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Unread 04-06-2008, 05:37 PM   #1
airtraffic007
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Front locker vs. rear locker

I am looking to purchase a Detroit locker but only have enough to buy one. Is it better for rock crawling/trailing to get a locker in the front or the rear?

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Unread 04-06-2008, 05:49 PM   #2
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How about some more info, like the vehicle it is going in, are you running a lift, what size tires, axles, etc.
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Unread 04-06-2008, 05:54 PM   #3
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I say the rear......Check out this link, read through it and scroll down to headline ''which axle to lock first.''

Link- http://www.stu-offroad.com/misc/locker-1.htm
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Unread 04-06-2008, 05:55 PM   #4
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Quote:
Originally Posted by ajmorell View Post
How about some more info, like the vehicle it is going in, are you running a lift, what size tires, axles, etc.
That would help too...
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Unread 04-06-2008, 06:42 PM   #5
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Quote:
Originally Posted by airtraffic007 View Post
I am looking to purchase a Detroit locker but only have enough to buy one. Is it better for rock crawling/trailing to get a locker in the front or the rear?
if its trail only then lock the rear you break less or you could put the locker up front and just weld the rear. like all the others said more info is needed about your rig, jason.
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Unread 04-06-2008, 09:45 PM   #6
airtraffic007
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I've got a '01 Wrangler Sport...Dana 44 rear and 30 front. 4" suspension lift and 33x12.5 tires. Still have the factory gearing though...need to upgrade that too.
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Unread 04-07-2008, 09:43 AM   #7
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Well if you are planning on regearing, I'm not sure I would spend the money on a locker now unless you already have at least 3.73 gears from the factory. The reason I say this is that most lockers (at least full-case ones) have a carrier break (typically 3.54 down, and 3.73 up).

What I would probably do if you really want a locker is go with something like an Aussie, which isn't a full case locker and would work with any gear set and I would put it in the 44. The 44 will hold up to 33s better locked (although both should be fine) and if you ever have to engage 4wd on the road it will handle much better.
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Unread 04-07-2008, 10:24 AM   #8
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Not to Hi-jack, but how would an Aussie in the rear and an ARB in the front do?
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Unread 04-07-2008, 10:38 AM   #9
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I personally wouldn't put a lunchbox in the rear if you drive it on the road. Just my .02. ARB/Detroit in the rear and Aussie up front.
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Unread 04-07-2008, 10:55 AM   #10
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I've read Aussie up front when in 4wd and in snow on the road is a no no?
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Unread 04-07-2008, 12:28 PM   #11
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Originally Posted by element981 View Post
Not to Hi-jack, but how would an Aussie in the rear and an ARB in the front do?
Just fine.
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Unread 04-07-2008, 01:52 PM   #12
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I personally wouldn't put a lunchbox in the rear if you drive it on the road. Just my .02. ARB/Detroit in the rear and Aussie up front.
A Detroit functions in basically the same way a lunchbox does. I understand the argument for an ARB because it is selectable, but other than being a full case locker, a Detroit doesn't offer much upgrade over a lunchbox IMHO
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Unread 04-07-2008, 11:22 PM   #13
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"Well if you are planning on regearing, I'm not sure I would spend the money on a locker now unless you already have at least 3.73 gears from the factory. The reason I say this is that most lockers (at least full-case ones) have a carrier break (typically 3.54 down, and 3.73 up)."

What is a carrier break? Does this mean that regearing would be useless if I get a locker (I'd like to get 4:56 gears)? Just curious...
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Unread 04-08-2008, 06:23 AM   #14
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It depends on the current gears you have and what lockers you want to go with.
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Unread 04-08-2008, 08:53 AM   #15
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Quote:
Originally Posted by airtraffic007 View Post
What is a carrier break? Does this mean that regearing would be useless if I get a locker (I'd like to get 4:56 gears)? Just curious...
A "carrier break" refers to an axle using a different carrier/locker for different gear ratios.

The "carrier" is what the ring gear bolts to. Its the locker if you have a full case locker (ARB, Detroit, Ox, etc.).

Your D30 has a carrier break at 3.55/3.73 meaning that the axle uses the same carrier/locker for 3.73, 4.10, 4.56, or 4.88. 3.55 or anything numerically lower requires a different carrier/locker.

Your D44 has a carrier break at 3.73/3.92. So 3.92, 4.10, 4.27, 4.56, 4.88, etc. all use the same carrier/locker.

To add to the confusion, there are "thick gears" available for your D44. Thick gears allow you to use the numerically lower gear ratios (3.73, 3.55, 3.27, etc.) on the 3.92 and numerically higher carrier/locker.

Make sense?
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