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Old 03-17-2012, 08:45 AM   #1
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Spartan locker install

Here's a step by step on how to install a spartan locker.



Knock the roll pin out, remove the crosspin and side gears



Install the springs into the thumb cups and drop into the retainer



Squeeze the thumb cup down flush with the retainer and push in the lock pin



Install side gears into carrier


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Old 03-17-2012, 08:49 AM   #2
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Install retainers into carrier





Pull lock pins and line up all teeth





Install new crosspin and rollpin



Reinstall carrier into axle


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Old 03-17-2012, 08:55 AM   #3
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You made that look sooo easy. Great write up..
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Old 03-17-2012, 08:57 AM   #4
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Thanks! Actually it was easy, about 30 minutes start to finish.
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Old 03-17-2012, 10:31 PM   #5
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Are they good lockers i have been looking into getting me a set. Are they worth it?
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Old 03-17-2012, 10:53 PM   #6
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I've never run one before personally so I can't say, but they assure me that it will handle what I am gonna put through it and for the money its worth a shot.
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Old 03-17-2012, 10:57 PM   #7
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Hey man let me know how you like it. I am prob pulling the trigger on an aussie soon but curious to see how you like the spartan.
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Old 03-17-2012, 11:00 PM   #8
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Well you know what its going in so its going to be a few months probably before I get to drive it....but when I do I will report back as to how it works. I plan on trying out a few 4 wheel burnouts so my neighbors dont forget what goes on down here hehe

From what I have seen the spartan looks tougher since the springs are incased in a plug and it goes into a machined hole, versus have a super long spring like the aussie does.
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Old 03-17-2012, 11:16 PM   #9
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Quote:
Originally Posted by Ibuildembig
Well you know what its going in so its going to be a few months probably before I get to drive it....but when I do I will report back as to how it works. I plan on trying out a few 4 wheel burnouts so my neighbors dont forget what goes on down here hehe

From what I have seen the spartan looks tougher since the springs are incased in a plug and it goes into a machined hole, versus have a super long spring like the aussie does.
Yeah good point. I might throw one in my 8.8 when I get it in, If I can stop spending money

I have been trying to look into the spartan/ aussie but I'm at a disadvantage because of limited personal experience. I guess I'll see.

Oh and 4 wheel burnouts sound spectacular
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Old 03-19-2012, 08:12 PM   #10
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Nice write up thanks for sharing!
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Old 03-24-2012, 02:26 PM   #11
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Did my spartan today but haven't reinstalled the carrier because it looks like an awful wide gap when the cross pin was put in. Could be that it's normal but can you give me an opinion ? Thanks

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Old 03-24-2012, 08:23 PM   #12
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Thats about the same as mine is
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Old 03-24-2012, 09:06 PM   #13
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I guess it was not a problem, put it all together and it works as advertised. It went together with no problems; nothing stuck, all bolts came right out, carrier popped out AND went back in. Almost scary how simple it was.
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Old 03-25-2012, 10:56 AM   #14
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Nice work, seems pretty basic subscribed to see results



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Old 03-25-2012, 05:53 PM   #15
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You make it seem simpler than everyone else... perfect guide!
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Old 03-25-2012, 06:03 PM   #16
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Started with no problems except a frozen drivers side rotor. Banged away with a rubber mallet and it came off, then pulled the axles.


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Took carrier out, I used a cardboard flat and put everything in the right place. At first the carrier seemed stuck like chuck.


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I put a shop rag on the ring and turned with the drive shaft and it pushed it right out..

I put the carrier in a bench vise and marked the ring. The ring bolts are reverse thread, that's pretty important to know before you crank on the bolts. The instructions from spartan are basic, they could be better detailed though.


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Everything is vacuum packed and well packaged, so I put it in.


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My only concern was the gap between the halves after installing the cross pin but this appears to be normal by all accounts.

The re-install of everything went smooth, and if you count my wrench time and clean up, it was just under 4 hours.


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I tested according to the instructions and it did separate and click, I installed the cover and used the lube locker gasket (worth the coin IMO) and filled with 85-140 like in the rear and the field test proved that slippery mud and other obstacles were much easier.


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On street driving I can't tell it's there. You may hear a little clicking in parking lots but you have to really listen for it. My out of pocket for the spartan, gear oil, lube locker gasket, gojo and a roll of shop rags was 296. I recommend it for your rig if you want a mod that increases the capability of your rig.

Thanks to Doch80 for the pm and the offer to text him if I had questions!
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Old 03-25-2012, 06:42 PM   #17
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Didn't mean to hijack, typed in wrong thread.
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Old 06-30-2012, 12:51 PM   #18
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Quote:
Originally Posted by Ibuildembig View Post
Here's a step by step on how to install a spartan locker.


NIce write up. Thanks. I was wondering, is there any way to do this without taking the carrier out? I have been wrenching for many years, but never done anything with diffs, other than fluid changes. If not, I will just have to buck up but wanted to ask. Thanks for your time.


Knock the roll pin out, remove the crosspin and side gears



Install the springs into the thumb cups and drop into the retainer



Squeeze the thumb cup down flush with the retainer and push in the lock pin



Install side gears into carrier

NIce write up. Thanks. I was wondering, is there any way to do this without taking the carrier out? I have been wrenching for many years, but never done anything with diffs, other than fluid changes. If not, I will just have to buck up but wanted to ask. Thanks for your time.
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Old 06-30-2012, 01:58 PM   #19
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NIce write up. Thanks. I was wondering, is there any way to do this without taking the carrier out? I have been wrenching for many years, but never done anything with diffs, other than fluid changes. If not, I will just have to buck up but wanted to ask. Thanks for your time.
The carrier has to come out. Not difficult though. If you can do brakes you can install a lunchbox locker.
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Old 06-30-2012, 11:49 PM   #20
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Thanks Nick. As I have done more brake jobs than I would like to admit, I will give it a go.
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Old 07-05-2012, 02:49 PM   #21
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Does the gear oil need to have a friction modifier in it like a LSD? I am fixin to install and want to have all I need on hand. Thanks y'all.
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Old 07-05-2012, 03:16 PM   #22
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nope, there's no clutches in it
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Old 07-05-2012, 04:25 PM   #23
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nope, there's no clutches in it

Thank you sir!
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Old 07-05-2012, 05:38 PM   #24
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This might be a dumb question but I'll shoot and see what falls...

Whats a locker, whats its purpose and where is it located? Is it for auto or man?
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Old 07-05-2012, 06:48 PM   #25
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This might be a dumb question but I'll shoot and see what falls...

Whats a locker, whats its purpose and where is it located? Is it for auto or man?
Locks the wheels so if one slips they both still turn at the same speed. Keeps the differential from slipping hence the name locker.
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Old 07-10-2012, 08:09 AM   #26
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I am running a spartan in my d35(yeah, I know...LOL). I has worked great for me on quite a few wheeling trips. I also DD it and it works great. Every now and then it will "pop" in the rear after turn but it still works great.

I havn't broken it yet or the d35 for that matter. Now I am only running a 32" tire and have a 4cyl. But since a few peoples have asked about how well it works I figured i'd input.

Great write up and it really is an easy install. I will run one in my 8.8 when that goes in the jeep and am wanting to get one for my d30 soon.
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Old 10-26-2012, 08:04 AM   #27
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Is it a bad idea to put a Spartan locker in a daily driver? Would it just be noisy, or would it cause problems? I am thinking about one in my Dana 30.
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Old 10-26-2012, 09:23 AM   #28
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Nah I haven't heard anyone complain about it.....a detroit will jar your teeth when it loads and unloads
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Old 10-26-2012, 10:00 AM   #29
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Nah I haven't heard anyone complain about it.....a detroit will jar your teeth when it loads and unloads
That's the sound of TRACTION.
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Old 10-26-2012, 10:04 AM   #30
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So besides some clicking when I drive around nothing will really change until I shift into 4wd when I will gain the benefits?

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