The 2005 GMC Sierra 2500 SLT 4X4 is a rugged and reliable crew cab pickup truck with a 6.6L Duramax Turbo Diesel engine, offering impressive power and fuel efficiency. This 2-owner vehicle features a gray interior, automatic transmission, and 8 cylinders for smooth and responsive performance. With 275,000 miles on the odometer, this GMC Sierra 2500 HD is a solid choice for those looking for a heavy-duty work truck that provides durability and strength.

This truck is:

2005 GMC Sierra 2500HD Crew Cab 4x4.

6.6L LLY Duramax

275k miles.

Good running older diesel with a lot of money put into supporting parts and upgrades.

No current check engine light and no current trouble codes. No blow-by issues, cold starts are great and the balance rates are all in spec.

KNOWN ISSUES:
- Hail damage (mostly on hood with random dings elsewhere on vehicle)
- A very occasional “range shift inhibited” message
- Intermittent “service brake system” ding
- batteries are getting tired because all it does is sit in the garage

We are located in La Grange, WY. So, I added the photos of the hail damage from the storm last summer. That way, if hail damage is a deal breaker it will save you a trip. Honestly, if you replace the hood, the hail damage elsewhere on the truck isn't too noticeable/telling.

This is an older HD Duramax truck, not a new truck, but it has had a lot done to it and would make someone a solid work, tow, or daily-use diesel.

All upgrades have been done in the last 3y, the truck has less than 5k miles put on it in last 3y. Most of that was a cross country road trip.

Here is a list of the upgrades on the truck:

COOLING/AIR:
- XDP X-TRA Cool radiator XD295
- CSF 6007 intercooler
- XDP X-TRA Cool transmission oil cooler XD309
- Dorman 624-896 trans cooler line
- Fleece Allison trans cooler lines
- WC Fab thermostat housing kit
- Merchant water pump (plastic impeller) with cover and gaskets
- New GM front and rear thermostats
- Cold air intake

STEERING/SUSPENSION:
- 20x9 Raceline Stryker wheels
- LT275/55R20 Kumho Road Venture AT52 E tires
- Kryptonite front end rebuild package
- Kryptonite Upper Control Arms
- Kryptonite lower ball joints
- Kryptonite sway bar end links
- Kryptonite SRW wheel bearing
- Red-Head steering box
- PSC power steering pump
- Bilstein 5100 front shocks, rear shocks, and steering damper
- DHD power steering line upgrade kit
- GM low pressure return hose
- Longhorn Fab 2” traction bars

FUEL/INTAKE:
- AirDog II-5G lift pump
- HSP Max Flow Y-bridge and cold side
- HSP hot side tube
- PPE race fuel valve
- KC Turbos billet compressor wheel

OTHER:
- Fluidampr damper and bolt kit
- LML hydroboost upgrade
- EDGE CTS4 Insight
- Cadillac wood grain steering wheel
- Upgraded gauges
- Sony touch screen radio
- DHD CP3 regulator jumper harness
- PPE downpipe
- 5” turbo-back exhaust
- EPI Live AutoCal with tune files (the tune files are not installed) -- truck is, and always has been, on stock tune.

Message me for questions. I'm happy to help.