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Rear Bumper Thread...

Next time start with the main tube long enough that when you want to make your bends, just cut an angle out of the back of it leaving the front intact. Then just pull it around be hand and weld it up. Much neater and stronger that way and everything stays aligned too.
 
^ yea I thought of that before, but the pieces that I had wouldn't allow it. My main piece was about 4 inches shy of being long enough, but I had plenty of 2" jiblets laying around. That's not what's giving me the trouble, its this stupid spindle/bearing.
 
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGatewithTire.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ005.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ004.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ003.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ002.jpg

Above I have attached some photos of the bumper I built. It was tied into the rear hitch and I did not use the stock mounting points. The bumper is mounted around the gas tank for saftey in a rear end collision. The quater panels have been reinforced and a lot of other fab work was done. I did not do a wright up but hope this gives you some ideas. I have since added quater panel protection to the bumper using 3/16" steal that raps under the XJ and supports the wieght of the XJ. Good luck with you bumper.
 
chris420 said:
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGatewithTire.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ005.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ004.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ003.jpg
http://i210.photobucket.com/albums/bb283/chris420_012/SwingOutGateXJ002.jpg

Above I have attached some photos of the bumper I built. It was tied into the rear hitch and I did not use the stock mounting points. The bumper is mounted around the gas tank for saftey in a rear end collision. The quater panels have been reinforced and a lot of other fab work was done. I did not do a wright up but hope this gives you some ideas. I have since added quater panel protection to the bumper using 3/16" steal that raps under the XJ and supports the wieght of the XJ. Good luck with you bumper.
Click to expand...

There now people don't have to click to see your pics
SwingOutGatewithTire.jpg

SwingOutGateXJ005.jpg

SwingOutGateXJ004.jpg

SwingOutGateXJ003.jpg

SwingOutGateXJ002.jpg
 
you also have the room to put a jerry can on there. Looks like it turned out great.
 
Hey, Chris420, Is your bumper supported by the hitch tie-ins only, or are there more mounting points? Do you have any pics of the mounting system?
 
I will take some pictures this weekend and post them. Sorry I can not post sooner my job has been very demanding latley.
 
I'm still working on the quarter panel finishing. The bumper stop under the tail lights, and extra quater panels plates will be made to hide the rivets/protection. This is so that fender trimming is still possible down the road.

Chris, where'd you get that spindle/carrier?
 
probably www.atozfabrication.com thats where I got mine and the also make the plate that the tire goes onto I have them both as well
 
See I'm just really not impressed by the "flagpole" design. I mean it seems like with a 100lb tire 2 feet away from the bumper, it would bend over and flex a ton. Warn's design seems to be the most solid. Huge post, captured on top by a bracket. That's what I'm trying to copy.
 
DanMan2k06 said:
See I'm just really not impressed by the "flagpole" design. I mean it seems like with a 100lb tire 2 feet away from the bumper, it would bend over and flex a ton. Warn's design seems to be the most solid. Huge post, captured on top by a bracket. That's what I'm trying to copy.
Click to expand...

when I get around to making another rear bumper I'm gonna put a tire swing on it and use the "flag pole" design, what I'll do is cut into the bumper making a slice that the pivot can sit partially in, then weld it up like crazy, put on a good bottom brace and then probably box the whole thing in. maybe over kill but it won't go anywhere.
sorry if that didn't make any sense, it's hard to explain without pics.
 
DanMan2k06 said:
See I'm just really not impressed by the "flagpole" design. I mean it seems like with a 100lb tire 2 feet away from the bumper, it would bend over and flex a ton. Warn's design seems to be the most solid. Huge post, captured on top by a bracket. That's what I'm trying to copy.
Click to expand...

It all comes down to how the tyre is supported on the move. My swingout arm slides onto a nylon pad on the bar when closed and is held solid with a slamshut latch. There is no movement in the carrier once it is shut so there is no flexing loads on the spindle. Even when it's open I can sit on the swingout with no movement of flexing of the spindle (mine is larger than most sold though at 43mm, or 1 6/10". I agree that if the arm is not well supported when the carrier is shut and the Jeep is bouncing around offroad then an unnecessary amount of load will be put on the spindle and it may not be the best option.

As an aside a mate has the warn bar and the whole thing moves around where as mine is rock solid :)

Cheers
Steve
 
DanMan2k06 said:
See I'm just really not impressed by the "flagpole" design. I mean it seems like with a 100lb tire 2 feet away from the bumper, it would bend over and flex a ton. Warn's design seems to be the most solid. Huge post, captured on top by a bracket. That's what I'm trying to copy.
Click to expand...
I think that your 1/8" box tubing is gonna be a serious flex problem also. That's a lot of weight on the end of that "lever". Hope you work it out though.
 
Well I FINALLY figured out what's going to happen with the spindle. I went out and bought an 8" long, grade 5 (they didn't have grade8) bolt. This will go through the bracket, through the carrier, through the bumper, and finally poke out the bottom with a nut holding it all together. This way if anything does go wrong in the future I can fix it easily. Heres some pics of the carrier and the bolt. I had to cut the carrier ends of (to save the bearings) and then splice it back together so that it would fit on the 8" bolt. It was origianlly about 5" long overall, now it measures about 2 5/8's. Shouldn't cause any problems.

IMG_1622.jpg


IMG_1623.jpg


IMG_1624.jpg
 
you were worried about a flag pole design? you just made the exact thing, and a lot weaker than if you had welded it.
 
^ Learn to read... There will be a bracket that captures the carrier. Almost like a sandwhich. And the bolt goes all the way through the bumper... whereas most are just butt-welded on top of the bumper. Hence "flagpole"... a flagpole just sits on top of the ground.
 
read steve f's bumper build, he didn't just butt weld it. IMO that would be the stupidest thing to do. he ran the spindle all the way through the bumper and welded both sides of it.
but oh well, if you do it and it works out then that's great and it's a lot easier way to do it for people that don't have the ability to fab as well.
good job on trying something new and make sure to let us know how it works.
 
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