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Old 10-30-2010, 01:30 PM   #1
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Poor build?

I just got a new bumper delivered in the mail and think it could have been made straighter. Tell me if I am over-reacting. Especially those of you that have installed an after market bumper.
It attaches fine at the endpoints but then to attach the inner bolts it is almost 1/4 inch bowed out. Here are some pics.


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Old 10-30-2010, 01:33 PM   #2
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I would think when you attach the inner bolts it should suck in right?

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Old 10-30-2010, 01:35 PM   #3
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Try starting all the bolts and turning them a little at a time so the bumper gets pulled down evenly from all four (or better yet....all 8). It looks like you'll still have a little bow in the center where the shackle mounts are, though. MIght need some washers under all the bolts at the frame.

That's my .02

What brand bumper?
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Old 10-30-2010, 01:38 PM   #4
Knows a couple things...

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Is that bumper also serving as the base for a spare tire carrier? If so, it doesn't look up to the job.
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Old 10-30-2010, 01:43 PM   #5
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I imagine it will come together a little but I don't want it to be constantly pulling the bolts apart. I will definitely need to put a bunch of washers in there.
It is a Jeeperman. It wasn't cheap either. I expected a bit more i guess. It seems like making the mount point on the same plane so it would be somewhat flush would have been the easy part.
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Old 10-30-2010, 01:50 PM   #6
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Jerry, I know your thoughts on a rear tire carrier bumper already... haha. I think it will be fine in that regard. It has an extra L-bracket for those outer bolts and there will be 4 more bolts for the inner bolts(with a bunch of washers to fill the gap). I also have a Cherokee with a tire carrier and i have never had a problem with it. The mounting is very similar on the cherokee and beefier if anything on the wrangler.
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Old 10-30-2010, 03:11 PM   #7
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is that a bracket i see in the middle? if so i'd put the bolts all in and tighten from the middle out. no need for washers for spaceing, just tighten em up, it'll pull in. fit, weld, bolt things together all day-if you saw what some of the structual looks like when we get it you'd be amazed. granted they should have straightened it out and all they'd probably do is block the ends up and clamp/porta power the middle(or several other ways-me, i'd build/weld a bridge to my table, center bow under it and pull up on 1 end with the jib crain-it should be fine
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Old 10-30-2010, 07:33 PM   #8
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Agreed, tighten from the middle out and don't use washers. There may be a little bow to it but it will pull right in. It's also possible that the piece that the bumper mounts to has the bow and not the bumper.
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Old 11-01-2010, 12:06 AM   #9
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So the bumper maker told me the gap is intentional. It is to load the mount points for strength and prevent rattling. Does that make sense? It seems counter productive for the strength argument as there is a constant stretch on those bolts but I could be totally wrong. Also, it doesn't seem like it would rattle if all the bolts were tight anyway. I don't know what to think. It just seems so counter intuitive to have that gap.
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Old 11-01-2010, 12:44 AM   #10
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Quote:
Originally Posted by crumb
So the bumper maker told me the gap is intentional. It is to load the mount points for strength and prevent rattling. Does that make sense? It seems counter productive for the strength argument as there is a constant stretch on those bolts but I could be totally wrong. Also, it doesn't seem like it would rattle if all the bolts were tight anyway. I don't know what to think. It just seems so counter intuitive to have that gap.
I don't think that looks right. My Olympic bumper is completely straight, and it was completely straight before I put it on. I don't mean to put down your bumper, but I've never even heard of jeeperman. And if they sent me something that looked like that, I'd be sending it back.....pronto.
Where'd you get it from?
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Old 11-01-2010, 07:42 AM   #11
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I don't see any issue with it. The physics of the preload make sense. Tighten from the inside out and you'll be set.
I have installed this bumper/tire carrier and it is the nicest on the market. The only company I've seen to put out a bumper that rivals is the Hanson Offroad rear bumper/tire carrier. I don't consider the RockHard 4x4 since it is essentially the exact same bumper as the Jeeperman.
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Old 11-01-2010, 08:07 AM   #12
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I've installed a similar bumper on a previous Jeep that I owned and it had the same gap but I didnt think it was really an issue because it closed right up when I tightened the bolts.

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