Rear Locker

[ZR1Gerhardt]

Just to confirm. No one makes a rear locker for the LR4?

I see the front one available by ARB, but that is all I can find.

Scott

 

[BikePilot]

I believe that is correct. I suspect a person could use oem hardware and rig a way to manually control it, but haven't tried this (and realistically probably won't as for my uses the traction co tntr gets the job done just fine)

 

[ZR1Gerhardt]

Thanks for the reply. I looked everywhere for several days and found nothing for the rear.

 

[ryanjl]

ARB made one for the LR3. Not sure how much work it would take to make it work on the LR4.

There's a guy with a thread on the expeditionportal forum who was trying to retrofit an OEM locking differential to his LR4, but he hasn't posted in it since April.

https://www.expeditionportal.com/forum/threads/2012-lr4-overland-project-build-journal-blog.192622/

 

[RobRover88]

I've tried to talk Harrop Engineering in Australia into making their brilliant rear locker for the D4 but
no luck. It seems D4's diff is too small for their E-Locker & they're not prepared to redesign a smaller
unit. I guess cost is the major factor & they think the demand would not be there for such a unit.
I'm assured by "experts in everything LR" that it is impossible to retrofit the OE factory diff lock as it
has to be programmed into the terrain system at time of manufacture. Anyone trying do do so will
basically disable the terrain control system.
With good A/T tyres & proper use of terrain system the D4 can do most everything a rear diff lock vehicle can do.

 

[Quijote]

I can understand that few customers would need a locker and it is added complexity and cost, but really, for the $75- the option cost on a car this expensive it was crazy not to order it. The 5th wheel and tire alone paid for the $750. I'm glad I ordered it on mine, and as I mentioned before, it does get used more often than one would think. Not to say it is needed all those times, but even just hard acceleration on asphalt on a dry warm day will trigger it to come on.

 

[RobRover88]

Yes, I agree, but I bought mine new in December 2014 from dealer stock. I saved AUD$12,000 off list but it didn't have the rear diff lock. I would have had to wait 3 months & pay full list to get it.
Here in Oz they're all diesels, brilliant economy & massive torque & long range, but they don't burn up the asphalt on takeoff!!

 

[iSurfvilano]

Read this...Talks all about a front and rear locker from ARB

https://expeditionportal.com/land-rover-lr4-part-3-overland-journal/

 

[RobRover88]

Yeah, an interesting piece on Expeditionportal.com & it confirms what ARB (based in my home town of Melbourne) have told me in the past - the LR4 diff housing is too small for the air-locker & at the moment they are not working on re-engineering their unit to fit. Same story as "the even better than ARB"
Harrop E-Locker.
I'd only fit the ARB front locker IF I can eventually get a rear locker. A front locker alone can not do the job when a rear locker is seriously required - weight transferring rearwards on a tough climb.
I'm sure some engineering genius will eventually design one for the later D4's as more & more offroad enthusiasts will demand a unit as the D4 becomes more affordable second hand.
I note with interest that in one of the photos in that piece it appears that it is a Kaymar rear bar with swing wheel carrier that is fitted, not the brand as mentioned as being on order in a previous post.
I've just had a Kaymar unit fitted to allow fitting of a Brown Davis 110 litre aux. tank underneath. Both
units are brilliantly engineered & also manufactured in my home town.
A bit of trivia regarding ARB - back in the mid-1980's I worked for a bank & the branch manager (against Head Office orders!!) provided the founder of ARB (Andrew Robert Brown) with finance that kept the-then
tiny ailing business out of bankruptcy & funded an expansion that continues today worldwide. I'm glad I played a tiny part in ARB's success. Their products are always beautifully engineered. Unfortunately, they
procrastinated far too long in a redesign of the D4 - mid-2014 update bullbar, which meant in desperation I bought the just-updated Opposite Lock steel bullbar . No regrets with that though. Both brands work well on kangaroos!!

 

[iSurfvilano]

Yeah, an interesting piece on Expeditionportal.com & it confirms what ARB (based in my home town of Melbourne) have told me in the past - the LR4 diff housing is too small for the air-locker & at the moment they are not working on re-engineering their unit to fit. Same story as "the even better than ARB"
Harrop E-Locker.
I'd only fit the ARB front locker IF I can eventually get a rear locker. A front locker alone can not do the job when a rear locker is seriously required - weight transferring rearwards on a tough climb.
I'm sure some engineering genius will eventually design one for the later D4's as more & more offroad enthusiasts will demand a unit as the D4 becomes more affordable second hand.
I note with interest that in one of the photos in that piece it appears that it is a Kaymar rear bar with swing wheel carrier that is fitted, not the brand as mentioned as being on order in a previous post.
I've just had a Kaymar unit fitted to allow fitting of a Brown Davis 110 litre aux. tank underneath. Both
units are brilliantly engineered & also manufactured in my home town.
A bit of trivia regarding ARB - back in the mid-1980's I worked for a bank & the branch manager (against Head Office orders!!) provided the founder of ARB (Andrew Robert Brown) with finance that kept the-then
tiny ailing business out of bankruptcy & funded an expansion that continues today worldwide. I'm glad I played a tiny part in ARB's success. Their products are always beautifully engineered. Unfortunately, they
procrastinated far too long in a redesign of the D4 - mid-2014 update bullbar, which meant in desperation I bought the just-updated Opposite Lock steel bullbar . No regrets with that though. Both brands work well on kangaroos!!

I'd love to see a pic of your rig with that bull bar