2021 GMC 6.6 diesel 4X4

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Rob&Deryl

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Mar 27, 2017
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Eastern Massachusetts
What do you want to tow?

check the yellow sticker on an example truck at a dealer and see what the payload is. Subtract the people and other stuff carried in the truck and also a couple hundred lbs for a hitch. Now you know how much pin weight you can carry. Plan on 20% or more of a trailer GVWR.

then, figure out floor plan and tell us what you want.

really, there are way too many variations out there.

oh, did I mention floor plan?
 

Rob&Deryl

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Mar 27, 2017
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1,089
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Eastern Massachusetts
Another thought.

Which GMC truck are you talking about (Not that many people here have brand new trucks)?
For example, my SIL has a Ram diesel 4x4 and I have one too.
His is 2500 Laramie and mine is a 3500 Longhorn. Neither is a dually. Very different towing abilities.
 

Mardo

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Joined
Feb 28, 2021
Posts
6
Location
Arkansas
Another thought.

Which GMC truck are you talking about (Not that many people here have brand new trucks)?
For example, my SIL has a Ram diesel 4x4 and I have one too.
His is 2500 Laramie and mine is a 3500 Longhorn. Neither is a dually. Very different towing abilities.
I want a GMC 2500HD with a diesel and 4X4. I'll go by a dealer and look at the yellow sticker. How much does your's weigh and how much is pin weight. I was looking at a Grand Design Solitude 34" but am also looking at a GD Reflection like yours.
 

steveblonde

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Jan 8, 2015
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3,378
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calgary alberta
There are HUGE differences between a 2500 and 3500 with respect to payload and if your planning on getting a 5er get a 3500 and pay the extra $1000 cost for the 3500 and recieve about 1400lbs extra payload over a 2500
A dually will give you about another 1400lbs over a SRW 3500
 

Joezeppy

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Mar 16, 2009
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2,354
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Upstate NY - Kuyahoora Valley
What Steve said! A friend of mine is going through this right now. He has a 2015 Chevy 2500 Duramax. Tow rating 17,000 but payload 2,200. He's looking at 5th wheels in the 15,000 lb range but the numbers won't work for him, unfortunately.
 

rbrdriver

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Joined
May 23, 2016
Posts
261
Location
Visalia, CA
I also agree with at least a 3500 srw minimum if you are considering fifth wheel hauling, and maybe even a drw. You would be disappointed in the payload of most 2500s.
 

brclark82

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Joined
Aug 9, 2017
Posts
56
Location
Central IL
Payload on the ‘20+ GM 2500/3500 had increased significantly from previous generations and there isn’t the crazy difference between the 2500/3500 that there used to be when the artificially kept the 2500 GVWR at 10,000 for registration purposes even though they were significantly more capable.

Let’s assume you are wanting a High Country/Denali as they will have the lowest payload you are looking at around 3100lbs for the 2500 and 3600lbs for the 3500.
 
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