Rear Diff Lock Options

Transmissions, Transfer Boxes, Axles, Drive Shafts
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biggles
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Rear Diff Lock Options

Post by biggles » 06 Aug 2017 11:46

I am starting this thread as a reference for other people going through the same process as me.

Replacing the OEM difflock at the rear. Not a simple task as there are not many options.

My question I cannot rearly answer on the web is:

Will the ARB work? I thought it would until I rear this from Pieter du Toit on my old patrol when he had it:
Couple a days later I found out it is not that easy to replace the rear diff lock with an ARB Locker - problem being the one side shaft is too long and needs to be cut - the other one is too short and there is no "right" size side shaft available in SA - It has to be imported from Australia. And to top it all - ARB does not have a diff lock for my car available in SA - and the soonest they might be able to help me is end November - this I was told in the beginning of October. And then we complain about the agents giving bad service or not having parts available - it happens everywhere. So back to Nissan AGAIN.
Is there a TJM difflock available for the rear diff of the patrol?

E-locker will not fit. This is from the suppliers.

Auto lockers on the rear is really not something I want to do. Or do I?
Last edited by biggles on 06 Aug 2017 15:35, edited 1 time in total.
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Re: Rear Diff Lock Opions

Post by SJC » 06 Aug 2017 13:10

I am not sure if there is really an auto locker for the rear diff available... but I might be wrong.
Lokka lockrite etc, only got a locker for the h233 diff.

It might not be so lekker having an auto locker in the rear diff, as it would constantly lock and disengage, even when driving 2 wheel drive on bitumen.


Will see if I can get more info on rear difflock options....

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Re: Rear Diff Lock Opions

Post by biggles » 06 Aug 2017 14:20

A bit more research indicates that an auto locker on the rear axle will be a bad idea.

Towing a heavy caravan up a twisty pass would likely mean that the autolocker will not dis-engage.
Accelerating from a junction turning iether way would mean the autolocker will not dis-engage. With supercharger singing I can get a satisfying semi-drift as it is... :rolling:

So TJM or ARB it is.
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Re: Rear Diff Lock Options

Post by hugejp » 06 Aug 2017 15:37

Would you not consider a 2nd hand Nissan unit?

An entire 4.8 rear axle could be had for around 10k.

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Re: Rear Diff Lock Options

Post by biggles » 06 Aug 2017 17:00

hugejp wrote:Would you not consider a 2nd hand Nissan unit?

An entire 4.8 rear axle could be had for around 10k.

:mytwocents:
Just sorta feels like going backwards. I think I need a solenoid too so more than just the axle.

After doing some research the Nissan unit seems to give a fair amount of issues.
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Re: Rear Diff Lock Options

Post by Peter Connan » 06 Aug 2017 19:11

I have seen several patrols with ARB lockers front and dear, so I am sure it is available.

Oom Mac had an auto-locker installed in his Prado. Perhaps have a word with him regarding his experience, but he often tows heavy trailers and did not once complain about it.

I also think he has ARB's in both axles on his current Patrol.

I can't see why an auto locker would not disengage under the conditions you describe. I have studied their design in some detail but have no personal experience though.

I would say your best option is to give Ronald Hairbottle of 4x4 Traction in Polokwane a call and discuss the options with him?
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Re: Rear Diff Lock Options

Post by SJC » 06 Aug 2017 20:30

Peter Connan wrote: I would say your best option is to give Ronald Hairbottle of 4x4 Traction in Polokwane a call and discuss the options with him?
Agree, I also did sent him a mail earlier today to see what he can recommend for the rear diff, will post here when he responds. (prob. tomorrow :think: ).

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Re: Rear Diff Lock Options

Post by hugejp » 06 Aug 2017 20:35

I agree!

Ronald knows his stuff...
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Re: Rear Diff Lock Options

Post by Tinus lotz » 06 Aug 2017 22:08

The 4.5 diff locker fits on 4.8 anton and errol repaired his one 4.8 with a 4.5 diff center

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Re: Rear Diff Lock Options

Post by offroadbiker » 07 Aug 2017 07:07

one day I will also have a rear diff lock............
Dirk
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