2010 RRS HD??? Rear locker

Humvette

Adventurer
Active rear e diff??? What does that mean? Will my rear diff look different than the one posted on the previous page? Maybe it has an internal carrier???

I did have the unlock icon on the LCD screen.
 

A.J.M

Explorer
Active diff is fancy blurb for locking diff.

However, now I've said that, someone else will come along and prove me wrong.. :D
 

Humvette

Adventurer
As I had the RRS in rock mode the tcase would lock and unlock??? Maybe the rear does the same thing?

How come I cannot see the big model on top of the diff???
 

unseenone

Explorer
ARB makes a kit for the front, and the rear open diff. British4x4outfitters in San Antonio is currently building four of them. They intend to sell them ready built, with new gears, bearings, etc. exchange. Give them a call if you are interested in them.
 

roverandom

Adventurer
I've been thinking lately about the idea of a small, say 1", body lift on an LR3. I understand it should be technically possible, but have not looked into the actual practicalities of it. Seems like somebody smarter than me would have already done this if it were easy...

It would be nice to have this option though. Would certainly help with getting a propper 33" tire under the rig and maybe still being able to roll if/when you get dumped on the bump stops.

Yeah, I've had a close look at a LR3 with the body off and I'm sure it's possible and I for one would love to see a body lift kit but seeing as you can squeeze a 32-33" tyre under a LR3 with a simple rod mod or coil spring conversion it would only be worthwhile if you wanted to run a 35"+ tyre.

To do this you would need to address the strength of the differentials and axle shafts. Also a new lower control arms and perhaps brackets to lower the diff's like you get on IFS pickup truck lift kits. Then you have the steering geometry.

This is not really all that radical or beyond the realm of possibility either but I doubt there is much of a market for the $$$ needed to develop a kit such as this.

These vehicles are too heavy, too luxurious, too expensive and sold in too few numbers to be seriously considered as a killer trail rig. Overlander and light wheeler? Certainly. But if a half decent LR3 alternative (New Defender?) reaches North America, expo and trail preped RRS/LR3-4's will be a thing of the past.

My 2c.
 

Mack73

Adventurer
Body Lift (or any real mechanical lift like air bag spacers) = bad news with the Air bags

It changes the geometry of the front a-arms and can cause the upper a-arm to contact and puncture the air bag.
 

proper4wd

Expedition Leader
A body lift would have zero effect on the suspension geometry. All of the suspension components are mounted to the frame and only to the frame, as seen below. There would also be no need for drop brackets for the front diff, etc.

30645d1327639081-suspention-fault-lr3-2007-tranny-transfer-case-air-tank-left-side-cut-away.jpg
 

Mack73

Adventurer
A body lift would have zero effect on the suspension geometry. All of the suspension components are mounted to the frame and only to the frame, as seen below. There would also be no need for drop brackets for the front diff, etc.

Yup you are right - my excuse is a 3 week old newborn and 4 hours of sleep :)

Body you would be fine except extending all the components (brake lines, steering shaft and who knows what wiring doesn't have enough extra slack).
 

perkj

Explorer
As I had the RRS in rock mode the tcase would lock and unlock??? Maybe the rear does the same thing?

Yes, the electronic rear diff will lock and unlock only as its needed. If you are looking at the screen with the car either just idling or driving on a surface that doesn't require the rear diff to be "locked", then the screen will show it as unlocked. The electronic locker isn't like a traditional locker, like the one ARB offers. with LR locker is all computer controlled will lock as the computer sees needed and the locking is progressive, meaning it won't "full lock" in every scenario....the computer with "lock" it enough just to get thru whatever it needs.
 

roverandom

Adventurer
A body lift would have zero effect on the suspension geometry. All of the suspension components are mounted to the frame and only to the frame, as seen below. There would also be no need for drop brackets for the front diff, etc.

30645d1327639081-suspention-fault-lr3-2007-tranny-transfer-case-air-tank-left-side-cut-away.jpg

Additional Modifications would need to be made for a 35"+ tyre.......unless you are talking about a really silly 5" body lift. I was assuming a 1-2" lift. There is not sufficient room to cycle the suspension and turn a proper big tyre with "just" a body lift.
 

proper4wd

Expedition Leader
Well, on the right model of LR3 (no rear A/C) you can fit a pretty meaty 33 with the johnson rod style lift. Add a 1" or 1.5" body lift plus some fender work and you are probably into 35s well enough. As pointed out, the strength of the drivetrain components remains to be seen though.
 

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