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Old 09-22-2011, 01:18 PM   #1
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Which Locker????????

2005 TJ, 4.0l 6 speed, D44 in the rear and D30 up front. I would like to put lockers in. Probably the rear first then a little later in the front. I've been looking and really like the Aussie for the best bang for the buck. What are your thought? Also I thought that I read somewhere that you wouldn't want to put a locker in the front if it is turning all the time. I think that the D30 in this year is engaged all the time, am I right or wrong? What are your thoughts on the locker in the front?

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Old 09-22-2011, 01:33 PM   #2
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An Aussie in the front is a great mod. It is completely invisible when in 2WD, and only works when you engage 4WH/L. And even then it is silent. I have one in my D30 and plan on one rear, their quirkyness notwithstanding...

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Old 09-22-2011, 07:15 PM   #3
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Will you be driving in snow?
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Old 09-22-2011, 07:24 PM   #4
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your jeep is not fulltime 4wd no wrangler is.

if your driving in the snow, having an aussie in will make 4wd a little iffy, and make it hard to steer if it locks. not fun. its prob the second best with a no-slip being the top, but it is more expensive. I am dropping an aussie up front soon, and plan to just take it slow and easy this winter, 4wd only if the snow is deep enough to warrant it (6 inches or more) otherwise nice and slow in 2wd.
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Old 09-22-2011, 07:32 PM   #5
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An Aussie up front is a nice upgrade, as long as you realize what it's shortcomings are. I opted for selectable lockers (ARB) so that I am not limiting the full use of my Jeep in any situation. I paid dearly for the option too...

How do you use your Jeep offroad? Where in the country do you live? As docluie asked, do you plan to drive in a lot of snow?
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Old 09-22-2011, 07:33 PM   #6
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The Aussie and Lockright lockers are great choices for the front axle, they are very well behaved in 2wd. Neither is a good choce in the rear however for the same reason they are poorly behaved on the street when you're in 4x4. When in the rear, rear lockers are always receiving torque which keeps them locked up harder, hard enough that they don't unlock easily for turns. Only a couple automatic lockers are fairly well behaved when installed into the rear axle, one is the Detroit Locker and the other is the Powertrax No-Slip which is a lunchbox locker.

So if you want a rear locker, and I believe the first locker should go into the rear when the rear axle is not a Dana 35c, I'd go for either the Detroit Locker or Powertrax No-Slip lunchbox (cheaper) locker.

I run most of my trails with just my rear locker engaged.
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Old 09-22-2011, 07:37 PM   #7
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Quote:
Originally Posted by Jerry Bransford View Post
So if you want a rear locker, and I believe the first locker should go into the rear when the rear axle is not a Dana 35c, I'd go for either the Detroit Locker or Powertrax No-Slip lunchbox (cheaper) locker.

I run most of my trails with just my rear locker engaged.
Also, since you have the D44 rear axle, make sure you don't forget about the carrier break on that axle. If you want to regear later make sure you only have to buy one carrier.
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Old 09-22-2011, 11:02 PM   #8
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I live in Oklahoma not usually much snow but the last couple have been exceptions. Do I just put one in the rear diff. and not worry about the front. I like to go to Colorado and go trail riding nothing extreme buit, I do like to get in tight spots. The reason I mentioned the front axle always being engaged is that it doesn't always have power going to it from the t-case but it is always turning unlike the older wranglers with the vacuum lock in device that locks the front diff. in. With it always turning will that cause a problem with the locker?
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Old 09-22-2011, 11:04 PM   #9
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Ageless, what is the carrier break?
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Old 09-23-2011, 10:11 AM   #10
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Quote:
Originally Posted by cinnpass
Ageless, what is the carrier break?
A carrier break in a axle means there are two different size carriers that have to be used, depending on the desired gear set. I'll post the specific numbers later when I can get to a desktop. Some axles have a carrier break and some do not. My 8.8 doesn't so I can run all available gear ratios for my axle on the same carrier.
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Old 09-23-2011, 10:44 AM   #11
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The reason for the carrier break is because lower ratio gear sets (like 4.56, 4.88, etc.) have smaller diameter pinion gears than higher ratio gear sets like 3.07 or 3.73 have. With a smaller diameter pinion gear, the carrier has to position the ring gear closer to the pinion gear so the two gears can properly mesh together.

A high ratio carrier positions the ring gear further away from the pinion gear, a low ratio carrier positions the ring gear closer to the pinion gear. That is the difference between high and low ratio carriers, their dimensions are otherwise the same.
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Old 09-23-2011, 11:55 AM   #12
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Quote:
Originally Posted by Jerry Bransford View Post
The reason for the carrier break is because lower ratio gear sets (like 4.56, 4.88, etc.) have smaller diameter pinion gears than higher ratio gear sets like 3.07 or 3.73 have. With a smaller diameter pinion gear, the carrier has to position the ring gear closer to the pinion gear so the two gears can properly mesh together.

A high ratio carrier positions the ring gear further away from the pinion gear, a low ratio carrier positions the ring gear closer to the pinion gear. That is the difference between high and low ratio carriers, their dimensions are otherwise the same.
Thanks, Jerry, I was hoping you'd step back in and clean up my mess.

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