Towing Maximum

[BruceH]

I recently purchased a 2017 2500 diesel GMC Sierra Denali. I also own a 40 ft 5th wheel with a dry weight of 12,700. The truck has a recommeded maximum towing of 13,500. Once we load up our truck and 5th wheel, we will be over the towing maximum. What type of damages could I be facing to the truck? 

[redwngr]

How's your pin weight %, and how does that weight compare to payload remaining after loading the truck?

iirc, usually for 5th wheel it's recommended that pin weight be 15 to 25% of total.

15% of 14,000 = 2100

25% of 14,000 = 3500

 

4x4 Dmax 2500 Denali payload - 2513 lb (passengers and cargo reduce this amount)

4x4 Dmax 3500 Denali 6.5' payload - 3927 lb; 17,200 towing

The 4x4 version will be  4930 pay and 22,700 towing;

 

Probably you'll also be asked how far, how fast and how often -- and what type of terrain.

[gearheadesw]

Nice trailer..... we love pictures.......

[buzzyng]

I have an older 2500 that has a max tow of 14,9.  funny how newer ones have less.  Anyway, my 40' toyhauler says 12,3 dry and I've had it to 15,9 fully loaded with fuel tank, water, etc.  I was over the max tow, right on max of truck payload, and not over GCWR.  I would not have felt comfortable if I didn't have an exhaust brake for hills but otherwise it pulled just fine.  When I've had to go across mountain pass then I would drain the fuel/water to get closer to max.  If I was pulling often then I might reconsider but we're fair weather summer campers so the amount of time has been minimal.

[Icutmetl]

On 4/23/2019 at 8:30 PM, redwngr said:

How's your pin weight %, and how does that weight compare to payload remaining after loading the truck?

iirc, usually for 5th wheel it's recommended that pin weight be 15 to 25% of total.

15% of 14,000 = 2100

25% of 14,000 = 3500

 

4x4 Dmax 2500 Denali payload - 2513 lb (passengers and cargo reduce this amount)

4x4 Dmax 3500 Denali 6.5' payload - 3927 lb; 17,200 towing

The 4x4 version will be  4930 pay and 22,700 towing;

 

Probably you'll also be asked how far, how fast and how often -- and what type of terrain.

Did your numbers for the DMax Denali 2500 come off of a door tag? What cab/bed configuration? My 2018 2500 AllTerrain HD crew cab, regular bed diesel has a payload of only 1,984lb. I can’t imagine a Denali being any higher; the 2017 I looked at sure wasn’t.

[gearheadesw]

What, wait, your diesel can only put just under 2,000 lbs in the bed? Wow, I’m good for 3,000 in my DC gasser. 

[redwngr]

6 hours ago, Icutmetl said:

Did your numbers for the DMax Denali 2500 come off of a door tag? What cab/bed configuration? My 2018 2500 AllTerrain HD crew cab, regular bed diesel has a payload of only 1,984 lb. I can’t imagine a Denali being any higher; the 2017 I looked at sure wasn’t.

Those are from the charts in the 'fleet order guide' numbers.

Options will reduce /change the numbers, but they are from the Denali specific chart. (since that is what OP was asking about and it also makes 15/25/35 comparisons e easier) 

 

Mine is 10,000 GVWR with 2138 lb on door sticker. 

It has LT265/70R18ES tires (optional on 2500 Denali, with has standard 20" wheel/tire