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Unread 12-09-2008, 05:26 PM   #1
plyguitar45
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aussie locker question

ok i was looking at the aussie locker and had a few questions.
i did a search and couldn't really find anything.
sorry if i missed something.

but i was looking at buying an Aussie Locker for my front axle and it says on their site that if i have a limited slip/posi carrier than i will have to replace it with an open carrier.
so what do i have? everything is pretty much stock in this area.

also, just to clarify, having this locker means that whenever i engage 4wd, then the locker will be engaged?

thanks!

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Unread 12-09-2008, 05:36 PM   #2
provinT13
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You already have an open diff unless the previous owner put a limited slip in there. The locker will be engage itself when it needs to, that's why it's a non selectable locker. But if you're not in 4wd then the front drive shaft isn't spinning so it's not going to be doing anything (to my knowledge, someone correct me if im wrong)
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Unread 12-09-2008, 05:37 PM   #3
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Quote:
Originally Posted by plyguitar45 View Post
so what do i have? everything is pretty much stock in this area.
Youre Dana 30 is open if its stock.

Quote:
Originally Posted by plyguitar45 View Post
also, just to clarify, having this locker means that whenever i engage 4wd, then the locker will be engaged?
Correct, when torque is applied it will lock.
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Unread 12-09-2008, 05:42 PM   #4
plyguitar45
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ok thanks.
also, it says it doesn't work for "Dana 30a or Next Generation Differentials"

i'm pretty sure i don't have one of those, correct?
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Unread 12-09-2008, 07:17 PM   #5
95greenrio
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I'm pretty sure the Dana 30a is the ifs version. Either way, the one they have listed on their site will work in your Jeep.
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Unread 12-09-2008, 07:43 PM   #6
ritjobbie
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I just installed an Aussie in my D30. It should be invisible when you are in 2WD. The locker will cause your front driveshaft to spin all the time (like a TJ). Unlike a TJ, the YJ front DS is not balanced from the factory. You might get some slight vibes. No biggie. It happened to me. I'm dropping off my DS to get balanced soon enough.

Once you put the locker together, you'll really understand how it works. I'll give it a shot, though:

The locker is always 'locked' under normal circumstances. When you aren't applying tons of torque to the axle, the gears in the locker are kept together only with the force of four small springs. When you go around a corner, the force of the springs is easy to overcome and one wheel is allowed to go faster. When you jam on the gas (or when one wheel slips) the gears in the locker try to rotate past the pinion shaft (cross shaft), but they can't and instead the gears engage engage really hard, thus locking the axle.

Since the passenger axle disconnects when you are in 2WD, the locker won't interfere whatsoever with your normal driving. You'll only notice amazing traction in 4wd.

It probably took me longer than most to install mine--I fixed some other front-end problems along the way. I could probably do it in 2 hours a second time around. Take your time and keep everything clean.

Do it, you'll be happy.
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Unread 12-10-2008, 12:23 AM   #7
RikRotorhead
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^^What he said is correct. The front drive shaft will spin all the time.
If you flat tow your Jeep, the drive shafts are connected together inside the transfer case in 4wd AND neutral, but not in 2wd. So if you put the t case in neutral, it will cause the Jeep to tow funny, and cause problems.
Solution(s):
1. disconnect the front drive shaft at the D30 yoke and tie it up
2. engage the right half of the axle if you are going short distance and you have an automatic transmission. It will scuff the tires a bit tho'.
3. leave the t case in 2wd, place the transmission in neutral only on a stick shift trans.
4. put it on a trailer.
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Unread 05-13-2009, 08:17 AM   #8
Bigdogk9
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What if the passenger two piece axle has been replaced with a one piece and the air actuator removed. What problems will one see with the Aussie locker?
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Unread 05-13-2009, 08:43 AM   #9
Louie4
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In that case you will probably only hear clicking noises when turning, with the window or top down, going slow. Otherwise, not much difference. It will put more 'wear' on it I guess, but no more than what a rear locker does. Shouldn't make or break the decision to do it though.
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Unread 05-13-2009, 08:45 AM   #10
ritjobbie
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Quote:
Originally Posted by Bigdogk9 View Post
What if the passenger two piece axle has been replaced with a one piece and the air actuator removed. What problems will one see with the Aussie locker?
I know plenty of TJ guys run an Aussie up front (no axle disco). A friend of mine runs front and rear lunchbox lockers in his XJ. I've heard stories of wheels locking up funny on icy highways, but I can't really speak from experience. I would assume that under normal circumstances, the side gears will be allowed to ratchet during corners because in 2WD there is no load on the front driveshaft.

I'm sure if you lurk in the TJ forum for a few minutes you'll get a better answer.
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Unread 05-13-2009, 09:17 AM   #11
Bigdogk9
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Thanks for the replies. I'm going to proceed with the install. When I replaced the axle I had my front drive shaft balanced to stop some minor vibration.
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Unread 05-13-2009, 10:47 AM   #12
Beater37887
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Quote:
Originally Posted by Bigdogk9 View Post
What if the passenger two piece axle has been replaced with a one piece and the air actuator removed. What problems will one see with the Aussie locker?
I just replaced my front axle with a one piece and at the same time installed an Aussie. I have had no problems driving it on the highway and don't even notice its there. You will however notice a great difference in traction on the trails, best upgrade I've done. You will also hear it popping on the trail from time to time, once you get used to it that's no big deal, its not loud. I didn't have any problems with the balance on my front ds so I didn't bother getting it balanced, couldn't feel any more vibration than before because of the the tires. Install was really easy and just a matter of keeping everything clean. Good luck and enjoy!
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Unread 05-13-2009, 11:05 AM   #13
lclark2074
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Quote:
You already have an open diff unless the previous owner put a limited slip in there. The locker will be engage itself when it needs to, that's why it's a non selectable locker. But if you're not in 4wd then the front drive shaft isn't spinning so it's not going to be doing anything (to my knowledge, someone correct me if im wrong)
On a 30 the driveshaft will turn all the time in 2WD or 4WD becuse there is know wheel disconect on the driver side
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Unread 05-13-2009, 11:35 AM   #14
fyrdriver
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Quote:
Originally Posted by lclark2074 View Post
On a 30 the driveshaft will turn all the time in 2WD or 4WD becuse there is know wheel disconect on the driver side
Not true, the carrier spins in the diff and with the axle disconnect there is no resistance from the pass side. I know this because I too had to balance my driveshaft after getting my aussie.
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Unread 05-13-2009, 12:25 PM   #15
timatoe
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Quote:
Originally Posted by lclark2074 View Post
On a 30 the driveshaft will turn all the time in 2WD or 4WD becuse there is know wheel disconect on the driver side
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Originally Posted by fyrdriver View Post
Not true, the carrier spins in the diff and with the axle disconnect there is no resistance from the pass side. I know this because I too had to balance my driveshaft after getting my aussie.
True, this is actually the reason behind the stock disconnect system on the passenger side.
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