JK Bumper Design/Build - JeepForum.com
LinkBack Thread Tools
post #1 of 3 Old 01-18-2014, 04:42 PM Thread Starter
Registered User
2013 JK Wrangler 
Join Date: Jan 2014
Location: miramichi
Posts: 1
JK Bumper Design/Build

I'm designing then fabbing a winch bumper for the front on my JK and am looking for some opinions on a few things.

The first is material, originally I was thinking of making it out of 1/4" mild steel(44w/a36) but it would be heavier than I wanted so I'm considering some higher strength materials. I was thinking 1/8" thick something in the range of 100ksi yield strength(Domex or weldox 100, or QT100). Has anyone worked with these materials. Any issues with welding them?

Second, consideration is the crash bar, to remove or not. My jeep is about 4 months old, full warrenty, but I never plan on taking it to the dealer unless there is a major issue. Would removing this void warrenty on bearings transmission engine ect? Mine is a Sport edition so I don't have the E-disco.

The third consideration is bolting it up. I like the look of bumpers with hidden fasteners but it would be a bit more complicated and would push the front end out a few more inches. The other option would be to make bolt on d-ring mounts for the end of the frame rail and sandwich the bumper in between. What looks better?

I started drawing this in Autodesk inventor, but since this my first post here, I can't post screen shots of what i have so far. Also I plan on mounting a winch down in between the frame rails.


hawkerxj is offline  
Sponsored Links
post #2 of 3 Old 01-18-2014, 09:59 PM
Registered User
Join Date: Nov 2012
Location: South Lake Tahoe
Posts: 860
What most everyone does is 1/4" for the winch plate and 3/16" for the 'skin', using plain ol A36 mild steel. A JK bumper wouldn't really be that big unless you're going crazy so I wouldn't be too concerned with weight.
AtTheHelm is offline  
post #3 of 3 Old 01-22-2014, 06:45 PM
Registered User
2006 LJ Wrangler 
Join Date: Jul 2012
Location: NE
Posts: 4,776
You could put 1x gusset underneath the winch plate to stiffen it.

Sent from my iPhone using JeepForum

Semper-Fi "81-84"
I.U.O.E. - 18
ravenworks is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome