ARB bumper protection Question

DiscoPhoto

Well-known member
Jul 23, 2012
2,581
76
Vermont
I think most others will wise up and not run an ARB. A lot of us have made that mistake already, myself included. Don't get an ARB D2 bumper.
 

Maximumwarp

Well-known member
Mar 22, 2015
836
26
Fairburn GA
I had a quick look at your profile and in that picture you can actually see the lower ramp that feeds air to the bottom of the radiator and a touch of the radiator body as well.


BTW, did you find that your truck ran slightly hotter with the ARB? I ask that because without covering that hole the compressed air can escape down instead of the more resistance path of passing thru the radiator body.

thanks in advance for a reply and if you can post that picture on your profile i think it might help others visualize the potential issue.

good to hear however you did not have an issue

Yeah, the scoop was still there. The bumper was installed on the truck when I bought it, so I was never able to compare the before/after temps, but I never really ran hot. 205-208 in the summertime with the AC on. I did plenty of driving on dirt roads behind other trucks and never had anything come up and hit the radiator, but YMMV.
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
I think most others will wise up and not run an ARB. A lot of us have made that mistake already, myself included. Don't get an ARB D2 bumper.

You miss the point, i have an ARB bumper currently and like it. I am not a rock crawler.

LfvMqfZm7w3_a4A5I6gD1brqR4jQrdKKTLA29CRU9Fff-kQ8t4Gm2wnaslvXCJiizcwM3RmFhUNFW2Z-tXX8MBNFY8Tu0iDvv3xgKQZUjFRr1J7lZ5qT6EdSwIzkZ7PpoHn5f-_h95g21sbJITwRu9L9TGpWdEgeG6aY6k8fh_A629-4fzkBA_mAq1nPR4IwwaMo9OLTjlmqBOAdyW3IkUzkgZm7kOozRyPfjwyB07ybS5mfIdrw-7vNbMOTH660TBGuxMHQjgbhqNlPWJ1F_GZnQQ_Nz28fo9LUKwloaI7U_dP_oD2JIOLdEVUvTp0u9i-Vdlllbt39wNSJVFzjS8oQru4qQs6hGJ7H5afNyKBe6g_j1r_SXFO0j7i_pPhM1ug7p-TdU5oYOj1c5apiZNzEc4W8MwhYDWiH_SiH6u8EiPK0m6Kg9bOK1phYur5kGDTlBSlbBXgv84k0DggtdWtZJoJ2zsyF191HPGCknkUvbB3gPNwVQHVK4x8ozk9TjfPA6W9hS57YvMi8cDZQfoEXbsea84S8suEcNuyDpYizxuGCjlDlE1h3bC6qo_e0y6dByckvR2FNMs9wcCC6hBR-X-Zki7N3aVy7XD91MkM=w1448-h989-no
 

Howski

Well-known member
Oct 19, 2009
1,499
213
Alabama
This is huge, like stuff a 40lb dog in size hole.

This is quite a unique form of measurement. Like everyone mentioned, ditch the ARB and get a Bottorf. You will hate the ARB when a 40 lb dog or rock gets stuck in your radiator!
 

DiscoPhoto

Well-known member
Jul 23, 2012
2,581
76
Vermont
But it doesn't have a winch, it doesn't have recovery points, and it resembles this
article-1381120-0009083C00000258-746_634x396.jpg


Otherwise, what are you worried about? You admit that you don't really "off road". I've never seen someone damage a radiator that has an ARB installed, especially when they're not doing much offroading.
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
But it doesn't have a winch, it doesn't have recovery points, and it resembles this
article-1381120-0009083C00000258-746_634x396.jpg


Otherwise, what are you worried about? You admit that you don't really "off road". I've never seen someone damage a radiator that has an ARB installed, especially when they're not doing much offroading.

Actually the one designed for the Disco 2 has two recovery points the later generation ones do not. There are two attachment points that go direct to the frame on the bumper that are designed as shackle attachment points. On later versions ARB directs you not to use the bumper for recovery (beyond the winch).

As for the winch, the insurance company paid for the bumper as my deer strike killed the stock bumper and i am trying to decide which winch i will choose. It has only been a few weeks since i got the front end back together.

Also i prioritize other fixes to the Disco that have priority like the new fuel pump that was leaking i just got done today. And a complete set of hoses, new electric AC fan and replacement of the clutch fan. As well complete fluid changes except the brakes which i am getting to.

BTW, I have a Warn on the Nissan in that ARB bumper does not have recovery points... to that vehicle i added recovery points.

And as a final point, i am not sure you get to define traveling off road?
 

ERover82

Well-known member
Nov 26, 2011
3,923
460
Darien Gap
Stock bumper seems to work fine for this guy. Honestly, if you're not rock crawling or extreme wheeling, the stock bumpers, sometimes with a mod or two are great. They don't look like catchers masks, are light weight, cheap to replace, and can accommodate winches with the proper mounting kit.

DSC07165.jpg
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
Yep those holes are meant to bolt a highlift adapter to it. Not recovery points.
large_454_jack.jpg

65826.jpg


I think what you will find is the bumper you have pictured is actually for the Defender (picture added), and the high-lift jack in your picture are actually in those one of those two holes on the bumper. Those holes are listed as high lift jacking points. you will note the defender does not have a flat surface to position the jack on so they provide those holes. There are similar openings on later ARB models for the same purpose to include the one i have on the Nissan. They are the small square cutouts under the bumper. I can provide a picture of the ones on mine if you request tomorrow

65823.jpg


Note this picture, which is on a disco two also which is there Deluxe bull bar (not the one i have) is missing the shackle attachment points. This bumper also has cutouts under the bumper for a high-lift jack fitment. An easy way to distinguish the two is the inclusion of the fog lights and turn and marker light combo. Incidently, the new style does come with a small cover/skid plate for the bumper, at least on the Nissan anyway to protect the lower radiator.

When i spoke to an ARB rep about this he said that this change from the Old style bar to the new style bar was due to a change in how some Airbag systems function to deploy the Air bag so they changed the design. I asked him about the rating of the older style bumper shackle attachment points he could not give me an answer.

I then talked to one of the PHD structural engineers in our company about it who comes to lunch frequently for an evaluation and he looked at the materials and how the bumper was connected and came back with a conservative rating of about 18k lbs based on his evaluation. He noted given there are two points he recommended using a bridal style attachment if the pull was going to be severally off parallel to the direction of travel. Then again it is his job and is a published engineer who specializes in this kind of analysis.

so you can compare here is the old style bumper that i have


Um60cXfDeec15NcIfDFN_lub6QhrjCAz7e926ZRbwPc96CgdqEIiqvv8GT4xYdCYMPMGjQehpD4uzbrEatgoTtn7zQCEcr4HHcYKj-1ZpE9gQDKSxMETWxv3v1rxoRVE8n5ngsiLjqNDww0PHrXeUQOh6SA-a1Ib01grL-vyDvGdz72zkEqpEDt2Id2mcyhmwDNon_uL3lZUDB3OoOnSdwVxmxFtzUvudx7VFUNmotcmj-UzWZKLvb72Oztu61ZtUzq2vcJHDc6McwUaFrQVefzk_f-3vrL4bLR0ne7gB25jmFcdEvqg16Vx4zfEd9PnGEUeil6tQgOgt5iRZDhfs3_SOn37TTeMTlV5OXxbgbeSXF2g8W9Rlm-tFc1poeZWXdZWb4QxKaKsh53wJF1W-XF6hJQKZZjWCPRIOCY1GC_2Gu1Hd1SnbCaO2WRqDfhs87biXN99ihz8nNV2oIE4DS_ai4d53BmynAYMEl0D-qy61dctv7U3WkpFsZERM6h4sWCmfBM7QD8MLuf07hFWjxdc92ykD5RcU8VtKbM81KKzTP6GYsBHzBLTFSOMRc33q1RR9SOkGY8oisUTN2XSwa8OTp8Pc3Qo0bTIwnUrRjs=w1448-h989-no
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
Stock bumper seems to work fine for this guy. Honestly, if you're not rock crawling or extreme wheeling, the stock bumpers, sometimes with a mod or two are great. They don't look like catchers masks, are light weight, cheap to replace, and can accommodate winches with the proper mounting kit.

DSC07165.jpg

Great looking truck!
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
This is quite a unique form of measurement. Like everyone mentioned, ditch the ARB and get a Bottorf. You will hate the ARB when a 40 lb dog or rock gets stuck in your radiator!

i chose the dog size and weight as most folks know about what a 40lb dog looks like...
 

ERover82

Well-known member
Nov 26, 2011
3,923
460
Darien Gap
Clever ARB. Look exactly like recovery points to sell bumpers, but by the time they find out ARB is long gone with their cash.
 

Blueboy

Well-known member
Apr 20, 2004
3,218
470
Back in the USA; Rockwood, PA
Don't know about deer or other wildlife, yet, when I hit an old Cadillac that turned in front of me at a stoplight while going about 45mph, the ARB bumper took the hit and given the impact was on the right side, think it held up pretty well. The RRC frame was bent unfortunately yet the driver's door opened without any issues and no injuries.
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
here is the picture of the opening. Sadly it does not show scale well but you can see the air ramp and bottom of the radiator (you will note the AC fan). As i said the whole is huge and a direct path to the radiator.


Kao8dKoUfdNTcr-UAW39xAJwZZmOycAO-qeofF7ewM2k_OkbmeXbdtzj67zZymCiKX7i2s9Fobw19F8V-WNsxrpCU3Bw8fM7iysjmqsWQAjiD9-sf3BQNDRSfwh9_862_cbEGlkyH-9CzJ7GuBRLGeMf9WvvMYLVCloJFaqF-lcCn-DwNUTLqgqUM-iRFgvfBuwZy9KkRg7Q8ECsBAIHqznNnmaSHJmzOav2ruGHPHRLQ5t2H2uav8OmNZbMKKRyNzIylwYR5j-Joa69IPnrL7OKOzxz0Q8E6P3H94BZJ7wKRMUvZQp-s5XFddLxymcAWV_Z6LN6YPsJZ3mF4xgPqqKHYQAP_DBJonGWVNWMnYnqzmU-y2YFIzMy--SYhcaUqYBQbfR7pfjekV433-RjgfOq_XmWl44gJKXpuyj7AufB3RQ7Nnr4cLQOIBKSSVnL23ku_gFVH7brGVuuQJnchzlaJy1rwod3rfmv-juFBW0KvymXGTVTSBeyP921PRr89N_bl28wEeeJ1q4dY71wSCEh8jgicmRQhzQ-uVo9NVWQLS5uFW3Am3W10yTwIhCOPSvrn-ZLoLPjpZpf5Fshvbm8A_MgD9rIuTBiFkceX8I=w1319-h989-no
 

coop74

Well-known member
Dec 10, 2015
287
7
Alcoa TN
Clever ARB. Look exactly like recovery points to sell bumpers, but by the time they find out ARB is long gone with their cash.

I think you will find that ARB has been around for a long time and have satisfied customers around the world. You can actually have some of their bumpers added as original equipment from the dealer in some locations...

Also if you know anything about Euro standards as well as Australian road standards to be certified for the road they have to meet strict crash and protection standards. they are also designed and tested to work in conjunction with your original equipment safety gear...

Feel free however not to like them, but to be intellectually honest you cannot question their mfg or safety standards...
 

Howski

Well-known member
Oct 19, 2009
1,499
213
Alabama
I'd be more worried about punching a hole in that unprotected differential than an errant shaped rock slicing open your radiator but what the hell do I know I've never owned a Nissan or been in the Army
 

DiscoPhoto

Well-known member
Jul 23, 2012
2,581
76
Vermont
If you knew anything about Euro standards you'd know they banned manufacturers(like Land Rover) from offering stout protection on their vehicles years ago