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Old 02-26-2012, 11:07 PM   #1
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Powertrax no-slip?

I am finally about to start doing some mods to my jeep and wonder if this is my best option for my differential. I am working on a budget and found the powers tax no-slip system for a Dana 30 with 27 spline open differential.... Note I don't know what a 27 spline even is but this is going for $470 on quadratec. Any suggestions will be helpful

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Old 02-28-2012, 11:10 AM   #2
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Take a look at Northridge4X4.com. Aussie lockers are a great buy. Is this your daily driver ? If so you wanna look at reviews on the auto lockers before you buy. They tend to be tricky.

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Old 02-28-2012, 11:17 AM   #3
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Quote:
Originally Posted by Bham-TJ
I am finally about to start doing some mods to my jeep and wonder if this is my best option for my differential. I am working on a budget and found the powers tax no-slip system for a Dana 30 with 27 spline open differential.... Note I don't know what a 27 spline even is but this is going for $470 on quadratec. Any suggestions will be helpful
The 27 spline means that your axle has 27 splines on the end where it goes into the differential.. They look like a gear but they extend about 3-4 inches along the end of the axle..
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Old 02-28-2012, 11:21 AM   #4
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Here you can see the splines. I've see 27 and 30 spline options for Dana 30.
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Old 02-28-2012, 02:18 PM   #5
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You have 27 spline axle shafts. Getting a 30 spline locker requires getting 30 spline shafts.

Also Q-tec is great for finding what your looking for but I find better prices else where. Grab the part number and throw it in a google product search. Amazon is usually the winner and you can normally get free shipping.

What locker you want in the front also needs to put into account where you live. If your bound to be using 4wd on the street in icy and snowy conditions believe it our not having open or better yet limited slip diffs are better than full lockers. As a front locker will make it very difficult to turn in these conditions. Having all your wheels turning at the same rate makes them want to keep going it a straight line. Getting a selectable locker in the front is ideal, as even while off-road the ability to turn it on AND off is more beneficial than an always on locker.

The rear locker doesn't matter nearly as much but will still cause some difficulty in steering. Though tire size and what axle is also a factor of if you can get one or upgrade the axle or replace the axle.

Will also point out that the no-slip locker is the more expensive locker lockright makes.

My last note is, if you get a lunchbox locker you should be able to do it yourself in the garage with minimal tools. If your getting a selectable or full carrier locker(i.e. detroit) you will have to get the gears re-setup and it's more cost effective to regear the axles at the same time.
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Old 02-28-2012, 04:19 PM   #6
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Quote:
Originally Posted by TheTJRod
You have 27 spline axle shafts. Getting a 30 spline locker requires getting 30 spline shafts.

Also Q-tec is great for finding what your looking for but I find better prices else where. Grab the part number and throw it in a google product search. Amazon is usually the winner and you can normally get free shipping.

What locker you want in the front also needs to put into account where you live. If your bound to be using 4wd on the street in icy and snowy conditions believe it our not having open or better yet limited slip diffs are better than full lockers. As a front locker will make it very difficult to turn in these conditions. Having all your wheels turning at the same rate makes them want to keep going it a straight line. Getting a selectable locker in the front is ideal, as even while off-road the ability to turn it on AND off is more beneficial than an always on locker.

The rear locker doesn't matter nearly as much but will still cause some difficulty in steering. Though tire size and what axle is also a factor of if you can get one or upgrade the axle or replace the axle.

Will also point out that the no-slip locker is the more expensive locker lockright makes.

My last note is, if you get a lunchbox locker you should be able to do it yourself in the garage with minimal tools. If your getting a selectable or full carrier locker(i.e. detroit) you will have to get the gears re-setup and it's more cost effective to regear the axles at the same time.
I fully agree.. Air or electric lockers are the best option. I have a LSD in my Subaru front and it definitely fights me here and there.
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Old 02-28-2012, 06:05 PM   #7
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Ok, wow that is a lot to take in. I guess maybe a better question is, I have around 1k from my annual bonus that I'm dedicating to my jeep.

I already have a 4 inch lift and currently have 33s. In y'alls opinion what is my next smartest step in the build? I bought the jeep back in September used. Its a 99 TJ and don't know the history of what has been done as far as re gearing or anything.

It's not my daily driver but more of a day off driver, some trips like down to the beach will be taken in it but it was purchased for off road use for sure. I plan on doing more mud and trails vs primarily rock usage once it's ready.
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Old 03-04-2012, 09:49 PM   #8
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So should I do a winch set up or a locker of some sort, for my first big purchase?
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Old 03-05-2012, 01:15 AM   #9
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Old 03-10-2012, 08:29 AM   #10
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heres the inside weak parts of the Powertrax lockrite locker this was only in about a month
that little tab is what locks the rear on the TJ ,for what ever reason it failed still not sure why .
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Old 03-10-2012, 09:11 AM   #11
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I would say buy a winch and save your money to regear(if you want to do that too) and do a selectable locker. I have LSD front and rear and I can get myself quite stuck with that, and have no way of self recovery. I wish I bought a winch before anything else and I still don't have one. Also, I feel that if you want cheap traction with keeping the rest of the axle stock, go with a lunchbox locker. If you want the best traction go with a selectable locker. There have been a few times where I really regretted getting lsd but overall I like it. It takes getting used to in snowy conditions but on dry pavement it drives normal.

How do you feel about the gearing you have during street driving? How about when you offroad? If you want to change that I would do it at the same time as adding a selectable locker, which like I said is max traction.
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Old 03-10-2012, 09:11 AM   #12
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Id get a front locker rather than a winch.
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Old 03-10-2012, 03:16 PM   #13
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Quote:
Originally Posted by IndyJeepMan View Post
Id get a front locker rather than a winch.
^agreed.

for most situations; unless you wheel alone or wheel really extreme terrain, a good long tow strap and a buddy will pull you out of most any situation.

Most of us rarely if ever need to use our winch, and those with front lockers need to winch even less.

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