The other bumper thread reminded me.  I've been meaning to post a thread trying to find some info on rear bumper mounting.  I've searched and didn't come up with any info on actually mounting one.  I think I'm gonna just make a basic box tube bumper.  Something like 2x6 or maybe double stacked 2x3 or 2x4.  I'm kinda leary of using the stock bumper mounts though.  Is there a way you guys tie them into the frame rails?  I noticed the frame rails have a little wavy cap piece of metal on them.  Is that something I should remove and make mounts from inside the frame rails, or what?  Any info is greatly appreciated.

Bryan

I think the Calmini rear bumper/tire carrier has brackets that bolt to the side of the frame to help support the extra weight. It'd be great if someone could post up a picture of what it looks like, I'm curious too

I've searched and didn't come up with any info on actually mounting one.  I think I'm gonna just make a basic box tube bumper.  Something like 2x6 or maybe double stacked 2x3 or 2x4.  I'm kinda leary of using the stock bumper mounts though.  Is there a way you guys tie them into the frame rails?  I noticed the frame rails have a little wavy cap piece of metal on them.  Is that something I should remove and make mounts from inside the frame rails, or what?  Any info is greatly appreciated.

Bryan

I made a bumper similar to what you are describing posted in the Build Diaries http://www.zukiworld.com/forum/index.php?topic=21864.0.
I used new hardened bolts from NAPA, and they go in at an slight angle.  I have dropped it on rocks and hasn't fallen off.  If you want more info., just ask.  I have been planning on adding a hitch, and will replace the lower cross tube with it.  That will be welded into the frame, and attach to the bumper.

Here is a picture of my rear bumper that I just built