ARB Bumper Differences (1 Viewer)

[LCHardriver_02]

Shotts,
On a side note...when you get that call that your wife, seven and four year olds are in a head on collision... I never second guessed my decision to buy the LC knowing that they would be safe in a rolling tank.

This is reason no. 1 why I wanted our truck so badly... it is also the main reason that I want to add the after market front and rear bumpers. Having more clearance off road is the icing on the cake... we use our LC everyday and in the winter, it is my wife's DD because she is safe, regardless of the road conditions and the crazy drivers.

Back on the ARB trail, I would be interested to also know how the different models fair in a front-end collision.

Jonathan

 

[JDMGoodness]

I would be interested to also know how the different models fair in a front-end collision.

Jonathan

Not that this is a LC but a GC instead. I was involved in an accident with an ARB equipped vehicle. If ARB makes a bumper for a vehicle I drive you can bet I will have one installed.

 

[2000UZJ]

just take the bumper off and get a new jeep!

man those things are tough. i didnt realize that.

 

[staggrlee]

I'm just in the process of adding a 03+ Combo bar to my 1998 LX470.

What other modifications are necessary to fit an '98-'02? I'm looking at an '03+ combo bar to put on a 2000.

 

[yoter100]

If its a toyota, all you need to do is cut a small 3inch piece of the frame that hangs down..... 10min job.

 

[hoser]

What other modifications are necessary to fit an '98-'02? I'm looking at an '03+ combo bar to put on a 2000.

No mods necessary on early LC. Upper tabs cut off on all year LX's. That's it.

 

[dclee]

just take the bumper off and get a new jeep!

man those things are tough. i didnt realize that.

IMHO, this is sort of misleading. The JGC is a unibody truck, like a car or minivan. The body is design to crumple like that, so of course most of the energy went there as opposed to the ARB bumper. I would not take this as a good example of what would happen to the bumper on a traditional body-on-frame truck (as the Land Cruiser is).

 

[BendFJ]

John,
I read your response and couldn't figure out how you knew my name! Too funny.
Steven Lord
aka Bendfj

Lord, that's horrible. Sorry to hear that. Not sure on the airbag vs non-airbag deal/topic.

And yes, the 100 is a rolling tank. Can't imagine experiencing that collision in a say a Tahoe.

 

[1loudLX]

John,
I read your response and couldn't figure out how you knew my name! Too funny.
Steven Lord
aka Bendfj

I sekrit-ly told him




So I have these pictures of the two different bumpers, but totally forgot to get picture of how they mount underneath....whoops.

 

[LCHardriver_02]

IMHO, this is sort of misleading. The JGC is a unibody truck, like a car or minivan. The body is design to crumple like that, so of course most of the energy went there as opposed to the ARB bumper.

I would definitely want the bumper to take the bulk of the damage in a collision like the ones above. Those can be replaced a lot easier (and cheaper) than trying to straighten the body or frame, or purchasing a new(er) truck. That is why it would be good to see how these types of bumper mods help (or hinder) when in an accident.

I am also curious about the winching. Since the winch is fully enclosed, do you have issues with getting the cable / rope recoiled, or is this a non-issue?

 

[Liam]

No mods necessary on early LC. Upper tabs cut off on all year LX's. That's it.

i wished i knew that it was that easy before i bought my 98 ARB bumper. I like the way the new model attaches as opposed to how the older models attach.


does anyone have install sheets on both ??

 

[JDMGoodness]

I have the 03+ installation instructions. I'll see if I can upload them today.

 

[ShottsUZJ100]

john,
i read your response and couldn't figure out how you knew my name! Too funny.
Steven lord
aka bendfj

:d:d

wow!

 

[staggrlee]

... I would not take this as a good example of what would happen to the bumper on a traditional body-on-frame truck (as the Land Cruiser is).

That's a good point. With what little crumple zone there is, the major forces will be transmitted to the frame. You might have little to no visible damage to outer body components or the bumper itself, yet still have frame damage.

Still a far stouter setup than unibody though.

 

[2000UZJ]

IMHO, this is sort of misleading. The JGC is a unibody truck, like a car or minivan. The body is design to crumple like that, so of course most of the energy went there as opposed to the ARB bumper. I would not take this as a good example of what would happen to the bumper on a traditional body-on-frame truck (as the Land Cruiser is).

i didnt know they were, ive been looking around at different trucks, looking at there build structure... im quite amazed at how many are uni-body.


but you must say, thats still pretty amazing that a bumper can take a whack like that and still be in good condition. Even being a uni-body, the factory bumper would of been mangled beyond recognition.

im shocked, to say the least.

 

[dclee]

I would definitely want the bumper to take the bulk of the damage in a collision like the ones above. Those can be replaced a lot easier (and cheaper) than trying to straighten the body or frame, or purchasing a new(er) truck. That is why it would be good to see how these types of bumper mods help (or hinder) when in an accident.

I am also curious about the winching. Since the winch is fully enclosed, do you have issues with getting the cable / rope recoiled, or is this a non-issue?

If your first statement is true, then you don't want an ARB (or any steel bumper!). The impact energy has to be dissipated somehow (remember Newton's 2nd Law, energy cannot be created or destroyed), and usually this will take the form of noise, heat, and crushed metal and plastic in the case of a collision. The whole point of a crush zone is to absorb that impact energy before it has a chance to reach the passenger compartment. Unibodies do this much better than body-on-frame, because they lack that stout steel frame which resists being deformed by that impact energy. So, in the case of body-on-frame, that energy has to do something, and that something is to keep moving until it encounters something of less resistance (like sheet metal, glass, or the driver's chest cavity). Let's not kid ourselves, if safety were the number one concern, we'd all be driving sedans or mini-vans. The one exception to this argument is mass, which I will get to.

Anyway, the ideal would be progressive impact absorption by all components standing between the point of impact and the passenger cell. That is what the "flimsy" factory Tupperware bumper is designed to do, absorb some of that energy by deforming, then passing the rest onto the next "crush zone" in the system, hopefully progressively dissipating enough energy that little or none of it actually reaches the passenger compartment and does harm to human beings. By putting this massive, immovable steel bar in front of your truck, you have just guaranteed that those impact forces must go elsewhere (as seen in those photos), and in most cases that direction will be toward the passenger compartment.

The one concession one could make would be mass. All things being equal, it is usually better to have more overall mass than the object you strike, but I think that is only really relevant in the "passenger-vehicle-versus-18-wheeler" type scenario.

All that said, I have had steel aftermarket bumpers on most of my trucks (including the 100 Series, though not currently). But the reason has never been safety, but more for impact protection from animal strikes (i.e. keeping my radiator intact) and a place to hold winches, lights, and recovery points.

As for winching from the enclosed bumper, never been an issue for me.

My $0.02,

 

[LCHardriver_02]

You make some really good points and if my OEM bumper had the ability to take a winch and allow me the ability for recovery, without being completely at the mercy of God and someone else with a winch, I would probably not be looking at these options. As it is, I am, so I am also thinking of safety on the road too.

Definitely something to think about.

Thanks,

J.

 

[BendFJ]

my frame had to be straightened from my wifes encounter.

That's a good point. With what little crumple zone there is, the major forces will be transmitted to the frame. You might have little to no visible damage to outer body components or the bumper itself, yet still have frame damage.

Still a far stouter setup than unibody though.

 

[yoter100]

No mods necessary on early LC. Upper tabs cut off on all year LX's. That's it.

I had to cut some metal to fit my 98 with an 03+ bar? It was even in the instructsions...

 

[dclee]

I had to cut some metal to fit my 98 with an 03+ bar? It was even in the instructsions...

Are you referring to the tips of the frame horns? You'd have to do that no matter what year (though I heard the very latest versions, or maybe it was for the 200 Series, did not require this anymore). Anyway, if you have a bumper that requires the cuts, you'd have to make them no matter what year truck you put it on.