Offroad Trailblazers and Envoys

Trailblazer Rear Bumper Design/Build

Any special projects involving a decent amount of fab work (bumpers, sliders, roof racks, etc)

by glfredrick » Tue Jul 27, 2010 10:43 am

A hit to the air tank would mostly just split a seam and let the air out. No real explosion. Happens all the time on big rigs when they get in accidents. They have air tanks haning all over the place.
http://www.UCORA.org == The United Christian Off-Road Alliance, a family friendly place
2003 Trailblazer = got groceries?
1995 Dodge RAM 2500 w/Cummins = got tow rig?
1986-90 Ford Ranger truggy = got rock?
User avatar
glfredrick
Contributing Author
 
Posts: 130
Joined: Mon Jul 26, 2010 3:28 pm
Location: Eagle, WI
Name: Guy
Vehicle Year: 2003
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD

by Gordinho80 » Tue Jul 27, 2010 10:49 am

The bumper is looking amazing! Can't wait to see more progress!
Mario - Build Thread
User avatar
Gordinho80
Lifer
 
Posts: 2787
Joined: Tue Sep 08, 2009 9:27 am
Location: NJ, Jackson
Name: Mario Almeida
Vehicle Year: Other
Vehicle: Other Vehicle
DriveTrain: 4WD

by Hpimichael02 » Fri Aug 06, 2010 8:52 am

Make sure Eric saves the templates cause I want one too
Hpimichael02
Trail-Blazer
 
Posts: 275
Joined: Thu Jul 29, 2010 5:20 pm
Name: Mike mcd
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD
Rank: Trail Ready

by aaronrules » Fri Aug 06, 2010 12:56 pm

Have you had any more progress? I'm anxious to have something else to drool over with your ride dude!
Lift, shocks, wheels and tires installed...need some armor now.
aaronrules
Off-Roader
 
Posts: 155
Joined: Thu Apr 01, 2010 2:21 am
Name: Aaron
Vehicle Year: 2004
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD

by Trail X » Fri Aug 06, 2010 1:41 pm

aaronrules wrote:Have you had any more progress? I'm anxious to have something else to drool over with your ride dude!


Things have been going a million miles an hour... but not the bumper. Minor progress, but no pictures. I'll get some pictures when Eric and I do a test-fit.
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by teebes » Wed Sep 01, 2010 7:22 pm

We need progress pics :drive:

:need pics:
User avatar
teebes
Founder
 
Posts: 1052
Joined: Thu Sep 03, 2009 1:05 am
Location: CA, San Diego
Name: Teebes
Vehicle Year: 2002
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Rated

by Trail X » Wed Sep 01, 2010 9:46 pm

Haha, I know I know!

Trying to get together with Eric sometime soon for a test fitment. Probably next week. Then it's on hold for another 2 weeks due to a business trip.
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by Trail X » Sat Sep 11, 2010 12:41 am

FINALLY some free time and movement... forgot the camera, so it's only cell phone pictures. :?

Cut the frame ends so as to fit the bumper in tighter:

0910101751.jpg
(28.4 KiB) Downloaded 414 times


Welded in the receiver (back side shown):

0910101753.jpg
(46.23 KiB) Downloaded 414 times


More various pictures from the day... spent a lot of time making some patterns, measurements, and sketches:
0910101834.jpg
(54.02 KiB) Downloaded 414 times

0910101834a.jpg
(48.88 KiB) Downloaded 414 times

0910102012.jpg
(29.04 KiB) Downloaded 414 times

0910102120.jpg
(31.16 KiB) Downloaded 414 times


Hopefully will have more updates in about 3 weeks. :woot:
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by HARDTRAILZ » Sat Sep 11, 2010 12:45 am

Got to love cutting the frame for stuff. My rear and front are cut.

I like it, looks alot like my old front bumper. Plenty strong and very functional.
I hate to advocate weird chemicals, alcohol, violence or insanity to anyone...but
they've always worked for me.
User avatar
HARDTRAILZ
Lifer
 
Posts: 6303
Joined: Sat Sep 12, 2009 1:49 am
Location: IN, Batesville
Name: Kyle
Vehicle Year: 2006
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Extreme Offroader

by SteveTB03 » Sat Sep 11, 2010 1:32 am

I love the design and the progress is going good, BUT how is this affecting your towing capabilities with the hitch no longer on your TB? Is the hitch that's built into the bumper has it now been downgraded to like a class 1 hitch instead of a class 3 hitch?
Go Big & Go Broke
User avatar
SteveTB03
Addict
 
Posts: 600
Joined: Fri Sep 11, 2009 6:11 pm
Location: Las Vegas, NV
Name: Steve Darras
Vehicle Year: Other
Vehicle: Other Vehicle
DriveTrain: 4WD
Rank: Trail Ready

by Zero » Sat Sep 11, 2010 6:31 am

I believe the weight JD's bumper would be limited by how its mounted to the frame, and not that material holding him back. if you think about it, there is about 3x as much steel. And it has to be strong enough for extractions.

But I too would wonder what the answer actually is? And better yet, How will he test it?
Zero
Veteran
 
Posts: 1048
Joined: Thu Sep 10, 2009 5:07 pm
Location: Los Angeles, CA / Toronto, ON
Name: Brendan
Vehicle Year: 2005
Vehicle: Chevrolet Trailblazer EXT
DriveTrain: 4WD w/ G80
Rank: Offroad Rated

by Trail X » Sat Sep 11, 2010 9:42 am

SteveTB03 wrote:I love the design and the progress is going good, BUT how is this affecting your towing capabilities with the hitch no longer on your TB? Is the hitch that's built into the bumper has it now been downgraded to like a class 1 hitch instead of a class 3 hitch?


This hitch is easily stronger than the stock one. I'd feel secure in trailering anything I would with the stock hitch.

We designed it to handle my 8,500 lb winch....
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by Trail X » Sat Sep 11, 2010 12:07 pm

HARDTRAILZ wrote:Got to love cutting the frame for stuff. My rear and front are cut.

I like it, looks alot like my old front bumper. Plenty strong and very functional.


Those rear frame ends were surprisingly hard ... not enough clearance so we had to use our bandsaw from the bottom... against gravity. Then cleaned it up with a grinder.

Yeah, it does look somewhat similar to your front bumper doesn't it. Sorta a universal shape. This thing is definitely strong as hell (and pretty heavy... already about 60 lbs I'd guess)...
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by SteveTB03 » Sat Sep 11, 2010 3:14 pm

Now what exactly did you guys do to make it capable of using a 8500LB winch? Is it mounted far back to the frame or is it just mounted on the tips of the frame kind of like how the stock bumpers are mounted?

Is what your saying just theory that it'll work no problem or did you guys test some things out?
Go Big & Go Broke
User avatar
SteveTB03
Addict
 
Posts: 600
Joined: Fri Sep 11, 2009 6:11 pm
Location: Las Vegas, NV
Name: Steve Darras
Vehicle Year: Other
Vehicle: Other Vehicle
DriveTrain: 4WD
Rank: Trail Ready

by Trail X » Sun Sep 12, 2010 10:30 am

The frame mounts are deeper and at least 3x thicker than stock. Added an extra bolt deep in the frame. The center section has internal reinforcements - also all thicker and wider than the stock bumper (when you look at the stock bumper, it's not really that beefy).

No actual tests, all mechanical theory and finite element analysis - what I do everyday at work.
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by HARDTRAILZ » Sun Sep 19, 2010 2:30 am

SteveTB03 wrote:Now what exactly did you guys do to make it capable of using a 8500LB winch? Is it mounted far back to the frame or is it just mounted on the tips of the frame kind of like how the stock bumpers are mounted?

Is what your saying just theory that it'll work no problem or did you guys test some things out?


They are planning for clear duct tape to take up any slack leftover. It will be fine. :finger:
I hate to advocate weird chemicals, alcohol, violence or insanity to anyone...but
they've always worked for me.
User avatar
HARDTRAILZ
Lifer
 
Posts: 6303
Joined: Sat Sep 12, 2009 1:49 am
Location: IN, Batesville
Name: Kyle
Vehicle Year: 2006
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Extreme Offroader

by Trail X » Fri Oct 01, 2010 2:20 pm

Wings finally tacked in place. :excited:

Next comes the tire carrier.
Attachments
0930102356.jpg
(49.17 KiB) Downloaded 303 times
1001100023.jpg
(44.85 KiB) Downloaded 303 times
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

by janesy86 » Fri Oct 01, 2010 3:03 pm

Nice progress! And that is definitely a sweet looking bumper!
Build Thread
Back to stock, had fun while it lasted...
janesy86
Veteran
 
Posts: 1291
Joined: Thu Sep 10, 2009 2:29 pm
Location: MA, Salem
Name: Nick Janes
Vehicle Year: 2007
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ G80
Rank: Offroad Rated

by HARDTRAILZ » Fri Oct 01, 2010 3:25 pm

Me likey.

Will it be done for Tecore?
I hate to advocate weird chemicals, alcohol, violence or insanity to anyone...but
they've always worked for me.
User avatar
HARDTRAILZ
Lifer
 
Posts: 6303
Joined: Sat Sep 12, 2009 1:49 am
Location: IN, Batesville
Name: Kyle
Vehicle Year: 2006
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Extreme Offroader

by Trail X » Fri Oct 01, 2010 3:51 pm

HARDTRAILZ wrote:Me likey.

Will it be done for Tecore?


Trying. Worked last night with Eric until 1am. I'm pushing him to get it done by then, but honestly it's going to be hard. A lot of work still to go.
8-) Build Thread | ExPo Build | YouTube Videos
Not all who wander are lost. -Tolkien
User avatar
Trail X
Founder
 
Posts: 9882
Joined: Mon Sep 07, 2009 10:22 pm
Location: VA, Roanoke
Name: James Downing
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Expedition Guide

PreviousNext

Return to Fab Work