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Go Back JeepForum.com > General Technical Discussions > General Jeep & Off-Road Equipment > What? Why do I need a locker? I thought I had 4X4!

The Original 3/8" Ruffstuff Diff Cover!Ruffstuff Axle Simple Swap Kit!The Ruffstuff NOT Universal 4 Link Kit!

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Unread 11-09-2012, 08:58 PM   #106
05TJS
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Great posting!

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Unread 03-31-2013, 12:56 AM   #107
Notabene
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I've been lurking on quite a few forums for a while but cant help but ask for help from someone to explain something I can't get my head around in regards to auto lockers.

Jerry mentions that auto lockers operate on a ratcheting type system...

So what goes on when you reverse


If it's a one way ratchet system, does it not mean the ratchet will ensure no motion going through to the wheels when you are running backwards.

It's probably an easy answer, but it would be nice to know from a technical point of view how it works in reverse, and if the auto locking design is just as effective and faithful in reverse.

A manual locker is just as good for forward and reverse. What about the auto lockers?

This is a very educational and interesting thread, explained simply. That's why I decided to whack my technical question in this particular thread on this forum, so it's included for ever
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Unread 04-01-2013, 03:09 PM   #108
paul246
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The Aussie auto-locker isn't really a ratchet system per se, but utilizes interlocking teeth that have double bevels. When the locker locks up it is a solid connection, no ratchet at work. The two halves of teeth can be easily moved apart with light spring pressure when torque is reduced or removed. There is sometimes a ratcheting sound emitted when the differential is "open" when the auto-locker has disengaged when the vehicle is doing a turn on dry pavement. The auto-locker performs the same in forward or reverse.

The Aussie is a nice piece of gear, got my Jeep out of some super sticky muck holes.

Check out their site for some FAQ's.
http://www.aussielocker.com/how-it-works#answer3
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Unread 04-22-2013, 06:36 AM   #109
Notabene
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Ahhh. I see.

Thanks for explaining Paul.
I'm late replying because I never received an email alerting me to your post after I subscribed to this thread

I'll check out the Aussie lockers.

I've gotta choose one soon.
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Unread 12-01-2013, 10:10 AM   #110
Daniel35
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Very interesting post
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Unread 05-27-2015, 01:26 PM   #111
TJoker
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I have Spartan auto lockers in mine. I will tell you that if I had it to do again I would go with a electric locker in the front. It makes a lot of popping sounds when you turn and sometimes it scares the crap out of me. I ended up pulling mine out of the front and putting a open carrier back in. It isn't that bad at all in the rear differential.
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Unread 12-23-2015, 04:27 PM   #112
DHart
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Quote:
Originally Posted by OregonVette View Post
Thank you for the great post Jerry!

Say, in regards to many of the newer JK owners, the most modern JK has an outstanding BLD, ESP, Dana 44 rear and some (most Saharas) come with TracLok. Your OP was written before the new JK came out. If I could just add a few things so newer jeepers just don't run out & buy a new locker which may be unneeded.

After just completing the Naches Trail run, you'd be surprised at how capable, flexy, and downright awesome the most modern JK is. Granted, I'm old enough to remember having to go outside and "flip" the hubs to get them locked, i wholeheartedly appreciate fully locked rigs but...

Before this last 5 day adventure tour, I was certain I was going to add ARB air lockers to the Four door JK Jeep. Nope, again I was thoroughly impressed at how well these three components work together (all JKs have a D44 rear):
1. Traclok
2. ESP
3. BLD

Plus, adding front sway bar disconnects will keep the front two tires on the ground, where they belong even in the most funky off-camber pucker inducing event.

I will not be adding air lockers to the JK after all.
At the end of every day, all the old-timers in their flat fenders and even many of the youngster in their TJs would come over and look at the JKs and say how impressed they were & how they were certain the new JK could never keep up etc... Once they get towed out by a "mini-van" their tune changes a bit!
Yes, thanks Jerry for the info! Very informative.

As OregonVette mentions... for those with late model JKs, how much do the features on the newer models ameliorate the need for lockers? For example, my JKU Sahara sticker indicates the following:

"Traction Control" listed under Standard Equipment
"Electronic Stability Control" listed under Standard Equipment
"Anti-Spin Differential Rear Axle" listed under Optional Equipment

Do these features, when combined with lift and off-road capable tires, significantly reduce the need for lockers for all but the most difficult situations?

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Unread 12-27-2015, 04:55 PM   #113
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Quote:
Originally Posted by DHart View Post
Yes, thanks Jerry for the info! Very informative.

As OregonVette mentions... for those with late model JKs, how much do the features on the newer models ameliorate the need for lockers? For example, my JKU Sahara sticker indicates the following:

"Traction Control" listed under Standard Equipment
"Electronic Stability Control" listed under Standard Equipment
"Anti-Spin Differential Rear Axle" listed under Optional Equipment

Do these features, when combined with lift and off-road capable tires, significantly reduce the need for lockers for all but the most difficult situations?
Onroad those things can be valuable, but offroad they are of little value IMO. They in no way get you even remotely close to being locked.
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Unread 12-27-2015, 07:38 PM   #114
DHart
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Originally Posted by biffgnar View Post
Onroad those things can be valuable, but offroad they are of little value IMO. They in no way get you even remotely close to being locked.
Thanks. I now have a much better understanding of the value in the Rubicon's lower gearing, Dana 44 front axle, and the lockers. Rather than pour several thousands of dollars into our Sahara for aftermarket gearing, adding lockers, rear tire carrier, D44 front axle etc. I think it makes a lot more sense to trade the Sahara for a Rubicon, as the upgrades I have been wanting to do would already be done at the factory and will retain much of that value at resale/trade down the road, whereas the aftermarket upgrades done to the Sahara would not likely return much, if any, more than a stock Sahara at resale/trade in time. And.. those upgrades would be financed into the vehicle loan on the Jeep, rather than be big dollar outlay from my pocket right now.

So, for me, I think doing a trade of our 2013 Sahara for a 2016 Rubicon makes the most sense financially, in the long run.
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