To answer the second part of your question, installing an ARB locker generally offers a strength improvement for your whole ring and pinion set (pinion gear and crown wheel). It is much more resistant to allowing the ring gear to flex away from the pinion and therefore it keeps your ring and pinion teeth meshing correctly where your factory differential may let the teeth mesh stray from the flex and form highly stressed zones, which could potentially cause a breakage.

I just ordered a front and rear ARB locker for my Jeep... can't wait to get them installed.

Hi Pauly, the figures you've stated are actually incorrect. It's not possible to state a percentage figure difference between the products as the failure point of the ARB Air Locker is not known because the axle failed prior to the Air Locker, unlike the copy we tested. The point of the video was to demonstrate that with an Air Locker installed, the axle will fail before the locker, which is easier and less expensive to repair/replace. Hope that clears things up

ARB is the way to go. We are using them in comps they are by far the strongest and it is alot easier to change and axle than the diff.

Hi Chris, bits of broken axle shafts are capable of causing damage to wheel bearings, diff bearings, pinion bearings, ring and pinion sets, oil seals (wheel and pinion), as well as the internals of an Air Locker if they manage to get inside. This goes for broken ring and pinion teeth also. For this reason it's advisable to replace broken internals ASAP. ARB employ the strongest drain plug magnet on the market for our diff covers, and they can literally draw the broken bits out of the diff oil.

after this video i would clearly choose the chinese air locker! why!? because the arb test is bs! the axle shaft on the arb was an aftermarket unit and the other one was an oem shaft (you can see it in the video), also most of the time the arb breaks before the shaft breaks. i got an rack full of broken arbs, and the next thing is 90% of the time the arb leaks air! the worst arb is the ford 9" unit !

@q8yba7t We're assuming you are talking about a LandCruiser with a centre diff lock. This matter is covered in great detail on the Ask ARB page of ARB's website.

Absolutely!

So... the thing survives up to within 500 footpounds of twisting the axle off of it. That sounds like a VERY successful test.

Wherever possible we test with the strongest available axle shafts that we can find. These can be chromoly or chrome vanadium or nickel alloy, etc. We have found no directly dependable correlation between axle material composition and torque failure results. The quality of the material, design of the shaft, machining processes, heat treatment processes and surface processes all play a part in determining the strength of any shaft.

Did you guys test I against ( OX Locker )

Hi Knkoon2010, if you email our Exports Department at exports@arb.com.au, they'll be able to assist you.

Hi Chris, I've had our Air Locker engineers have a look at the video and this breakage isn't related to the Air Locker. Unfortunately though, given the limited detail, it's impossible to diagnose the specific cause.

The music is annoying. I like ARB's products. I have used my locker here and their over the years. Its starting to stick engaged though. I hope I don't have to take it apart again.

@sierraduke we've heard this rumour too and I'm happy to say that it's totally incorrect. ARB Air Lockers are, and always have been, made in Australia using Australian parts. We've never setup production facilities in China or commissioned any Chinese companies to manufacture Air Lockers. Hope that clears things up.

the question you should ask urself is....... exactly how much pressure or strain you have to put on your vehicle to gain 6412ft or 6929ft.... you have to been really driving like a maniac up a rocky surface, wheel spinning on tar to gain that much strain....any stats or comments?

is it possible when the hemi-shaft brake ,the small broken pieces to remain inside to the mechanism of the arb locker and destroy it? or the gears of the arb locker are unbreakable? is it true or false that when installing arb locker ,this protect the pinion gear and destroy only the crown?

how much do lockers cost installed and if u dont get dual do u get front or back done ?

I already have a Powertrax Lock Right locker in my rear axle as of now though if it ever goes out i will be looking for something a little better and I see this. My question is does ARB make this Air locker for a 1997 Chevy Silverado K1500 5.7L with a GM 8.5" rear axle?

do u no if u can get them on a older 89 hilux? and would it cost more?

so.. can you explain why happened this ? watch the video (rear broken 8" crown w(arb locker) is it a bad adjustment (between pinion and crown wheel) from the engineer? is it normal to brake the teeth from the crown but not in a sequence? as you ll see some are ok ,then some are broken ,next again ok,etc..also some of them are broken to the inner side and others to the outer surface... thanks for your immediate reply

my arb air locker failed the bolts snapped before the any drive shaft failed on a front isuzu vehicross quite disappointed putting a temporary Axel in until it is fixed or replaced yet to inspect inner diff ,busy getting the vehicle back on the road will be trying to contact arb soon 22/12/11

I'd like to see the same test only ARB vs Powertrax lock-rite...

i want to see more of these and with a 14 bolt

Will an ARB work with an IFS truck?

6.929 lb = 3.5 Ton thats impressive ARB rulz

wow ARB rules!!!

Pick your poison I guess, only 500lbs difference when youre up in 7k isnt that rediculous, either leave with a broken axle or leave witha broken locker. Its all the same.

4000 for both installed

not give pajero sport 1999?

@8injoe Of course it would be somebody who is running the imitation lockers that would defend them... its been 4 months since your post, broken yet?

im sold

@stingraystud , I did not know Japan made imitation. I thought it was just chinese. This is news to me.

@saminalla I was crawling and just blow up the houssing and other things, en pocas palabras trono como chino, ni aguanto nada,

@morbid1ification Haha not saying it wont fail, chances are the probability of a high quality air locker (ARB) failing is a lot lower than the chinese copy... the torque figures of it breaking, no car could replicate, its the life of the product that draws a line... & whilst were at it, if the only thing keeping you on tough tracks are air lockers, then you deserve to get left out there... give me a yell when your lockers seize up and i'll tow you out...

They could have done this test with a patrol axle. . . That way there might be more than a 8% difference in the failure piont. toyota axle. . . 6900lb and it broke. chinese locker nearly broke it aswell. . . 6400lb, They should have used that machine to break the arb locker, that would have shown the difference. arb -23,000lb china 6,400. Nearly a pointless test as it was.

Breakage / Failure / Collapse figures notwithstanding why hasnt anyone posted a warning or written a bad experience ie.left stranded in the scrub,towed out or complete diff destruction regarding these cheap Chinese copies??? I would suspect that if they were as inferior as this video would make you believe then surely the insular tight knit 4x4 community would have totally wiped the product and slammed the chinese copies accordingly...... copies at all or via any medium available.

كم سعره واصل السعوديه !!

Now I'm cheap and have bought lots of stuff from China. 10 tonnes of tiles and 2 spectacular staircases all for about 10% of the US price, but I draw the line here and the Chinese part is still about 60% of the US price so not that much of a saving. ARB gets my money. I'll save my money on other items.

i dont believe it, my original locker ARB blow up like the cheap Chinese copy

This is why I don't buy chinese. There's a huge difference between quality machined gears and crappy cast gears. I like to buy American, but the Aussies know their 4x4s really well.

lol 3:57

LOL lukeo3 got owned

learn how to fit them properly

Buy cheap........buy twice and be angry about not buying quality in the first place. And another rescue story to tell depending on where the fake collapsed.