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Old 04-24-2015, 11:27 PM   #71
2007 25' Classic
Calgary , Alberta
Join Date: Nov 2010
Posts: 44
Thanks Tater, maybe I'll try it with some dielectric grease.


2007 Classic 25'/ 2013 Cayenne GTS/ 2015 GMC 2500HD Denali
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Old 04-25-2015, 07:33 AM   #72
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2016 30' Classic
Erie , Colorado
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Georgia should work fine. I've got a 2015 2500 Duramax with my 2015 Classic and it plugs right in.

2015 Classic
2015 GMC Sierra 2500HD Duramax
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Old 04-25-2015, 09:55 PM   #73
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2013 30' Flying Cloud
Cincinnati , Ohio
Join Date: Sep 2012
Posts: 191
Hensley stinger

Originally Posted by Jack46 View Post
Thanks Rich. It looks like the 2" will about do it.
I switched from towing with an SUV to a GMC 2500 duramax. I used a 6" drop stinger with the Hensley with the SUV, and figured I would need a lower one with the Dmax (hitch measured 1.5 inches higher). Wrong. For a while I towed with the 6" drop, but it was just too low. I went with a 2" drop. That works much better with my set up. I would have ordered a 3", but even numbers only are available.

I also switched out the 1400 pound swaybars for 1,000 pound swaybars. I thought I could just tighten the old bars less and achieve the same result. wrong again. The lighter bars are easier to adjust to the right amount of WD.
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Old 06-14-2016, 06:56 PM   #74
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2016 28' Pendleton
Cybertron , Illinois
Join Date: Mar 2016
Posts: 57
Anything new to share about your Denali? How has the new found payload worked out? Looking at this combo and just wanted to check how everyone's enjoying theirs.

I'll be towing a Pendleton and currently have a pro pride with 1400 bars. Curious to see if the OP made any changes to their WD setup when going to the 2500.
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Old 06-14-2016, 08:08 PM   #75
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2016 27' Flying Cloud
Saint Robert , Missouri
Join Date: May 2016
Posts: 46
Sweet truck, lots of fun with that thing.
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Old 06-15-2016, 11:17 AM   #76
2007 25' Classic
Calgary , Alberta
Join Date: Nov 2010
Posts: 44
Denali 2500HD Experiences

Ours has been fine. Smooth, powerful, comfortable. I tow with an Equalizer hitch, have used both Airsafe Hitch and regular. Found the regular hitch perfect, it puts the pivot point closer to the rear axle, yet still allows for opening tailgate with trailer attached.
I'm very happy with the Duramax Denali. I've had two warranty repair issues: a small oil leak on the lower oil pan and a bad GPS antenna.
2007 Classic 25'/ 2013 Cayenne GTS/ 2015 GMC 2500HD Denali
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Old 06-15-2016, 12:29 PM   #77
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2013 30' Classic
Kent , Washington
Join Date: Mar 2013
Posts: 344
Towing with the Denali 2500 has been totally different than towing with the F150. It's a more stable towing experience due to the weight of the truck and the hitch. As George said, it's been "Smooth, powerful and comfortable".

The only adjustment we made was to the stem of the hitch to match the trailer height so it was level, which was quick and easy to do.

A huge advantage is the exhaust brake when going down a steep grade.

We did have one warranty issue with the GPS navigation system; it didn't work at first. It took a couple of months to get it fixed. Once it was fixed, GMC Customer Service came through and gave us a set of floor mats and extended our subscription to OnStar by one year. When added to the normal 6-month free service, we got a total of 18 months of free onStar service.
Yolanda (and Phil)
2013 30' Classic Limited
2015 GMC Sierra Denali 2500HD
ProPride 3P Trailer Sway Control Hitch
WBCCI #7878
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Old 06-15-2016, 03:53 PM   #78
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2016 28' Pendleton
Cybertron , Illinois
Join Date: Mar 2016
Posts: 57
Thanks for the update guys. I looked at a SLT which had a payload of 2442 and a Denali which was about 2200.

I'm on the fence with considering a F-250 but it's a gamble if it will have more payload than the GMC. Did any of you consider a 3500 instead of the 2500?
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Old 06-15-2016, 09:01 PM   #79
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2005 28' Safari S/O
Paradise , California
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I love my 2015 Denali 2500. Best truck yet, but I would take a serious look at the 2017 Ford Superduty trucks if I were looking now. They will have an aluminum body and beefed up frame, so more weight capacity.
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Old 08-04-2017, 09:01 PM   #80
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2017 28' International
Cypress , Texas
Join Date: May 2017
Posts: 22
New '17 Duramax

Just got back from a test run (w/ Airstream Int'l Serenity 28) with our GMC 2500HD Duramax. Traded in our GMC Sierra 1500 (only a year old) to get the new one...took a bath on the deal, but justified it by the "need" rather than the "want". The 2016 gasser was great and I loved every minute of it, but I could see it was going to struggle up the hills with Airstream. New one really relieves quite a bit of stress, and the trailer is hardly noticeable. Headed to Yellowstone from Houston in late August, so looking forward to trying it out on the hills in between. Really loved the Ford SuperDuty F250 Powerstroke I test drove for a full day, but wouldn't fit into my garage (it's around 11" longer). Interior / instruments are frankly better on the Ford, but at least I'm not having to learn whole new set of instrument locations on the GMC. Hoping it'll be the last bath I take on new cars/trucks for awhile!
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Old 08-04-2017, 09:26 PM   #81
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2017 30' International
Broomfield , Colorado
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Our new 2015 GMC Sierra Denali Duramax 2500HD

We just returned from a week out and about in the Colorado Rockies (we live on the front range near Denver)

Our 2017 2500 duramax Denali did a great job (our first big trip fully loaded towing with it). On our return leg my wife drove us eastbound up and over the continental divide through the Eisenhower tunnel on i70 in the pouring rain and in heavy traffic at speed - no problemo - stress free ride.

The 2500 provides a confident platform for towing for sure (we moved up from a 1/2 ton SUV and tow a 30' international serenity). Exhaust brake down the 8+ mile descent to Dillon at 6% grade worked well - I think she only touched the brakes twice due to traffic.

We are liking our upgrade in the TV department.... hood scoop on the 2017 is a plus
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Old 08-04-2017, 11:02 PM   #82
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2017 27' International
Fall City , Washington
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Posts: 271
Nice rig! I heard so many friends extolling the virtues of a 3/4 ton diesel that we just bought one (RAM 2500 cummins) as our first TV and we've never looked back. I've got loaded now with 2 motorcycles, ramps, extra gear and generator, and towing our 27FB. Easily tackles tough passes, gets 13-15mpg, and handles the AS effortlessly.

You get a ton of opinions here on 1/2 tons vs 3/4 tons, gasser vs diesel. My personal belief is most of those opinions are held by people who have no experience with 3/4 ton diesels because once you have, so hard to accept anything less.
2014 28' Flying Cloud
2013 Ram 2500 Laramie Crew Cab CTD 4x4
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Old 08-05-2017, 10:36 AM   #83
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2017 28' International
Cypress , Texas
Join Date: May 2017
Posts: 22
Lara're probably right. I've already been accused of "overkill" on the 3/4 ton diesel. But, if "overkill" means more control on downhill braking and ease of getting up the hill in the first place, then I'm happy with "overkill"
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Old 08-05-2017, 02:22 PM   #84
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2005 31' Classic
Garner, , North Carolina
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what is the main differences between the SLT and Denali in the GMC model and the LTZ in the chev version in the 2500 HD diesel trucks.

currently in a 2003 f-250 SD iwth 7,3L and know it will be needing an upgrade in 5-7 yrs after we go full time in 3 yrs.

like the fords just not liking the issues with the 6.7L engines in the earlier models.

any issues with the durmax engines 2012 to 2015 models. ?

current miles on truck at 174K

Carl, Raleigh NC
2-24-16 got a 2005 Classic 31D check it out for good rental deals
2003 F-250 SD, CC, 7.3L PowerStroke
WBCCI#1691, Piedmont Airstream Club, Unit #161, Region #3
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