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Thread: 08 GMC 3500 Dually

  1. Print this Post   #1
    Member
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    08 GMC 3500 Dually

    Just purchased a new GMC 3500 dually D/A. I will be towing a BH 3670. I plan on installing B&W 18K companion hitch. I have read of a few cases of not enough clearance on some of the new GM trucks. It appears most have solved the problem with adjustments to the hitch assembly. Any feedback would be appreciated.

  2. Print this Post   #2

    We have a Chevy 3500HD towing a Cyclone. The only clearance issue I have had is with the tonneau cover rails. They are only an inch above the bed rails but just enough to catch if I have the trailer at a weird height angle and 85 degree turn has come into contact with the tonneau rails. I switch to an 5th Airborne which is slightly short pin box then stock, solved the problem and significantly improved the ride.


    Jason, Monica and Hunter
    Dogs Sierra and Boulder

    2011 HD Chevrolet Crew Cab Dually w/Duramax
    2008 Cyclone 3210
    1999 Harley Davidson Road King
    1997 Honda Shadow
    2005 Kawasaki KLR 650
    2009 Yamaha Raptor 700
    2007 Yamaha 125
    2009 Yamaha 110
    Heartland Club Member # 1103

  3. Print this Post   #3

    I have the Reese Signature Series hitch set at middle the middle height. Hopes this helps.


    Jason, Monica and Hunter
    Dogs Sierra and Boulder

    2011 HD Chevrolet Crew Cab Dually w/Duramax
    2008 Cyclone 3210
    1999 Harley Davidson Road King
    1997 Honda Shadow
    2005 Kawasaki KLR 650
    2009 Yamaha Raptor 700
    2007 Yamaha 125
    2009 Yamaha 110
    Heartland Club Member # 1103

  4. Print this Post   #4
    Committed Member truknutt's Avatar
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    Traveler,

    That's great to hear about your 5th Airborne switch. I have been debating pulling the trigger on that purchase.

    Now that I know another 3210 owner noticed an improvement, it'll be easier to pry Momma's wallet open!!!

    Hope you had a great trip to NM & back.
    TrukNutt & Co.
    (Dave, Nona, Sienna, Maverick & Salem)
    U.S. Army, Retired (x2)
    2009 F450 6.4L PSD C/C Lariat Dually 4x4 ("The Beast")w/ReTrax Pro Tonneau, Bedsaver, Ride-Rites & Titan 67 gal. Tank

    2004 EZ-GO Gas Golf Cart ("The Li'l Beast")
    1997 Harley FLHTCU (Retirement Present)
    2009 NAHOC Rally / PAHOC Rally
    2010 NAHOC Rally / NYHOC Rally / Hershey RV Show
    2011 PAHOC Rally / NAHOC Rally / DE 5-State "Sweat Lodge" Rally / Hershey RV Show / NYHOC Rally
    2012 PAHOC Rally / NYHOC Rally / Hershey RV Show
    2013 NAHOC Rally / PAHOC Rally / Hershey RV Show
    2014 NAHOC Rally (well almost, made it 12 miles)
    2015 NAHOC Rally
    2016 VAHOC Rally
    2017 PAHOC Rally / NAHOC Rally
    2018 HOC NE Region Rally
    2019 NAHOC Rally / NYHOC Rally / PAHOC Rally


  5. Print this Post   #5

    I would definitely recommend. We could really tell the difference on I40 through Oklahoma which is a concrete and bumpy highway. We have put 37,000 miles on the trailer in the past year and a half, of which 15,000 with the 5th airborne. It is also easy to install.

    It was an excellent trip, however I desperately wanting to be on the go fulltime.


    Jason, Monica and Hunter
    Dogs Sierra and Boulder

    2011 HD Chevrolet Crew Cab Dually w/Duramax
    2008 Cyclone 3210
    1999 Harley Davidson Road King
    1997 Honda Shadow
    2005 Kawasaki KLR 650
    2009 Yamaha Raptor 700
    2007 Yamaha 125
    2009 Yamaha 110
    Heartland Club Member # 1103

  6. Print this Post   #6
    Senior Member flamingknitter's Avatar
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    Mar 2008
    Location
    USA - CA
    Posts
    150

    I have an Augusta and a Chevy 2008 dually with a B&W companion hitch. My hitch is at the recommended height and I have to be careful of weird angles. When I was taking my driving lesson, I goobered up the driver's side rail protection cap with the electrical box that was mounted below the level of the hitch. I had the dealer move that up so that the hitch would be the lowest part (gave me another three inches of clearance or so). I am happy with the set up. It is easy to hook up and unhook. I use a step ladder so that I can reach the handle to open the jaws. Can't speak for the other hitches. This is my one and only experience!!

    Marybeth
    2009 Landmark Augusta
    2008 Chevy 3500 DRW
    HOC #1039

  7. Print this Post   #7
    Founders of SoCal Chapter Bob&Patty's Avatar
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    Marybeth and others with a clearance problem. The bed rail sides on the new GM trucks are about an 1"&1/2 higher that the 07 classic and older trucks. This issue was discussed awhile back here on the forum. I work at a Chevy dealer and physically measured them to make sure. I wonder how many RV dealers are aware of this or dont care. As to the issue of the electrical box clearance, we should get Jim B. to pass it on to HL so they can solve it in production at the plant. My 2cts worth. Bob
    Bob (Old cranky), Great wife Patty, 5 great kids, 11 grandkids

    Callie the wonder dog (we are still wondering) and 1 crazy cat "Baby" (RIP at 18 years old). Callie misses her Kitty.

    2013 GMC 3500 HD DRW C/C L/B with all the goodies (the grey ghost). AirLift 5000 with auto leveling. 34 gal custom auxillary in bed tank. Spray in bed liner and rubber mat. 16K Husky hitch.

    07 2955RL BIG HORN #5103

    58 Belair 2dr hardtop, low and slow custom.

    HEARTLAND CLUB MEMBER # 1056



  8. Print this Post   #8

    Correct it is higher. I do not have experience with the B&W companion hitch, but with the Reese Signature Series with our Cyclone trailer has never had electric box clearance or the pin box clearance issues with the factory bed rails. I did raise my hitch to next level from our previous Chevrolet truck and still have the ability to raise it one more level. I also raised the trailer to its highest setting to keep it level when connected to the truck. The only issue we have had is with the bed cover rails with sit an inch higher and inch closer to the hitch. With the installation of the 5th Airborne it further increased clearance due to it’s slightly shorter dimension compared to the stock pin box. We have pulled nearly 40000 miles with tight turns and weird angles on and off the beaten path, toy hauler lots of dirt activitiesJ, without any issue to the factory bedrails. I cannot speak to other Heartland trailer configurations. Hope this helps.


    Jason, Monica and Hunter
    Dogs Sierra and Boulder

    2011 HD Chevrolet Crew Cab Dually w/Duramax
    2008 Cyclone 3210
    1999 Harley Davidson Road King
    1997 Honda Shadow
    2005 Kawasaki KLR 650
    2009 Yamaha Raptor 700
    2007 Yamaha 125
    2009 Yamaha 110
    Heartland Club Member # 1103

  9. Print this Post   #9
    Director of Owners Interests, Heartland RVs jbeletti's Avatar
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    Oct 2004
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    USA - TX
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    19,237

    Quote Originally Posted by Bob&Patty View Post
    ...As to the issue of the electrical box clearance, we should get Jim B. to pass it on to HL so they can solve it in production at the plant... Bob
    Done. I passed this along to Production and Engineering this morning. I am not in a position to promise any change but you have been heard and it will be discussed at the plant.

    Thanks for flagging this up.

    Jim

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