Diff locks

Submitted: Saturday, Jun 21, 2003 at 00:57
ThreadID: 5573 Views:2889 Replies:9 FollowUps:2
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I want to buy either a Lokka or a Lockright for the front diff of my HJ47 cruiser, does anyone know if I can buy em on line. I live in Mt Isa.
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Reply By: ray91 - Saturday, Jun 21, 2003 at 01:24

Saturday, Jun 21, 2003 at 01:24
try www.4wdsystems.com.au $646 They are both the same locker ,Ray
AnswerID: 23115

Reply By: Steve from Armidale - Saturday, Jun 21, 2003 at 09:10

Saturday, Jun 21, 2003 at 09:10
Got my lockright for the front of the troopy from 4wd systems. I've bought lots of stuff from there and could not praise them highly enough. They ship within a couple of days if the items are in stock.

I ended up getting a diff specialist in Armidale to fit it (you'll have one in the Isa for sure) as it is a mongrel of a jobs for mechanically challenged people like me to pop the axles out of the front diff.

Also, the clearances in the manual are CRITICAL. All the bangs and clunks you hear about are generally people who have fitted there own and not worried about the clearances.

You will notice a slight increase in steering effort but nothing unpleasant for power steering (4wd systems do not recommend them for non power steer vehicles). I wouldn't be without it now, and when the LSD gives out in the back (generally 100,000 kms for Toyota) there will be one going in the back!!!!

Hope this helps
AnswerID: 23124

Reply By: Janset - Saturday, Jun 21, 2003 at 13:01

Saturday, Jun 21, 2003 at 13:01
Hi Paul.

I have gone down this path with my troopie at the cost of ignorance thinking that I would get it cheaper then another type of diff locker.

I had an Detroit Soft Locker installed into the front diff. I found this diff lock to be just the 'ants pants' EXCEPT in mud and loose beach sand (in W.A. we have a lot of both) where it was a HUGH handicap as it would either bog me or give me little or no steering.

Just as a short note here. When the diff is in the locked up mode steering is very effected, power steering or not (which I have). To over come this problem I had to ease my foot off the pedal and the diff would sense the difference in the rotation of the two front wheels and one axle would cam out to allow for the turn. When back in a straight line the wheels would again lock up and I could just about drive up a brick wall :-)).

The problem: In mud there is not enough drag to allow for this camming out, hence effected or no steering at all.

In beach sand, if I took my foot off the pedal, I stopped!

If I tried to turn in the beach sands without easing the pedal as required, one wheel would turn normally and the other would act a huge bulldozer pushing the sand in front of it until I stalled. Equally as bad, 99% of all tracks that I have come across leaving the beach have either an sharp left or right turn halfway up them. If I did not ease the pedal, I went straight on into the bush, if I eased off I stalled halfway around the bend.

If for any reason I stopped in loose sand without reversing back onto my track marks I would get bogged when I next moved off because both the front wheels would bite in instead of walking out along the sand (Yes, I do let my tyres down in loose sand, and yes I do move off gently, and yes I do have enough power)

Lastly, again in beach sand, when I tried to follow in the tracks of vehicles in front of me, I would wallow around like a beached whale, as the tracks ALWAYS weave about even if slightly, and my truck tried to go straight on. I had my heart in my mouth a number of time when it lurched violently....Perhaps I may have been going a bit fast also, but then do you want to be left miles behind your convoy?

This presented so much problem to me that I forked out extra cash and traded my front diff in for a Detroit True Track LSD.......an excellent investment, no more of the previous problems and I still have very good traction!

I have since installed an ARB air locked into the rear diff with which I am very pleased.

Knowing what I know now I would have saved a bit more money and maybe it may have taken a bit longer but I would have installed an ARB air locker also into the front diff. That way I have complete control over my machine.

A very stressful and costly exercise on my behalf, because between the 2 front diffs I had the money for an ARB conversion.

How does it go? A fool and his money..........

Give it some very serious though before YOU part with your money.

AnswerID: 23143

Follow Up By: Member - DOZER- Saturday, Jun 21, 2003 at 19:19

Saturday, Jun 21, 2003 at 19:19
I agree with Paul, if you want a locker, get one you can have 100% on or off, as there are times when you want to be in 4wd and turn the front wheels left or right. To do that you need to be in 2wd with a front locka, and if you change from backing off to powering in a turn, you will need power steering to keep the wheels turned....
Go an ARB, front or back doesnt matter.
Both is better.
Andrewwheredayathinkwer mike?
FollowupID: 15345

Reply By: Paul - Saturday, Jun 21, 2003 at 21:58

Saturday, Jun 21, 2003 at 21:58
Thank you all for your replies.
There isn't a lot of mud or loose sand up here mainly loose dry gravelly slopes and large boulders. It rarely rains & my biggest worry is to get stuck out in the desert somewhere. Perhaps I'd be better of putting the Lokka in the rear rather than the front as most times it is the clearance the 4x4 has to offer rather than the extra drive, is the steering still problematical with the auto diff lock in the rear? The $1800 for the ARB really bugs me as well as the thought of having to rig up a compressor (I'm a DIYer). Also the ARB is nearly half the cost of what I paid for my old truck which as soon as I sort the wiring and the handbrake out will be on the road. Thanks again, Paul.
AnswerID: 23166

Follow Up By: Janset - Sunday, Jun 22, 2003 at 15:08

Sunday, Jun 22, 2003 at 15:08
Hi again Paul.

The terrain that you mentioned sounds just right for an auto locker. As I said, other than in loose sand and mud, I could just about drive up a brick wall.

If you do go down the path of auto lockers then I would tend to go the rears wheels. I have not heard any bad or negative reports on auto lockers in the rear during my 14 years of 4WDing, club and inter club events. An added bonus with it being in the rear is when climbing uphill the weight is transferred to the rear wheels where you should have the best traction.

Front axle wheel spin was another small problem I had with the Auto locker that I forgot to mention when going up a steep gravel/stony slope. But I could live with that.

FollowupID: 15407

Reply By: Dion - Sunday, Jun 22, 2003 at 11:41

Sunday, Jun 22, 2003 at 11:41
I have just discovered that TJM are no longer supplying Lock-Rites, or that could have been their way of saying we don't have one to fit the front end of your RA Rodeo yet.
So for auto (Un)lockers, that leaves the 4WD Systems Lokka and the Detroit variants.


AnswerID: 23193

Reply By: Paul - Sunday, Jun 22, 2003 at 22:31

Sunday, Jun 22, 2003 at 22:31
Yes I think the auto Lokka would be the right choice for me, the manager at TJM up here also told me that they didn't sell Lock Rights anymore and added that at any rate that type of diff lock would break the diff case on my model vehicle. I took this claim with a grain of salt seeing he had none to sell, and such an occurrence wouldn't be the end of the world anyway.
Thanks again, Paul
AnswerID: 23248

Reply By: Member - Royce- Monday, Jun 23, 2003 at 00:42

Monday, Jun 23, 2003 at 00:42
I've got them in the back of the Supa Trupa. They're great!Royce www.funshow.com.au
AnswerID: 23255

Reply By: Allyn (Pilbara) - Monday, Jun 23, 2003 at 01:00

Monday, Jun 23, 2003 at 01:00
Front & Rear in my 80 series.
No problems - AT ALL !!!
AnswerID: 23257

Reply By: Peter from Rockingham 4wd Club Inc. - Friday, Jul 11, 2003 at 21:40

Friday, Jul 11, 2003 at 21:40
there is wide range of lockers out there for a wide range of terrains. My personnel choice is the Air Locker. I would like to be in control of when it comes on and off. I dont think i need to say much more about the auto lockers as there has been a lot of comment on them. I would steer clear of them.

AnswerID: 24736

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