Rear Aussie Locker Initial Impressions

catalina34

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Yesterday a few of us from the forum had an install day at a member's house. We did several things on our trucks including tranny cooler install, replacing heater lines, throttle cable adjustment, 4wd trouble shooting, and the Aussie locker install.

We had the luxury of air tools which makes any job easier. The locker install took about three hours, but we stopped to bs, for refreshments, and for lunch. None of us had done an Aussie install before, although the awesome dude whose house we were at had done other lunch box installs before.

We used the instructions provided by Aussie maybe twice very briefly because the install is very straight forward, and again we had someone familiar with assembly and dis assembly of a diff. The most challenging part is figuring out how to put the springs in, and once we figured that out it was very easy.

After bolting everything back up and filling the diff with 80w90 gear oil we took her out for a test drive.

Once we pulled onto the street we heard a clanking with every revolution of the tire. We all had the oh **** look on our faces. I pulled over to check over things, and it turned out to be a big rock stuck between the treads of my MT's. After pulling the rock out we hit the road again making a number of tight turns both with power and without power.

Needless to say the locker exceeded all expectations. It was virtually seamless and you would never would know it was there unless you were really, really listening going around tight corners with a good amount of throttle input. After doing lots of reading about lunch box lockers I thought I wouldn't be able to apply any power around a tight corner without it locking up and hearing a big bang. I never got a bang, and it didn't lock up unless I provided a good bit more throttle than I would normally use to go around a corner.

In other words, driving normally, you would never know it's there. The gentleman who had assembled and used lock rights before said that the manners of the Aussie were much better (quieter, more seamless).

I think this has been the best mod I have done so far especially for the price ($260). I can't wait to try it out when I go wheeling again and in the snow. I have no doubt that driven responsibly the Aussie will be just fine in the snow and undoubtedly awesome off road. I will update this in the future when I encounter new terrain.

Edit: Just read this review which sounds eerily similar to mine: Pirate4x4.Com - The largest off roading and 4x4 website in the world.



Edit: We finally got some snow and I said I would come back and give an update on snow handling. It appears the positive reviews I read regarding snow performance were accurate. I was super excited to finally try out the Aussie and the MT's in the snow. As soon as I woke up I threw on some clothes and headed out for some snow fun. I took it easy initially to get acclimated to the driving characteristics of the truck. I drove around for a while both in 2wd and 4wd on unplowed roads and partially plowed roads. Then I found a big parking lot covered in snow to have some fun.

In two wheel drive I was able to spin both rear tires if I punched it. However, even abruptly getting on the throttle around a tight turn I wasn't able to rotate the rear. The VSC/TRAC system simply wouldn't allow me to rotate. This is both good and bad. It made my attempt at parking lot shenanigans look stupid. Even full throttle and full steering lock couldn't get the tail to rotate. On the plus side I felt very confident in 2wd with the locker. However, when it was as slick as it was I wouldn't be in 2wd normally anyways. When the truck was in 4wd it's handling characteristics were impeccable. It felt just like stock, only more capable. If I punched it hard on a slick surface I could feel both rears spinning very very briefly and then the torque would transfer to the front wheels and she would confidently accelerate forward. I climbed some very steep unplowed roads and not even for a second did she want to step out.

Finally, I ended up taking my family sledding on a local hill. My wife is terrified of driving in the snow so I wanted her to practice in the 4Runner as she had never driven a 4wd in the snow before. After doing some practice emergency stops in an empty lot we drove around some unplowed residential areas and then home on the sloppy main roads. Needless to say she felt soooo much more confident driving in the snow and felt incredibly comfortable in the 4Runner. I think this was really the ultimate test of the lockers drive ability and it passed with flying colors.
 
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Trevor, glad the locker is working out so well. And thanks for all the help with the trans cooler. Sorry about that mix up when I was leaving, felt like an idiot. LOL.
 
Nice meeting you Tommy! Don't worry about the mix up, I think it's pretty funny. Glad everyone's mods worked out. Look forward to seeing you wheel your truck next time we head out.
 
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a locker has really been on my mind. how hard was the install? i originally wanted to go with an e-locker but it seems like people that have the Aussie really don't mind not having a selectable locker and wouldn't trade their Aussie... do you agree?

its really important that i can do it myself and the e-locker retrofit just seems like a hassle... reading this really made me dig deeper for info on the Aussie.
 
The install wasn't very hard at all. Granted, I was just helping out someone who has played with diffs before, but I feel like I could do it myself next time around if I had the tools (dead blow, air tools). I've worked on cars a lot, but I've never had to bleed brakes or pull the rear axles. Now that I've been shown how to do it, it's really not hard. The most difficult part was figuring out how to reassemble the locker assembly with springs and that wasn't too hard. We dabbed the little metal springs with grease to get them to stand up freely and then sandwiched them between the locker assembly. Once that part was done you just put the diff back the way it was. If you marked the backlash adjusters before taking it apart you can set it right back the way it was.

I don't want to lump the Aussie locker in with other auto lockers because I don't have any experience with them, but the Aussie locker is soooo much more streetable on a daily driver than a lot of internet opinions suggest. I'm really glad I didn't spend over a grand for a selectable. If you drive reasonably (not ripping around every corner) it's nearly unnoticeable. However, if you get on it you'll put down two even stripes. I'll update this again once I get in the snow and offroad, but I don't think I'll be disappointed.
 
I ran the Aussie locker for 2 years, It worked great for me on the trail. About a month after installation, all the pins decided to break in half and rendered my locker permanently and continuously locked. Obviously this was a problem as my 4runner is a DD. I ran it that way for nearly 2 years, burning through 2 sets of tires in 40,000 miles. It since has been removed, new springs ordered, and sold. I am the only person I know of that this has happened to.

What weight of gear oil are you using? Most people I've talked to never had as good of street manners as you do. Even mine in my first month could still be felt on most corners at low speeds. Maybe your oil has something to do with it.
 
I don't want to lump the Aussie locker in with other auto lockers because I don't have any experience with them, but the Aussie locker is soooo much more streetable on a daily driver than a lot of internet opinions suggest.

This is exactly what I have been saying for the past couple years that I have had mine. Noticable for me tight low speed turns in a parking lot will get a little noise and drivetrain lash.
 
I ran the Aussie locker for 2 years, It worked great for me on the trail. About a month after installation, all the pins decided to break in half and rendered my locker permanently and continuously locked. Obviously this was a problem as my 4runner is a DD. I ran it that way for nearly 2 years, burning through 2 sets of tires in 40,000 miles. It since has been removed, new springs ordered, and sold. I am the only person I know of that this has happened to.

What weight of gear oil are you using? Most people I've talked to never had as good of street manners as you do. Even mine in my first month could still be felt on most corners at low speeds. Maybe your oil has something to do with it.

I'm using Valvoline 80w90 high performance gear oil. Stock weight obviously. Sorry to read about your malfunction. I've read lots and lots of reviews before making the purchase and I can't recall reading about too many failures.

I've also read of many others reporting exceptional street manners so it's not just me:

Here is one right off the bat, and there are tons of others
Aussie locker review - YotaTech Forums
 
This is exactly what I have been saying for the past couple years that I have had mine. Noticable for me tight low speed turns in a parking lot will get a little noise and drivetrain lash.

Yeah, you definitely can feel the drive line tighten up and the clicking is audible if you listen for it, but it's far from an annoyance or hindrance in performance. I also have an auto so that may account for some differences experienced by others as well as driving habits (I'm usually really mellow and have been good about moderating my throttle during low speed turns).
 
I installed mine as a "temporary" hold over until I could afford a regear and ARB. Two years later I am still happy as can be. My last set of tires went 60k and look to get similar from this set even though they are an unproven new tire. I still plan on doing a re-gear but now I am not in such a hurry or decided if I need to do the selectable.
 
how about getting on and off highways with the big round ramps? you gotta be accelerating and turning at the same time... any issues here?
 
how about getting on and off highways with the big round ramps? you gotta be accelerating and turning at the same time... any issues here?

On rare occassions now that the bushings in my link arms are completely gone I get some body roll issues as I let off the gas or get on the gas. I will say that before they were totally worn I did not have any issues and as I feel that after I replace my link arms or bushings it will go away again.

There is a ramp I use all the time that is posted 30mph and I take it regularly in the 40-50 mph range as the road it empties onto is a 50mph street. The ramp is a reducing radius and gets tighter at the top and only time I notice anything is if I have to lift, then I feel it disengage and get a little body roll action to the inside but if I get back on it and the locker engages then I get a little more body roll to the outside becasue the locker is wanting it to go straight. This is in a fully armored lifted 3rd gen with a large roof rack on top which effects handling anyways.

Big key is dont drive like a moron, take time to learn how your vehicle reacts with the new locker(or any other modification, lift, tires, armor etc) and enjoy .
 
how about getting on and off highways with the big round ramps? you gotta be accelerating and turning at the same time... any issues here?

I drive well within the speed limit because a. I'm not an ass b. I have no rear sway bar and a good bit of lift=body roll.

Because I drive reasonably I haven't had to change my driving habits at speed AT ALL. I drive the same way I always have and don't notice it's there. I'm sure if I was punching it through a turn it would lock up, but small application of throttle doesn't make it lock suddenly.

Before I got it, I thought as many do, that any application of throttle in a turn would make it lock and jump sideways. This couldn't be farther from the truth. I can apply mild throttle inputs driving around making normal 90 degree turns and it won't lock unless I get it on a bit more. You DO NOT have to be off the throttle completely going around a turn. Just give smooth, consistent, and mild input and it behaves like stock.
 
I have to admit I am tempted to do this. My only concern is how it would handle snow and ice. Especially on the highways since I regularly drive up into the mountains. Anyone have any experience, bad or good, with this?
 
I have to admit I am tempted to do this. My only concern is how it would handle snow and ice. Especially on the highways since I regularly drive up into the mountains. Anyone have any experience, bad or good, with this?

This guy talks about his experience in the snow and ice quite a bit:
Aussie locker review - YotaTech Forums

If we ever get any snow this winter I'll let you know what I think, but if things keep going like they have I won't see any snow this winter.
 
Ya I saw that. From his description about "the back end walking out" as not a big deal makes me question it a little. Also he has a 2nd gen with a stick and I have a 3rd with an auto. Not sure how this could effect the engagement.
 

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