I fully agree, this is why we find out about this issue on here first And I'm very happy about the good technical discussions in this forum.
It is to be expected that more vehicles with bumpers have this issue. But a case with no bumper gives the prove that it cannot be blamed on the bumper...
The one vote you got stock isn't really stock...it was bought USED with mods...it may have had a bumper before
I agree with you. My point is simply that people who mod their rides typically do so in relation to the amount/type of offroading they do. In one sense, it is offroading itself that is causing the problem, not bumpers or lifts.
The FJ is an offroad vehicle and this problem should not be happening...mods or no mods.
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Compared to what? At what cost? What hard evidence do you have? -Thomas Sowell
stock bumper is not what you could call rigid. It flexes and bends, its plastic. I dont think a stock bumper can put too much stress on the body.
The frame is pretty rigid though. Aftermarket bumpers could be compunding the issue, but I'd be willing to bet that sheet metal bulges/flexes right in those crumple zones when you're severely articulating the frame, i.e., rock crawling.
-voodoo
__________________ 2007 FJC
Black Diamond | AT | TLCA #16337
Last edited by Bad Voodoo : 08-12-2007 at 03:00 PM.
Better connection/isolation between the body and the frame is what I was thinking of earlier in the thread. A new system will be nice if you come up with one but I'm going this way in the meantime. Here is the link again for better mounts
I am calling Monday to talk about my application. The are using them over on TTORA in 4runners etc very successfully. I think this will help.
I can't really comment on these specific bushings relative to stock, but one thing that's for sure is that the slimmest bushing is the one in the front. Unless you're going to put all the other ones on top of hard spacers and replace this one with a "long travel" version, you're not going to have a huge effect. This sheet metal is SOFT. I can deflect the body toward the bumper just pushing on it with my hand. That means I'm actually compressing that rubber already, and probably flexing the spot we've been talking about.
BellyDoc
Do you think we should weld a piece of angle iron along the entire crumple zone, or would that cause a bigger issue. I.E. Large piece of metal coming at you in an accident.
Honestly, if you get the crumple zones doing their thing, there's a much bigger piece of metal coming at you.
The frame is pretty rigid though. Aftermarket bumpers could be compunding the issue, but I'd be willing to bet that sheet metal bulges/flexes in right those crumple zones when you're severely articulating the frame, i.e., rock crawling.
-voodoo
I think anything is possible in relation to this particular failure. Thats what is so screwed about the whole thing. Who Knows!!! I hope we get some difinitive answers soon.
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When small men cast long shadows, the sun is about to set.
Since I'm not fluent as others in this thread when it comes to the diagnosis of the problem, I'll reserve what little I have to contribute until I know more about this.
However, I do tend to agree with homedadr that an aftermarket bumper's contact with the body might be the most logical impetus. And, I also agree with bellydoc, in that patching/welding this problem (which has to be a symptom of something else), will only deflect the problem elsewhere. (Kinda like a lower spinal fusion where the upper vertebraes incurr the stress and eventually have to be fused as well. I know . . . dumb analogy. Sorry, doc.)
I am, however, very curious if Warn or ARB have been contacted about this potential problem . . . . if in fact it's their cause.
And, I am very concerned about this. This is NOT good.
That's exactly the physics. You are correct. Note that when a spinal fusion patient gets in a car wreck, the will almost assuredly incur a new fracture at the end of the hardware reinforced section. This is because a stiff titanium lever has been effectively pre-installed and has concentrated the force.
And I'm very happy about the good technical discussions in this forum.
