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Open Roads Forum  >  Tow Vehicles

 > Towed with 2011 GMC Sierra 2500HD 6.0 gasser this weekend

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hawkeye-08

Northwest

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Posted: 08/22/11 01:19pm Link  |  Print  |  Notify Moderator

We finally got to get away for a weekend this year! It was our first tow with the new 2011 GMC and it towed great. Our TT is right around 7000lbs and we had towed with 2008 Yukon XL Denali previously. While the Yukon had plenty of power, the P series tires, flexing receiver and AWD caused some long term concerns, so we traded to the pickup. Since we are not towing real heavy, we ordered it with the 3.73 gears. The computer tends to be optimistic on mpg (it showed 9.6 when we got there and 9.2 for the whole trip). I expect the mileage to be around 8.5 mpg when we fill up. We had a bunch of ups and down, including more than 4 miles of 6% grade. Trans temp got to 183 at the highest.

We really liked it and are glad we made the trade. I have no concerns towing with 3.73 gears with the 6.0/6sp/4wd.

Turbo Diesel Dude

Ocala,Fl

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Posted: 08/22/11 01:34pm Link  |  Print  |  Notify Moderator

I'm a little heavier at 9K towing, but have the 4.10 gears. My overhead milage gauge is pretty close to actual. Pulling it to St.Augustine, Florida the 14th of Sept for our 55th Reunion. Mine is a Chevy Ext Cab Z71 4X4, 2011.


charles weidman

hawkeye-08

Northwest

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Posted: 08/22/11 01:45pm Link  |  Print  |  Notify Moderator

We have the Crew cab SLT with standard box (6.5'). I would have ordered the long box if it would have fit in the garage.. We test drove the Duramax version but really don't tow enough to justify the diesel.

APT

SE Michigan

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Posted: 08/22/11 01:55pm Link  |  Print  |  Notify Moderator

What kind of receiver flexing did you have with the previous TV? I'm probably getting a 2011 2500 Yukon and don't want the same problem you had!


A & A parents of DD 2005, DS1 2007, DS2 2009
2011 Suburban 2500 6.0L 3.73 pulling 2011 Heartland North Trail 28BRS
2017 Subaru Outback 3.6R

hawkeye-08

Northwest

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Posted: 08/22/11 03:30pm Link  |  Print  |  Notify Moderator

APT wrote:

What kind of receiver flexing did you have with the previous TV? I'm probably getting a 2011 2500 Yukon and don't want the same problem you had!


2008 Yukon XL Denali with the receiver in the bumper. When I tightened the WDH bars, the hitch flexed up. Some was play in the receiver, some was the structure flexing a bit. Ours was Denali so same as 1500, probably not as heavy duty on the hitch as the 2500 would be. you should have a look and see if the 1500 and 2500 Suburbans are different...

9one1!

New Hampshire

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Posted: 08/22/11 05:00pm Link  |  Print  |  Notify Moderator

We just came back from our 2nd trip with our '11 Chevy 2500HD 6.0 gasser. This trip was almost as hilly as the last but with no interstate. The truck did fine. My TT weighs in at 7320 loaded and ready to camp. I love the 6speed tranny and the grade control. It keeps definitely gives you a secure feeling coming down hills and will save your brakes in the long wrong. It does shift quite a bit but my tranny temps never got about 185 either for this trip and was normally between 165 and 175.

Like many people have said that tow with a gas motor, don't be afraid to rev, rev, rev this motor!


2016 RAM 2500 CC 4X4 6.4 Hemi w/3.73

2011 Jayco Jayflight 29QBH
7840 lbs ready to camp (8560 lbs full water load) (1200lbs tongue weight)
Reese Dual Cam


EX TV- 2011 Chevy 2500HD 6.0 4X4 3.73 extra cab
2011 Ford F250 SC 4X4 6.7 w/3.31


Hannibal

Tampa Bay Area

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Posted: 08/22/11 05:45pm Link  |  Print  |  Notify Moderator

Don't be too hypersensitive to the shifts either. My truck shifts constantly driving around town. Shifting on the hills isn't much to worry about. I haven't lost a transmission in over 30 years. I actually like to hear it downshift on the uphills and use gear reduction to multiply torque instead of forcing high torque through the taller gears.


'10 F250 XLT CC SB 5.4L 5spdTS 3.73 101k miles
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins; '05 Hemi
2017 Jayco 28RLS TT 32.5'. Equalizer 4 pt 10k.

hawkeye-08

Northwest

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Posted: 08/22/11 05:48pm Link  |  Print  |  Notify Moderator

just got back from refueling, 181 miles, 9.1mpg and strangely, the computer was close this time at 9.2 (it had been off in the past more than that). I'm not too worried about GCWR for the 3.73 gears, we don't plan on getting anything bigger for us (kids are grown) and like others have said, this truck is stable towing.

Just curious, has anyone actually experienced the computer sway control? My truck is supposed to be able to brake trailer and truck when sway is detected to correct, but I don't have any sway.

trout fisher

Saluda,SC

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Posted: 08/22/11 07:16pm Link  |  Print  |  Notify Moderator

I have a 2011 Chevy 2500HD crew cab z71 with 6.0 and 3.73 gears.I regurally tow my TT fully loaded at around 8500lbs without any trouble.Looked long and hard for a truck with 4.10 gears with no sucess.This truck has really impressed me with its towing ability.Gas mileage while towing has ranged from 6.3 in the mountains to 10.1 in the flatlands.

LumpyOatmeal

Top of Virginia

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Posted: 08/23/11 04:21am Link  |  Print  |  Notify Moderator

The feature I like the most is the built-in break control and yes it does apply the breaks if it detects sway.

On our way home two Sundays ago we were on the interstate during a thunder storm. The traffic was heavy with many large trucks. A strong cross wind caused my HTT to sway and the controller applied the breaks. I was startled at first but realized quickly what was happening.

Lumpy

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