 1500 with over 200+K miles on each. They both run very well needing only routine maintenance.
bought the truck at 120k miles 4 years ago. today i have 205k on it as my daily driver to work and back (80mile round trip highway) and to the day all ive had to replace was an alternator. towed a boat for 3 years weighing aprox. 3800lbs with easy and stability. this truck is absolutely bullet proof and i would buy it again in a heart beat. note: i also just bought a 2015 sierra all terrain edition last December and to be honest i like driving my 2004 sierra better! absolutely great all around truck!!!
This truck is a life saver for me, got into a car accident was going 85 and hit a telephone. I truly believed it saved my life, i just bought another one same year. Truck has a amazing build! i would tell anyone about this truck and how amazing it is.! i absolutely LOVE it.