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Old 01-02-2011, 09:21 PM   #1
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Front locker

Hey guys, I'm looking at a Spartan front locker for a D30. I do really light offroading and don't really plan to go crazy on my Wrangler. Is this a well made locker? I know it replaces the spider gears and that its claimed to be an easy install. How does it work? Will I have to activate it or does it activate itself when it senses sliping?

thanks.

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Old 01-02-2011, 09:24 PM   #2
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Id like some info on this as well.

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Old 01-02-2011, 09:30 PM   #3
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x3

except for D35
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Old 01-02-2011, 09:51 PM   #4
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Looks like a Richmond PowerTrax or an Aussie Locker. It is non-selectable or automatic. If you are on a high traction surface, i.e. the road, it will unlock for turns, on a low traction surface it will stay locked. I have one (Richmond), in the rear of my Jeep in the summer and it has pretty good road manners, but it has to come out for winter street driving. Otherwise it makes for a wild ride when both rears slip. If you plan on driving in a snowy area, DO NOT put one of these in the front as it will not steer corerctly. Go with a selectable locker instead. Any non-selectable locker WILL change your on road handling & control, especially in the front axle.

The installation is soooper easy! Takes about 30 minutes or less including removal & installation of the cover.
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Old 01-02-2011, 10:16 PM   #5
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I know what ya mean about driving in snow with a rear locker.
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Old 01-03-2011, 07:01 AM   #6
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If you live in an area where you will need 4 wheel drive to drive on roads due to snow, I would install a selectable locker in the front. Even a good LSD will cause understeer and plowing in the front end.
If you plan to only do "really light" offroading, why are you installing a locker in the front end? Adding a locker to the rear will greatly improve the performance of your Jeep. You will be amased at the difference a Detroit or selectable locker will make in the rear. My experience is that I have been able to go more places in 4x2 with a rear locker than I could in 4x4 with an open or LSD rear. Even a good LSD, like a True Trac will be a vast improvement. Spend the money on the rear end, IMO.
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Old 01-03-2011, 07:58 AM   #7
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Quote:
Originally Posted by Search And Destroy View Post
x3

except for D35
Don't waste your time locking a D35. It will break. I'm not one to exaggerate things like a lot will. It's just a fact. The axle can't take the weight.
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Old 01-03-2011, 08:42 AM   #8
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Don't waste your time locking a D35. It will break. I'm not one to exaggerate things like a lot will. It's just a fact. The axle can't take the weight.
I have had my D35 locked for years with no axle shaft breakage on 33's & 35's. I wheel it pretty good too!
I also know when to give my junk a break too. Drive it sensibly and you will not break it all up. The locker broke once, but the axles have been going strong.
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Old 01-03-2011, 09:43 AM   #9
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Originally Posted by LuvMyTJ View Post
I have had my D35 locked for years with no axle shaft breakage on 33's & 35's. I wheel it pretty good too!
I also know when to give my junk a break too. Drive it sensibly and you will not break it all up. The locker broke once, but the axles have been going strong.
Despite your saying it's ok, your locked Dana 35c's axle shafts are living on borrowed time. The above poster was dead-nuts on when he said the Dana 35c axle is not strong enough for a locker.

I have, literally, a couple hundred photos of broken Dana 35c axle shafts from clueless newbies locking their Dana 35c axles if you would like to see them. And many of them, like you, thought or said "I'll just take it easy and it won't be a problem".
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Old 01-03-2011, 10:08 AM   #10
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I am in the same situation after having upgraded to 4.56 gears. My next upgrade was going to be a electric locker in the rear. I was planning on adding stronger axle aat the same time. Will this solve the problem? It it still cheaper than upgrading to a whole new rear end.
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Old 01-03-2011, 10:13 AM   #11
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If your rear axle is a Dana 35c, then yes replacing the OE carbon steel 27 spline axle shafts with either hardened alloy 27 or 30 spline (like in a Super 35 kit) will make the axle worthy of being locked. When a locker has been installed, I would limit the tire size with 27 spline hardened alloy shafts to 33" and 35" with hardened alloy 30 spline shafts.
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Old 01-03-2011, 10:47 AM   #12
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I am running a Yukon Spartan in my D30. I am also running Nitro chromo shafts. If you install it yourself, you will really appreciate their design compared to other lunchbox style lockers out there.

Yes it works. I've beat on it hard. Been running it for over a year with no problem and love it.
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Old 01-03-2011, 10:52 AM   #13
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How does it perform in the snow?
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Old 01-03-2011, 10:53 AM   #14
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Let's just say I refuse to put it in four wheel drive. If I have to though, it is going *sloooooow*.
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Old 01-03-2011, 10:55 AM   #15
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Originally Posted by Jerry Bransford View Post
Despite your saying it's ok, your locked Dana 35c's axle shafts are living on borrowed time. The above poster was dead-nuts on when he said the Dana 35c axle is not strong enough for a locker.

I have, literally, a couple hundred photos of broken Dana 35c axle shafts from clueless newbies locking their Dana 35c axles if you would like to see them. And many of them, like you, thought or said "I'll just take it easy and it won't be a problem".
You sir are correct. I am in no way saying they aren't prone to breakage cause they certainly are. Is it OK to do, sure, is it risky, yup. They are definitely the weak link on my rig for sure. I was just saying that it is possible to do without breaking them all the time with careful driving. I carry extra shafts cause I know it WILL happen sooner or later. So far I have been lucky.
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Old 01-03-2011, 11:26 AM   #16
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Guess when the time comes I will probably just go with a Elocker on the front of mine.
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Old 01-03-2011, 12:16 PM   #17
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Quote:
Originally Posted by D51_06TJ View Post
If you live in an area where you will need 4 wheel drive to drive on roads due to snow, I would install a selectable locker in the front. D51
I agree 100%.

Quote:
Even a good LSD will cause understeer and plowing in the front end.
I haven't found this to be true with the gear driven TrueTracs, I have them installed front and rear, and have driven on snow and ice on the trails and on the streets. Perhaps it is the case with clutch based LSDs.
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Old 01-03-2011, 04:21 PM   #18
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How does it perform in the snow?

I don't understand why everyone hates the auto lockers in the snow?? I have a richmond no-slip and it is fine in the snow. We had about 7-8 inches a few weeks ago and i spent the entire day playing in it. The Jeep will under steer if you mash the gas in a turn, but if you drive normally there isn't any under steer at all. And IF it does under steer, you just back off the gas and like magic, it is gone.... And in terms of off-road ability, I have found that the front locker works great for added traction.
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Old 01-03-2011, 07:17 PM   #19
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Aussie Locker front, hands down...

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Old 01-03-2011, 09:03 PM   #20
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Nice Video
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Old 01-03-2011, 10:27 PM   #21
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Jerry, should i stay away from a rear locker even if it'll be used for mudding and other light random offroading and im running 31's? is it really that weak?
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Old 01-03-2011, 10:36 PM   #22
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Originally Posted by TJ Wrangler View Post
Hey guys, I'm looking at a Spartan front locker for a D30. I do really light offroading and don't really plan to go crazy on my Wrangler. Is this a well made locker? I know it replaces the spider gears and that its claimed to be an easy install. How does it work? Will I have to activate it or does it activate itself when it senses sliping?

thanks.
if you're only doing light off-roading and don't plan on going crazy you probably don't need a locker at all. you might be surprised to see where open/open can get you. But if you're looking for some extra confidence without loosing the stock driveability, you should look at Detroit TrueTrac's. While they are full case replacements, they'll serve you well in all weather & even off-road.
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Old 01-03-2011, 10:36 PM   #23
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Jerry, should i stay away from a rear locker even if it'll be used for mudding and other light random offroading and im running 31's? is it really that weak?
I wouldn't install a locker into a stock Dana 35c even if the stars, earth, moon, and mars were all in alignment. Not for mud, not for sand, not for anything, Sam-I-am.

Even mud has stuff buried in it... earth, dirt, rocks, that can grab a spinning tire or cause sudden traction that can snap a locked D35c's axle shaft quicker than you can say howdy.

Here's a nice website to check out with nothing but Dana 35c axles being the focus of a lot of great photos... Another broken Jeep Dana 35c Rear-End.

Upgrade your Dana 35c with either of Superior Axle's two upgrade kits, their c-clip eliminator kit or their Super 35 kit, and all my objections to a locked Dana 35c axle running 33" up to a 35" tire go right up in smoke.
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Old 01-04-2011, 12:56 AM   #24
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Lots of fun pics on that site Jerry Im suprised how many of them are running big tires on those axles. Apparently they didn't hear your D35 sermon.

This one is paticularly sweet:

http://www.billhughes.com/dana35c/IMAG0045.JPG

Redneck ingenuity at its best!
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Old 01-04-2011, 01:00 AM   #25
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Lots of fun pics on that site Jerry Im suprised how many of them are running big tires on those axles. Apparently they didn't hear your D35 sermon.

This one is paticularly sweet:

http://www.billhughes.com/dana35c/IMAG0045.JPG

Redneck ingenuity at its best!
Somebody has found a use for side steps!
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Old 01-04-2011, 01:02 AM   #26
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I had to do a similar thing for a guy I rescued off the trail with his busted D35c. Old pic but that's me after having secured a Hi-Lift to a guy's Jeep with straps to hold his wheel in place so he could get back to camp. He was not a happy camper that day.
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Old 01-04-2011, 08:59 AM   #27
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I have a d35 in my 99 and many years ago decided to put in a locker. So I put in an OX locker and a Super 35 kit. I spent a fortune on it and have not had a problem, BUT, if I had it to do over again I would have swapped it with an 8.8 and put the locker in it at the start. Probably would have been cheaper too. Bottom line...it's still a d35 and when I put in a V8 it will have to go.
BTW I have a Powertrax no slip in the front and love it. No snow in south Texas.
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Old 01-05-2011, 05:54 PM   #28
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I wouldn't install a locker into a stock Dana 35c even if the stars, earth, moon, and mars were all in alignment. Not for mud, not for sand, not for anything, Sam-I-am.

Even mud has stuff buried in it... earth, dirt, rocks, that can grab a spinning tire or cause sudden traction that can snap a locked D35c's axle shaft quicker than you can say howdy.
While I have great respect for you and your wealth of knowledge, I have run a locker in my D35 for years with 33's with zero issues. I agree they are weak axles, but not as bad as you are making out. A broken axle has a little to do with the operator also.
I have a few old shafts around, so until I start breaking them, and run out, my locked D35 works just fine.
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Old 01-06-2011, 09:48 AM   #29
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I've had my eye on this one for a while. Has anyone tried it? It states that you do not have to reset the ring and pinion after install.

PowerTrax -0430-2700 - POWERTRAX® No-Slip Traction System for 72-07 Jeep® Vehicles with 27 Spline Dana 30 Open Differential Axle - Quadratec
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Old 01-06-2011, 10:06 AM   #30
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I have the no-slip in my D30. It works great. Excellent traction and easy to install. You don't have to reset the ring and pinion, but just make sure you install the carrier caps in the same location as they came out. For installation, (basically) all you do is pull the axles, take out the carrier, remove the ring gear, install the locker in the carrier after removing the spider gears and pin, and re-install everything. Of course there are other things to do here, but that is the basic gist of it.

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