2003 2500 Duramax LB7 diesel 4X4 with the 1 ton rear end. I've had the truck professionally detailed with paint correction. I've invested over 13k in the truck, over 4K in repairs. I have receipts for all work. Some of the things I've done: new windshield, new carpet and headliner, new gauges and HVAC controls, new batteries, new drop-down nerf bars, new trailer brake controller, new receiver hitch and plug, and new weathertech mats front and rear. All injectors replaced at 163k miles by previous owner, my co-worker. The truck is lifted 2" in the front and 1" in the back. A/C, heat, and 4 wheel drive all work great. I just put 3K in new wheels and tires and had the wheels ceramic coated prior to installing the tires. I also had an alignment done, oil change, and some front end work done. This truck has been ultra reliable and drives great. A couple new items to add are new 4" turbo back exhaust and new Redhead steering box and new Bilstein shocks up front. The truck looks really good