Denali vs. Suburban 2500

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Moxiedog

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We currently have a 09 burb with the 5.3 and 3.42 gearing. We just got a camper which is about 7500 pounds fully loaded, so we are looking to upgrade towing vehicles. I would likely trade the 09 so this would be my daily driver. Would the 6.2 denali xl pull the load fine, or should I look at a 3/4 ton with the 6.0? It looks like the 3/4 tons came with either 3.73 or 4.10. What gears are available for the denali xl?
 
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Moxiedog

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I should note that we will tow approx 2500 miles a year, mostly flat, rolling plains. Other than that, probably another 10-12k split 50-50 city highway.
 

Mayhem

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I say go with the Denali. If you used it 3/4 of the time towing then go 2500
Other than that, the 6.2 should haul it with no problems
 
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Moxiedog

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Thanks. I found a 07 Yukon XL 2500 with the 6.0 and 4L80e transmission. Low miles and good price, but should I hold out for the 6 speed?
 
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Moxiedog

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Noticed on the Carfax that the intake gasket was changed at 58k and again at 68k along with the head gaskets and "engine/power train computer/module". ECM? Is this a huge red flag?
 
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Moxiedog

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The starter was also replaced at 68k. I'm wondering if they were throwing parts at a non start issue. If it were overheating related, I'd expect to see water pump, t-stat, radiator and the like. Am I on the right track? I left a message for the shop that did the work to see if they could shed any light on the issue. This truck is about an hour away. Worth checking out, or run away?
 

OneTwo

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I have a 2000 Suburban 2500 with the 6.0L and 4L80E combo and it has been the most reliable vehicle I've ever owned. 212,000 miles on (as far as I know) the original engine and transmission. It is terribly slow and gets about 11 MPG when you aren't towing anything and are keeping your foot out of it. Single digits if you're towing anything or trying to get somewhere in a hurry.

I recently bought a 2007 Denali with the 6.2L and 6L80E and that is a fantastic combination. It's far more enjoyable to drive than the 6.0/4L80 and regularly returns 14-15 MPG. I haven't towed much of anything with it yet, but my friend took it on a 1000 mile trip with a '64 Bel Air on a trailer behind him and said it did fine.

Since it's going to be your daily transportation, I'd say go Denali. It's rated to tow 7900 lbs and you will enjoy driving it to work every day (and putting gas in it) MUCH more than a 2500 Burb. I would consider adding helper bags in the back and a trailer brake controller, just to make towing that much easier.
 
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Moxiedog

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That mechanic called me back. He said they replaced the intake gasket because the person who replaced it before screwed it up. He said it didn't start when it came in, and they couldn't even get the alternator to turn because of the ECM being spiked. They saw that the head gasket was leaking, so they took the head off, and sent it in and had a valve job done and put a new gasket on it. Is it weird or is it bad that they only did one head? That was 10000 miles ago. Give it a look or run away?
 

OneTwo

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That mechanic called me back. He said they replaced the intake gasket because the person who replaced it before screwed it up. He said it didn't start when it came in, and they couldn't even get the alternator to turn because of the ECM being spiked. They saw that the head gasket was leaking, so they took the head off, and sent it in and had a valve job done and put a new gasket on it. Is it weird or is it bad that they only did one head? That was 10000 miles ago. Give it a look or run away?
I'm no mechanic, so I don't know if only doing one head is okay or not...

Typically, I'd say any maintenance/repairs is good maintenance/repairs, but the fact that it was obviously worked on by an amateur who messed things up makes me wonder what else that guy might've "fixed."

I would go look at the Denali first, then go check this thing out if you don't like it.
 
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Moxiedog

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I'm no mechanic, so I don't know if only doing one head is okay or not...

Typically, I'd say any maintenance/repairs is good maintenance/repairs, but the fact that it was obviously worked on by an amateur who messed things up makes me wonder what else that guy might've "fixed."

I would go look at the Denali first, then go check this thing out if you don't like it.
Thanks for the input. I have a buddy who is a mechanic at a Chevy dealership, so he is going to give it a look.
 

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