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Range rover classic rear suspension, what have you done.

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rusty316

Posts: 12

Joined: Mon Jul 26, 2010 5:53 pm

Post Mon Jul 02, 2012 1:43 pm

Range rover classic rear suspension, what have you done.

trying to improve flex in the rear of the rangie, wondering what other people have done.

looking at the moment at rose jointed rear trailing arms, already have the cranked arms tho the bushes still look to be preventing a bit of travel.

however, before i do that, wanted to know what people have done the the upper arms is anything and the shock absored looking thing, can that just be removed? or is that somehow controling diff angle?

Image

also, spring locators? i have just put in the terrafrima locators that are meant to catch the spring, however they look like they will catch on the ring 3rd from the top which will be a bit of a fail. will test it out once the car is moving but keen to see what others have done.
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GRIMACE

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Post Tue Jul 03, 2012 11:41 am

Re: Range rover classic rear suspension, what have you done.

How much flex are you chasing?

If you have lifted the vehicle remove the self levelling unit all together. Chances of it actually working these days is very slim anyway.

IMHO seeing as you already have cranked arms, you can get enough flex simply by installing some longer shocks.
I don't think rose jointing the arms will give much benefit if your still using the standard a frame ball joint.
The ball joint will max out 14" travel shocks before it reaches its limits and you can achieve this with cranked arms (with standard bushes) and longer shocks (raised shock mounts on the chassis).

You might chew threw bushes at an alarming rate thou. I don't have much feedback on that as I havn't wheeled my POS with the above setup in almost three years :cry:

Lastly I think its more important to concentrate on the front to get even flex, too many people loosen up the rear and forget about the front, thus mimicking the flex of a nissan patrol :roll:
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AK-ROVER

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Joined: Wed Feb 22, 2012 1:25 pm

Post Thu Jul 05, 2012 12:56 pm

Re: Range rover classic rear suspension, what have you done.

So in other words for what you are doing, bugger it off as its not connected anyway.
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V.W.Dave

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Post Sun Jul 08, 2012 10:38 pm

Re: Range rover classic rear suspension, what have you done.

Image
Image
Image

Mate this is my old 96 Disco. that is tucking 265 75 16s
Had no sway bars. 2" lifted Flexy springs from england. 2" longer then standard KONI shocks and make sure you keep rubber bushings on both ends of your trailing arms.
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GRIMACE

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Post Tue Jul 10, 2012 3:00 pm

Re: Range rover classic rear suspension, what have you done.

wow, that's almost as booty fab as my rangie!

I am impressed :armsup:


EDIT: on second thoughts that is actually more booty fab then my junk!
random cut guards, springs out of their seats.... hilux's rule on the back window..
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rusty316

Posts: 12

Joined: Mon Jul 26, 2010 5:53 pm

Post Tue Jul 10, 2012 3:20 pm

Re: Range rover classic rear suspension, what have you done.

cheers for the info Grimace.

disconnected the auto lever thingo over the weekend. picked up probably 2 inches of drop when both wheels are suspended so rather happy with that.

what have you done up the front?

i have the same 5+ inch shocks at the front as i do the rear and the raised shock mounts (and extended brake lines) the front drive shaft appears to bind up on the angle its at, at the moment. have seen the double cardon joint shafts tho i fear i dont have the room for them with the t400 box conversion i have done, drive shaft is mighty close to the sump as it is.
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V.W.Dave

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Post Thu Jul 12, 2012 2:08 am

Re: Range rover classic rear suspension, what have you done.

GRIMACE wrote:wow, that's almost as booty fab as my rangie!
I am impressed :armsup:
EDIT: on second thoughts that is actually more booty fab then my junk!
random cut guards, springs out of their seats.... hilux's rule on the back window..


I am not joking when I say "I used this thing to bulldoze and make tracks" I fixed the springs that weekend after that trip by using hose clamps on top and removing the lower retainer :armsup:
I cut those gaurds that morning using the only thing I had. A 9" with a thick ass grinding disk.
Image
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alexcliffo

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Location: Bowen Mountain

Post Tue Jul 17, 2012 8:32 pm

Re: Range rover classic rear suspension, what have you done.

Hey Dave, our car had one of these jobbies done to the a-arm using a Johnnie joint. The axle mount will need to be customised to accept the joint though.

Image

If you want some suspension for that booty fab Disco we have a long travel kit we need to get rid of for cheap.
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Bored a lot

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Post Wed Aug 15, 2012 12:25 am

Re: Range rover classic rear suspension, what have you done.

In my last range I ran 3" rears an cruiser big bore shocksin the front and in the rear 5" springs with pro comp 32" shocks had insane levels of flex tho u have to have dislocating cones as they can an will pop out. I learnt that the hard way

Removing the self levelling arm helps a lot for spring drop also as it will max out before yours suspension does
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GRIMACE

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Post Wed Aug 15, 2012 6:21 am

Re: Range rover classic rear suspension, what have you done.

Bored a lot wrote:In my last range I ran 3" rears an cruiser big bore shocksin the front and in the rear 5" springs with pro comp 32" shocks had insane levels of flex tho u have to have dislocating cones as they can an will pop out. I learnt that the hard way

Removing the self levelling arm helps a lot for spring drop also as it will max out before yours suspension does


Similar set up to mine (height wise & shock lengths), only I highly recommend retaining the springs both top and bottom, front and rear.

I have found that cranked radius arms and rear links are a great way to minimize the stresses placed at the lower link chassis bushes.

The front radius arm bushes at the differential end are the limiting factor. Castor correction bushes are even worse for flex IMHO. If you can source some Haultech holey bushes they improve flex, even more so when they flog out :)

Luv
Grimace
XOXO
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V.W.Dave

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Post Wed Aug 29, 2012 1:40 am

Re: Range rover classic rear suspension, what have you done.

alexcliffo wrote:Hey Dave, our car had one of these jobbies done to the a-arm using a Johnnie joint. The axle mount will need to be customised to accept the joint though.

Image

If you want some suspension for that booty fab Disco we have a long travel kit we need to get rid of for cheap.


How cheap is cheap???? I am just starting to do my diff convertion so i am very interested????
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Rampt CUstoms 4x4

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Location: newcastle

Post Thu Nov 01, 2012 2:04 am

Re: Range rover classic rear suspension, what have you done.

Image

this is my daily's current set up. front end remains completely untouched.
set up is a prototype top coil retainer system, with upgraded lower retainers, and a prototype long arm kit. currently still running stock standard shock mounts.
long arm kit uses original mounts on the diff, with new custom mounts on the chassis using GQ lower control arm bushes.
with the rear coils fully retained, the stability of the truck off road has gone up ten fold. the suspension input threw the car is amazing and the added advantage of the front end is now being pushed around a bit making it work better.
the entire suspension set up is going to be completely over hauled, with the hopeful results of serious wheel travel for a daily driver. this is basically stage 1.

Image
rim on the rear on full up travel will get around 4-5" near the rear guards, so it tucks harder then it drops at the moment.
the front end is purposely limited on its drop due to the fact the brake lines are at their limit. (i'll be honest, i fluked the shock length to do so. lol)

Image
please excuse my quick fix bump stops. lack of time caused the dodgyness.
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GRIMACE

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Location: Bum drilling with my buddy Ray!

Post Thu Nov 01, 2012 9:42 am

Re: Range rover classic rear suspension, what have you done.

You might want to modify the rear brake line as well.
Easy fix is to bend the bracket at the diff so it's flat, and refit the t-piece pointing vertical.
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Rampt CUstoms 4x4

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Joined: Thu Nov 01, 2012 1:12 am

Location: newcastle

Post Thu Nov 01, 2012 11:30 pm

Re: Range rover classic rear suspension, what have you done.

bracket is just un done off the diff at the moment so no dramas there. ;)
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rusty316

Posts: 12

Joined: Mon Jul 26, 2010 5:53 pm

Post Tue Jan 01, 2013 3:59 pm

Re: Range rover classic rear suspension, what have you done.

thanks for the reply's guys.

rampt, do you find having the spring fixed at both ends restricks travel in the rear end?

cheers again.

Ross
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stuee

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Location: Perth, WA

Post Wed Jan 09, 2013 11:02 am

Re: Range rover classic rear suspension, what have you done.

Ross,

Have a read of these (try reading between all the e-tough and crap):
http://www.pirate4x4.com/forum/land-rov ... stion.html
http://www.aulro.com/afvb/technical-cha ... ain-2.html

Some info in them but you want the articulation balanced front to rear basically. My preference would be retained as with the axle dislocated you get very little usable down pressure on the dislocated wheel (just half the weight of the axle and the wheel and tyre). By having a balanced set-up front to rear you are giving each wheel as best chance you can of having equal down pressure and traction. The rears on rovers are very easy to get more flex out of but the fronts not so much.

Just before I sold my disco I had the suspension stuff 2" flexi springs and removed the rear sway bar. Flexed really well to the point that the links and bushes were the final items restricting travel but didn't actually perform that well off road because the front was still very stiff so the back danced around and spun wheels and the front did very little work. Had I kept the car I would have concentrated more on freeing up the front end (sway bar disconnects or remove it, holey bushes, cranked arms etc) and once it was as good as the rear then looked to do more on both ends or lockers.

PS the rangie looks to be coming along great on facebook. How long do you think till it'll be on the road?
-Scott- wrote:Isn't it a bit early in the day to be pissed? :finger:
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Rampt CUstoms 4x4

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Joined: Thu Nov 01, 2012 1:12 am

Location: newcastle

Post Wed Mar 06, 2013 12:41 am

Re: Range rover classic rear suspension, what have you done.

rusty, i wouldn't say that any travel is restricted at all. its just not as flop happy on the rear. if the weight is there to push it, it will move!
ive just fitted some 36" ranchos to rear. a small improvement. ;)
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gonfellon

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Location: new zealand

Post Sun Aug 11, 2013 11:16 am

Re: Range rover classic rear suspension, what have you done.

Image

found front rose joints on rear trailing arms work good. i dont bend trailing arms or have not bent them sinse putting them in,touch wood and flex is not bad and a good shock should keep pressure on axle when spring dislocates.front radius arms my only problem with drop as chassis bush stops down travel. think it good to replace that with rose or make uj setup there and flexy bushies in the axle to gain more rti and maybe drop my truck down to a 2" spring lift
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uninformed

Posts: 1285

Joined: Thu Jan 15, 2004 8:22 pm

Location: gold coast

Post Wed Sep 18, 2013 7:42 am

Re: Range rover classic rear suspension, what have you done.

Rampt CUstoms 4x4 wrote:Image

this is my daily's current set up. front end remains completely untouched.
set up is a prototype top coil retainer system, with upgraded lower retainers, and a prototype long arm kit. currently still running stock standard shock mounts.
long arm kit uses original mounts on the diff, with new custom mounts on the chassis using GQ lower control arm bushes.
with the rear coils fully retained, the stability of the truck off road has gone up ten fold. the suspension input threw the car is amazing and the added advantage of the front end is now being pushed around a bit making it work better.
the entire suspension set up is going to be completely over hauled, with the hopeful results of serious wheel travel for a daily driver. this is basically stage 1.

Image
rim on the rear on full up travel will get around 4-5" near the rear guards, so it tucks harder then it drops at the moment.
the front end is purposely limited on its drop due to the fact the brake lines are at their limit. (i'll be honest, i fluked the shock length to do so. lol)

Image
please excuse my quick fix bump stops. lack of time caused the dodgyness.



have you done any more on this truck? updates?
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GRIMACE

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Joined: Thu May 29, 2003 3:47 pm

Location: Bum drilling with my buddy Ray!

Post Thu Sep 19, 2013 11:58 am

Re: Range rover classic rear suspension, what have you done.

While this thread has been revisited I may as well add a bit more to my opinion.
The below image is all standard suspension geometry, standard rover rubber bushes all round.
All I have in the rear is longer shocks and cranked arms, springs retained top and bottom, nothing special.
This is how much flex (and probably a touch more) is available from the standard rover rear end.
Image

I installed standard front radius arm bushes (for this trip) to see just how much flex was lost from the front end (as previously been running holey bushes). The lack of flex from the front was pathetic. This helped to force the rear end to work harder in the above scenario.

Going by the above I see no reason to work on any major modifications to gain more 'flex' from the rear end. But I do see a major advantage in a long arm kit.
The vehicle on road will perform much better, climbing off road will be enhanced, and rear steer will be reduced. All a bonus.

The front on the other hand needs attention! Don't want my rover flexing like a pootrol!

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