Offroad Trailblazers and Envoys

Roof top tent on factory rails and crossbar

Discussion on how to enjoy the outdoors.

by somedude » Fri May 17, 2019 3:13 pm

Has anyone tried putting a roof top tent on the factory rails and cross bars?

From what I gather the dynamic weight rating is 220lbs based on the 2002 gmc envoys owners manual. https://my.gmc.com/content/dam/gmownerc ... owners.pdf

Excerpt from section (2-62):

Loading cargo that weighs more than 220 lbs.
(100 kg) on the luggage carrier may damage
your vehicle.
When you carry cargo on the luggage carrier of a
proper size and weight, put it on the slats, and
distribute the weight evenly. Then slide the
crossrail up against the rear of the load, to help
keep it from moving. You can then tie it down.
Cargo containers must be loaded on the
crossrails only.
somedude
Cruiser
 
Posts: 22
Joined: Fri Feb 24, 2017 3:17 pm
Name: Mar
Vehicle Year: 2002
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80

by Flyingfischer5 » Sat May 18, 2019 2:18 pm

I don't use the factory roof rack but I have had no problem with my tent up on the roof. There are a couple other members that I believe use the the factory rack for their RTT with no problem.
User avatar
Flyingfischer5
Off-Roader
 
Posts: 153
Joined: Sun Feb 21, 2010 9:43 pm
Location: Spokane, WA
Name: Craig
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD

by somedude » Sat May 18, 2019 4:47 pm

Thanks for the info Craig. Do you know if the factory cross bars are sufficient to mount the RTT to as well?

I have seen noticed several people use the factory rack, but use Surco crossbars bolted directly to the rack. I believe that is the route I want to take eventually, but was thinking I could get away with the RTT mounted to the factory cross bars which are connected to the factory rack.
somedude
Cruiser
 
Posts: 22
Joined: Fri Feb 24, 2017 3:17 pm
Name: Mar
Vehicle Year: 2002
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80

by Flyingfischer5 » Sat May 18, 2019 8:14 pm

I wouldn't know if the factory ones would work. I took my factory rack off about 10 years ago and can't remember how sturdy they were. If it's rated for 220lbs then they should be good as most of the weight limits are rated for while you drive on most vehicles. Most tents are 75lb to about 150lbs for the big ones.
User avatar
Flyingfischer5
Off-Roader
 
Posts: 153
Joined: Sun Feb 21, 2010 9:43 pm
Location: Spokane, WA
Name: Craig
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD

by somedude » Sat May 18, 2019 11:10 pm

Okay, I appreciate you getting back to me. I will try it out, and see how it goes while I wait for my surco cross bars. With the surco cross bars, I have to figure out the best way to mount it to the rack. Lots of good info at the link below. I just started modding my gmc, pretty late to the game but finally have a lift.

viewtopic.php?f=9&t=858
somedude
Cruiser
 
Posts: 22
Joined: Fri Feb 24, 2017 3:17 pm
Name: Mar
Vehicle Year: 2002
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80

by The Roadie » Sun May 19, 2019 12:38 pm

I used Surco crossbars on factory rails for a while, but before I had a tent, I had a very overloaded roof basket. Started bending the factory rails where there's an opening. Ripped them all off when I added a tent and now use Unistrut for rails and crossbars.
User avatar
The Roadie
Founder
 
Posts: 5011
Joined: Mon Sep 07, 2009 11:29 pm
Location: CA, Vista, San Diego County
Name: Bill Carton
Vehicle Year: 2004
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80
Rank: Expedition Guide

by Grimor » Sun Jun 02, 2019 11:11 pm

I used 4 factory crossbars under my RTT
User avatar
Grimor
Trail-Blazer
 
Posts: 296
Joined: Thu Mar 28, 2013 12:28 pm
Location: Chicago-ish
Name: Dennis
Vehicle Year: 2006
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD
Rank: Driveway Rated

by somedude » Tue Jun 04, 2019 12:24 am

I decided to try out the 4 factory cross bars. Used it once so far, so far so good.

4 cross bars
RoofRack.jpg


Roof top tent
IMG_20190601_104646.jpg
somedude
Cruiser
 
Posts: 22
Joined: Fri Feb 24, 2017 3:17 pm
Name: Mar
Vehicle Year: 2002
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80

by Diacom » Tue Jun 04, 2019 10:33 am

Looks good.

Let us know if you find any issues such as it working loose or excessive crossbar deflection.
Diacom
Addict
 
Posts: 834
Joined: Fri Jul 23, 2010 9:08 pm
Location: Mt, Great Falls
Name: Noel
Vehicle Year: 2003
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker

by DirtyBacon04 » Thu Jun 06, 2019 8:09 am

14 gauge super strut as mine, simple, variety of accessories and available at Lowe's
Trans-Continental Trailblazer - 5th Award
***The more you know, the less you need.***
USMC '07-'12
Dirty Bacon's Build
User avatar
DirtyBacon04
Moderator
 
Posts: 3028
Joined: Fri Aug 05, 2011 4:59 am
Location: FL, Central
Name: Michael
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Rated

by somedude » Thu Jun 06, 2019 12:55 pm

DirtyBacon04 wrote:14 gauge super strut as mine, simple, variety of accessories and available at Lowe's



Hey DirtyBacon04, for clarification, are you using the super strut just as the cross bars, on factory rails? If so, what kind of mounting bolt system are you using?
somedude
Cruiser
 
Posts: 22
Joined: Fri Feb 24, 2017 3:17 pm
Name: Mar
Vehicle Year: 2002
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80

by DirtyBacon04 » Thu Jun 06, 2019 1:17 pm

Yes. Super struts as cross members on factory rails. The superstrut fittings fit inside the factory rails, so mounting is real easy.

Image
Trans-Continental Trailblazer - 5th Award
***The more you know, the less you need.***
USMC '07-'12
Dirty Bacon's Build
User avatar
DirtyBacon04
Moderator
 
Posts: 3028
Joined: Fri Aug 05, 2011 4:59 am
Location: FL, Central
Name: Michael
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Rated

by somedude » Thu Jun 06, 2019 1:38 pm

That is great information, thank you DirtyBacon04, I was just looking at those exact mounting hardware.
somedude
Cruiser
 
Posts: 22
Joined: Fri Feb 24, 2017 3:17 pm
Name: Mar
Vehicle Year: 2002
Vehicle: GMC Envoy
DriveTrain: 4WD w/ G80

by Smartin11 » Wed Aug 14, 2019 3:12 am

Seems like itd be uncomfortable!
Smartin11
Cruiser
 
Posts: 16
Joined: Mon May 30, 2016 4:32 pm
Location: Orlando, FL
Name: Sean
Vehicle Year: 2003
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD


Return to Camping / Survival

cron