LSD, Not the drug either!!!!!!!!!

Submitted: Tuesday, Jul 06, 2004 at 10:21
ThreadID: 14414 Views:2117 Replies:5 FollowUps:8
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OK here goes. Being a curious sort of lad I thought I would find out more about my 1992 Jackaroo LSD. I thought having LSD was a good thing for offroad capabilities. Not as good as diff lockers but hey, it came with the vehicle.So after some initial searching I was quickly dissapointed about the lack of info I could find on a jackaroo LSD. Now I heard, read, was told to put a brick under front wheel jack up one back wheel and try to climb over brick. Putting safety concerns aside I thought "why not". Set it up and tried to climb a lousy house brick. Talk about dissapointed. I was going nowhere fast.

Turns out I may as well not have LSD as it doesn't do a darn thing to help me.

I went and talked to my mechanic Eddie. He put it on the hoist and confirmed my LSD is not so limited anymore.
Now apparently the clutch plates in this diff are worth $ 200.00 each and there might be as many as 12 of them.

Now my Questions.
1: Is the Jackaroo lsd diff the same as they are sticking in the Rodeo's.
2: Can I use a special Diff fluid to held the LSD work better.
3: If I get secondhand diff, will it be any better than what I have now.
4: Maybe I should accept my LSD for what it is and not worry about it.
5: can they be fixed with aftermarket parts and where could I find them.
6: Should I just stick in a difflock of some type in the front and not worry about the back.
7: Am I asking too many questions


Sparkie(IE not Y) ;-)

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Reply By: Rhubarb - Tuesday, Jul 06, 2004 at 10:37

Tuesday, Jul 06, 2004 at 10:37
Can't answer all your questions Sparkie, but given that your truck is now 14 years old I would say that your LSD has simply worn out.

If your worried about it and want to help your vechile in the traction department fit a diff locker, front or back - you'll find this much better than LSD anyway.
AnswerID: 66643

Follow Up By: Sparkie - Tuesday, Jul 06, 2004 at 13:50

Tuesday, Jul 06, 2004 at 13:50
14 years is a lot of time for a LSD to have to work I guess(230,000 kilometers)
I think I will save my money for a difflock for the back
Thanks for the reply

Sparkie(IE not Y) ;-)
FollowupID: 327409

Reply By: Member - Roachie SA- Tuesday, Jul 06, 2004 at 10:56

Tuesday, Jul 06, 2004 at 10:56

From what I know, all LSDs will wear out eventually. I can't see the value on spending $2400- (12 x $ 200-) on new plates for the existing diff....NO WAY!!!

If you can only afford one diff lock it should go in the back end. Note mine is in the front, but my LSD is very good....(if/when it stuffs up a 2nd air locker will be on my chrissy pressy list.)

My recommendation is to fit a ARB air locker, but others are also available cheaper, but not driver selectable.

Good luck
AnswerID: 66644

Follow Up By: Sparkie - Tuesday, Jul 06, 2004 at 13:59

Tuesday, Jul 06, 2004 at 13:59
I think ARB airlockers are too expensive and will try to find a detroit or something similar for the back. I have heard they make a clicking sound but I think it will be good peace of mind for when things get hairy.

I am only just starting my 4wd experience and dont think I should go all out for a vehicle I may not have as my ultimate 4WD.
A good snatchstrap may be my best friend, errr.... option.

Sparkie(IE not Y) ;-)
FollowupID: 327411

Follow Up By: Rosco - Bris. - Tuesday, Jul 06, 2004 at 21:13

Tuesday, Jul 06, 2004 at 21:13

Correct about the clicking noise ... more like CLICKING !!!

One of the blokes in our club has a Detroit Locker in the bum of his Hilux.
Makes a horrible noise and also makes his turning circle nearly as bad as the Fender, but he seems to be happy with it.

FollowupID: 327474

Reply By: Andrew - Tuesday, Jul 06, 2004 at 17:55

Tuesday, Jul 06, 2004 at 17:55
Sorry I can't help you with specifics on the Jackaroo.
I recommend you go and talk to a diff specialist.
If it is a clutch and shim pack setup you will not have to change all the plates unless they are worn out. Setting the stack height to get the correct preload may help in that case and that is just a shim change.
All LSD's wear it just depends on how hard you use them and how good the original was.
Setting up Datsuns (showing my age) for rallying the preload was two or three times normal but you would lose half that after a couple of events.

You need to remeber that LSD's also get some of their locking action from the difference in slip across the axle.

Lockers are certainly more effective in the bad stuff but LSD's can help in the less difficult terrain as well and lockers don't help on wet bitumen and can be a pain in twisty stuff. LSD's are also a bit easier on the driveline.

Detroit lockers can induce some interesting handling characteristics that you would need to get used to. They work well when you are used to them but can catch out the unwary. They hardly ever seem to wear out either.

Decide where and how you drive and pick your fix based on how much extra traction you need. The homework could save you a few dollars.
Good luck



AnswerID: 66702

Reply By: flashnick - Tuesday, Jul 06, 2004 at 22:51

Tuesday, Jul 06, 2004 at 22:51
Have you changed your LSD oil - lately???? I'd try some Penrite Limslip 95/140 in it first - then try the brick trick. I think you'll be surprised. Certainly cheaper than any other option.

Do a topic search in the archives for this product and subject.

Cheers Nick
AnswerID: 66761

Follow Up By: Savvas - Tuesday, Jul 06, 2004 at 23:18

Tuesday, Jul 06, 2004 at 23:18
Or Castrol LSX 85W/140 ... this one is specifically recommended for Jackaroo & Rodeo diffs.
FollowupID: 327502

Follow Up By: flashnick - Wednesday, Jul 07, 2004 at 00:12

Wednesday, Jul 07, 2004 at 00:12
I think you'll find the Penrite product to be the far best option - if the diff is worn and old he may be able to use the straight Limslip 140- normally only reccomended for Nissan Patrol diffs - if it doesnt get the diff working - nothing will and he will at least have his definitive answer - ie the diff is useless as an LSD - spend money on a locker! Most other LS oils in an old diff may not give such a conclusive result. Im seeing LS diffs with 300,000ks still working well. (with the right oils)

FollowupID: 327506

Follow Up By: Savvas - Wednesday, Jul 07, 2004 at 07:43

Wednesday, Jul 07, 2004 at 07:43
Bummer ... I just bought the Castrol one to do my rear diff. But then again my car is only upto 80000km.
FollowupID: 327519

Reply By: Sparkie - Wednesday, Jul 07, 2004 at 11:15

Wednesday, Jul 07, 2004 at 11:15
Thanks guys I will go out right now and get some.I will try the Penrite stuff

Sparkie(IE not Y) ;-)
AnswerID: 66794

Follow Up By: flashnick - Wednesday, Jul 07, 2004 at 13:28

Wednesday, Jul 07, 2004 at 13:28
Let us know how it goes,
You can check their website and see all reccommendations

FollowupID: 327556

Follow Up By: Sparkiepete - Thursday, Jul 08, 2004 at 07:21

Thursday, Jul 08, 2004 at 07:21
It made a difference but still not enought to get over that blasted brick.
In fifth gear at idle it stalled as I let the clutch out which means there is something there. But I have my Mechanic looking into the possibility it may be tightened? up. He owns a 85 Pajero he wants to try it on first and then he will know more.

Sparkie(IE not Y) ;-)
FollowupID: 327675

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