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Old 01-20-2014, 08:41 PM
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Default GMC sierra Dually life expectancy 8.1 Lt gas

I was able to recently purchase a 2001 GMC sierra dually from a friend for a very good price. The battery was dead and my buddy said he thought It had 200,000 miles on it. After purchasing the truck I put a new battery in and realized it had 285,000 miles on it. Motor was totally redone in 2005 under warranty supposedly. Seems to be really strong still.
Truck was used to run light loads from South Carolina to Florida on a weekly basis. I'm going to be using just to pull some trailers around town locally. Should I be concerned about the high mileage????

8.1 gas engine with automatic 5 speed Allison Transmission
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Old 01-21-2014, 06:37 AM
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Assuming you got a great price on it considering the mileage.A well maintained GM that has used only synthetic lubricants can give outstanding life.Keep a few thou in reserve for unforseen replacements and just drive it.
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Old 01-21-2014, 07:31 AM
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Got it for 1k...thats the only reason I bought it before testing it.
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Old 01-21-2014, 08:51 AM
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Got it for 1k...thats the only reason I bought it before testing it.
That qualifies as theft.
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Old 01-21-2014, 09:14 AM
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Got it for 1k...thats the only reason I bought it before testing it.
Did you use a gun to obtain the truck?

The only way to tell how long it will go is to run it till it blows. Change the oil often and make sure you flush the radiator and use distilled water, not tap. There have been other Chevy motors that have run to 1 million miles.
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Old 01-21-2014, 09:48 AM
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I know of a local saw shop that has one with 400k on it. I have one with 160k on it Have the pump in the transfer case upgraded.
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Old 01-21-2014, 11:50 AM
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The transmission is worth $1,000!

Run it till it blows and rebuild it.
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Old 01-21-2014, 12:39 PM
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Just for reference my dad just paid $10k for a 2002 gas dually with 100,000 miles on it.....

Needless to say you stole the truck and the shirt off the guys back....
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Old 01-21-2014, 02:37 PM
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weeeew...makes me feel good. I bought a new water pump and went ahead and replaced it and plan on changing the trans filter and fuel filters. Other than the plastic fender having a crack in it, its in pretty good shape. I've always gotten rid of cars before they hit 100,000 and seeing 285,000 scared the crap out of me. I just didn't want to chance the risk of hauling the boat 3 hours and being stranded on the side of the road.

NO GUNS involved...believe it or not
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Old 01-21-2014, 03:04 PM
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Seems like the 8.1's have an oil consumption issue which is more bothersome than dangerous. Big deal on the motor....

So it's been driven to the moon (approx. 240,000 miles) it's got another round trip in it before it's really tired.
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Old 01-21-2014, 03:10 PM
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Funny that it he guy was off 85k on the odometer reading???

1k who cares.
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Old 01-21-2014, 04:50 PM
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Quote:
Originally Posted by PalmettoTrooper View Post
weeeew...makes me feel good. I bought a new water pump and went ahead and replaced it and plan on changing the trans filter and fuel filters. Other than the plastic fender having a crack in it, its in pretty good shape. I've always gotten rid of cars before they hit 100,000 and seeing 285,000 scared the crap out of me. I just didn't want to chance the risk of hauling the boat 3 hours and being stranded on the side of the road.

NO GUNS involved...believe it or not
Drive it like you stole it......well in your case...

Don't worry about the high mileage. Maintain it and it'll keep going. I put 250k and 275k on my last 2 gas burners. The one with 250k was rear-ended and totaled but was still a VERY dependable daily driver until it's untimely demise. I sold the other one at 275k just because I was tired of driving it. Saw it still running the roads 3-4 year after I sold it.

I have 304k on the one I'm driving now but it's a Duramax.

Not sure how much of a mechanic you are but consider dropping the truck at your favorite shop and have them check everything - especially front-end parts and U-joints. See what they come up with.
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Old 01-22-2014, 04:48 AM
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U just scored one of the best heavy load haulers & low maintenance trucks GM has built. The reason it has been ruffed up for 285,000 & still kickin is because it was built rite to start with.
You will by hauling with confidence ! trust me
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Old 01-23-2014, 01:06 PM
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My 2001 Silverado has been nothing short of tuff as hell. I think the phrase "they don't make em like they used to" applies here
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Old 01-23-2014, 01:20 PM
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If after, you don't like the truck, I'm sure you would have no problem selling it for your money back.
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