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Old 02-01-2015, 01:56 PM   #61
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Thanks Rich. But what is a "PP for Hensley" stinger?
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Old 02-01-2015, 02:44 PM   #62
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Every once in awhile, Sean, at Propride, makes up a small batch of adjustable stingers to Hensley fitment. The end that goes into the hitch-box is dimensionally different between Propride and Hensley.

See it here:

http://www.propridehitch.com/adjusta...y-arrow-hitch/
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Old 02-02-2015, 12:41 PM   #63
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Originally Posted by time2play View Post
In December, we decided to upgrade our tow vehicle from a 2013 Ford F150 to a 2015 GMC Sierra Denali 2500HD Diesel.

We thought long and hard about upgrading to diesel, but decided to do it for peace of mind. We have a 30' Classic and felt it needed a bigger truck.

Our trailer is winterized, so we haven't taken it out yet. But we're looking forward to our first trip with our new tow vehicle.

Here's a pic:
You are a bad person. I've been obsessing about the GMC Denali ever since I saw yours. I bought the first Ford product I've ever owned about 18 month ago (an F-150 Ecoboost) and it's "fine" ... but not in the same league with my old Silverado.... and not with the luxury features of this GMC.

I want it. and here's what's really funny, my name. Paula Ford
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Old 02-02-2015, 03:59 PM   #64
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Quote:
Originally Posted by time2play View Post
Roadtech, there's a lot of good information on this thread about 18" wheels. Here's the link:

http://www.airforums.com/forums/f463...ls-129108.html



We just decided the 18" wheels were fine, and it saved us a little money off the final price. Down the road, it will be cheaper to replace them too!



Good Luck!



Yolanda

Does the truck have a rear vent for heat / AC?


Sent from my iPad using Airstream Forums
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Old 02-03-2015, 07:17 AM   #65
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My Silverado Duramax Crew Cab does not have rear heat/ac vents. But then, I don't plan to ride back there!
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Old 02-20-2015, 12:41 AM   #66
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We found the GM / Chevrolet to be considerably quieter and smoother at towing speeds (60-65mph) than either the Ford or Ram...any of the diesels have more power than you are likely to ever need!
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Old 02-20-2015, 10:37 AM   #67
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Do GM diesels have the similar emissions as the Ford 6.7L? Any partial engine slowdowns etc due to low DEF or exhaust gas sensors?

This is not too far from me. It's been advertised for over a month now.
http://www.bentonvillechevrolet.com/...-AR/2423372373

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Old 03-01-2015, 03:50 PM   #68
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Nice rig

So, what year did the exhaust brake come out on the 2500? Also, when did the quite diesel engine come out. I would like to find a clean used version of the new one. How far back can I go?

I use to have the 06 F250, had all the problems, etc. I never bought anything that expensive and for it to leave me in an intersection twice was just unacceptable. Never again.
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Old 04-24-2015, 05:24 PM   #69
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Does the Airstream umbilical plug fit the Denali socket?

I finally put my new 2500HD in front of my Airstream to check the hookup. I found it impossible to fully insert the trailer plug into the truck outlet. The prongs inside do make contact, so I was able to check out the electric over hydraulic brake hookup (seems to work fine as far as I can tell without actually towing it).

However, the prongs don't seem to actually slide together (at least not with normal insertion force), so any jiggling of the umbilical cord causes loss of contact. It worked fine with my old F350.

A late model "standard" plug slides into my Denali just fine - see comparison pictures attached. I've used my truck with a utility trailer without problems.

Maybe I need to push the airstream plug in harder (risk bending the pins), or else cut off the moulded airstream plug and put on a replacement. Before I do that, I want to check if anyone else has run into this problem.

Thanks!
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Old 04-24-2015, 10:07 PM   #70
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Gwmc, mine is harder to push in than my 05 was. It seems to be getting easier after use. I have always been able to fully insert the plug and make sure it was locked in. Pulling it out I thought was going to pull the receptacle from the truck but it stays in place. Tighter fitting for sure on the 15 Silverado.
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Old 04-25-2015, 12:27 AM   #71
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Thanks Tater, maybe I'll try it with some dielectric grease.

George
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Old 04-25-2015, 08:33 AM   #72
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Georgia should work fine. I've got a 2015 2500 Duramax with my 2015 Classic and it plugs right in.
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Old 04-25-2015, 10:55 PM   #73
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Hensley stinger

Quote:
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, 07:56 PM   #74
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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, 09:08 PM   #75
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Sweet truck, lots of fun with that thing.
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Old 06-15-2016, 12:17 PM   #76
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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.
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Old 06-15-2016, 01:29 PM   #77
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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.
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Old 06-15-2016, 04:53 PM   #78
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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, 10:01 PM   #79
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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. https://www.ford.com/trucks/superduty/2017/
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Old 08-04-2017, 10:01 PM   #80
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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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