Outer Limits 4x4 Board

Hey all, i just want to know if putting range rover diffs under a sierra would work??

Do the rangie diff pumpkins have to be in a similar position to the sierra diffs?? would this be a logical diff swap taking into consideration difficulty to set it up, things like steering, drive shafts, and breaklines???

Thanks.

Brock.

Rangie diffs, may i ask why?

They are relatively expensive to buy parts for and i'm lead to believe (may be wrong) but not all that strong.

Rangie diff pumkins are drivers side offset front and rear. (i beleive same as zooks)

Under a range rover the diffs are considered fairly weak when running anything larger than 32". and more so again if you fit a locker witt out upgrading the axles.

They are wider than hilux diffs (about 65mm i beleive, could be wrong)

And parts are not relativly expensive for them.

I have seen a pair of diffs for $400 and another pair for $600 this year thats disc to disc, and failry cheap IMHO.

Many aftermarket options with the rover gear.

I not saying they are better than Hilux diffs btw, just stating sum facts.

Believe that Bill (Daddylonglegs) has done this before or has a mate who has.

Memory hazzy but believe that this worked out very good.

AnthonyP wrote:
Under a range rover the diffs are considered fairly weak when running anything larger than 32". and more so again if you fit a locker witt out upgrading the axles.

that right there says dont run them

go hilux

They are also easily upgradeable with Toy centres (lockless) or Discovery 24 spline axles (worked for me).

Mine is twin locked on 33s and never had a problem. That and you could buy two locked Rangie diffs for not much more than two open lux diffs. Plus already setup for A-frame rear, coils, discs all round, cheap standard flex up front with holey bushes, etc.

Yes the rover diffs with the 24 spline axles and locked should be abit stronger and yes as stated there are many upgrade options.

The toy centre conversion being a good one, and once completed will be stronger than standard lux diffs. Usually the rear hilux centre become the common problem, but under a zook with 13 horsepower and on 33s you shouldnt have any dramas.

Also as fightara said have coils buckets etc etc all ready.

AnthonyP wrote:Yes the rover diffs with the 24 spline axles and locked should be abit stronger and yes as stated there are many upgrade options.

The toy centre conversion being a good one, and once completed will be stronger than standard lux diffs. Usually the rear hilux centre become the common problem, but under a zook with 13 horsepower and on 33s you shouldnt have any dramas.

Also as fightara said have coils buckets etc etc all ready.

if your gunna spend time and money on lux center conversions why not just run them from the start

buy a set of 30spline longs and ur good for 40's

redzook wrote:

AnthonyP wrote:Yes the rover diffs with the 24 spline axles and locked should be abit stronger and yes as stated there are many upgrade options.

The toy centre conversion being a good one, and once completed will be stronger than standard lux diffs. Usually the rear hilux centre become the common problem, but under a zook with 13 horsepower and on 33s you shouldnt have any dramas.

Also as fightara said have coils buckets etc etc all ready.

if your gunna spend time and money on lux center conversions why not just run them from the start

buy a set of 30spline longs and ur good for 40's

But you've still spent more money If you can pick em up cheap I think they'd be fine, and it would be a cheap, easy way to get coils under a Sierra.

Comes down to weight and gearing too, look at how fragile Hypos GQ diffs were under his old lux, yet luxes under your Zook seem to go fine with the same tyres.

Plus if he puts Toy diffs under his Sierra he'll be just like every other Grimace zook driver

fightara wrote:

redzook wrote:

AnthonyP wrote:Yes the rover diffs with the 24 spline axles and locked should be abit stronger and yes as stated there are many upgrade options.

The toy centre conversion being a good one, and once completed will be stronger than standard lux diffs. Usually the rear hilux centre become the common problem, but under a zook with 13 horsepower and on 33s you shouldnt have any dramas.

Also as fightara said have coils buckets etc etc all ready.

if your gunna spend time and money on lux center conversions why not just run them from the start

buy a set of 30spline longs and ur good for 40's

But you've still spent more money If you can pick em up cheap I think they'd be fine, and it would be a cheap, easy way to get coils under a Sierra.

Comes down to weight and gearing too, look at how fragile Hypos GQ diffs were under his old lux, yet luxes under your Zook seem to go fine with the same tyres.

Plus if he puts Toy diffs under his Sierra he'll be just like every other Grimace zook driver

easy way to get coils under a sierra?

were do the coil mounts sit?
id be suprised if you could use any of the standard mounts

so ur better of starting with new stuff any way were u can put the stuff were u want

hypos breakages were due to suspension design
im pretty sure after he got it sorted he didnt break a thing

he'll be like every other gay zuk driver because why change somthing that works so well

yeh i may have spent more money but wouldnt be buy much and id say the setup i mentioned would be a fair bit stronger

Thanks for all your input, the reason for using rover diffs is ill get them cheap, cheaper than mentioned above, also about not using the stock coil mounts etc, they probably wont be in the right place.

Will the stock rover coils be too stiff for the weight of a sierra??

My sierra ATM has the same diff clearance as my dads rover with 35's and even with 35's he has smashed a rear centre on a track that would be considered not that tough. (could have been a bit worn out im not sure)

Bottom line is they'll be cheap diffs and i want to know of people who have done it (pics would be excelent) i dont want a huge rangie v's hilux diffs convo. just the facts.

Brock.

Thing i can see as being a problem are:

Steering: will i need the whole steering setup?? are all rovers P/S?? will the rover P/Sing pump and box be usable on a sierra??

Brake lines: Rover diffs have duel lines going to the callipers where as (NT) sierra only have one, rover rears have a T peice on the housing, (NT) sierra have two lines going to the stock diffs.

Drive shafts: custom made ones will be required for sure??

Diff ratio's: What ratio are standard rover diffs??

Help on these topics would be excelent.

Thanks alot.
Brock.

Tim,s Correct

The mere thought of rangy axles being an upgrade for anything is well
, funny

Actually i would bet a few bucks , that although a micky hair smaller in diameter a W/T 90 zook rear axle would be stronger than the rover Ten spline rear.

Yes the front has a much larger C/V ,then the zook , so the front would be stronger .

Not worth the bother ,
Just my 2c

Larry.

Hay small talk shoot a pm to Ludachris on this board as he has in his yard at the moment a long wheel base sierra with a full rangie diff conversion including all spring shock mounts and a frame
When you look under it it looks just like a rangie should be
His mate picked it up 4 $400 bucks
Also look for v8zuki on this board as he was the one who did the whole conversion a while ago and will be able to give you the full run down on whats needed
Cheers Jamie H

redzook wrote:if your gunna spend time and money on lux center conversions why not just run them from the start

buy a set of 30spline longs and ur good for 40's

you saying the rear lux centre will cop 40" rubber , cause i was worried about the rear toy 9" with the 39s ? ? ?

I personally would just go the lux route, but i not gonna give him greif for goin the rover route, it works under the buggys with the toy centre conversion, no reason it wont work under the zuk.

But as you said both will need to be upgraded to run large rubber.

If you can get the rover diffs cheap and wanna do it... DO IT, but with the larger rubber you can expect to break shit (but you can expect to break the lux stuff too) Just be ready to do an upgrade of sum sort later on down the track.

Some break, some don't.

My mate runs 35" ETs with a VERY HEAVY right foot and complete disregard for the welfare of his running gear...no breakages.

I run 37" Creepies on stock Defender running gear - all good to date - and I have not been too shy on the loud pedal. It is running at around 150kw and at full noise, going up hill on rocky terrain, trying to snatch my mates RR back onto 4 wheels - nothing broke. The fender was bouncing around, going nuts wanting to cut loose and it was all good.

You can always opt for the toy centre conversion if it all goes wrong.

Micka

Micka wrote:My mate runs 35" ETs with a VERY HEAVY right foot and complete disregard for the welfare of his running gear...no breakages.

I can vouch for that... his diffs are (seemingly) alot stronger than mine were (front only) as he has a maxi now, but yeah he flogged it good well and proper on the weekend.

small talk wrote:Thing i can see as being a problem are:

Steering: will i need the whole steering setup?? are all rovers P/S?? will the rover P/Sing pump and box be usable on a sierra??

Brake lines: Rover diffs have duel lines going to the callipers where as (NT) sierra only have one, rover rears have a T peice on the housing, (NT) sierra have two lines going to the stock diffs.

Drive shafts: custom made ones will be required for sure??

Diff ratio's: What ratio are standard rover diffs??

Help on these topics would be excelent.

Thanks alot.
Brock.

all rangies from 77 on are standard with power steer and was on option prior to that. standard ratio is 3.54:1

AnthonyP wrote:

Micka wrote:My mate runs 35" ETs with a VERY HEAVY right foot and complete disregard for the welfare of his running gear...no breakages.

I can vouch for that... his diffs are (seemingly) alot stronger than mine were (front only) as he has a maxi now, but yeah he flogged it good well and proper on the weekend.

Maxi is only in the rear. Front is all standard rover.
And that display on the weekend was tame compared to normal. When he sorts out the carbi problem, you will see some big numbers coming from the little rover V8

Micka

Weight of the vehicle is a big factor in real-world axle strenth. Rover axles on a light suzuki with a small engine should be able to handle some pretty decent tyres (e.g. 35's) without much problem.

IMO stock rangie axles (3.54:1 ratio) would be significantly stronger than stock suzuki axles, then toyota would be significantly stronger again.

AnthonyP wrote:

redzook wrote:if your gunna spend time and money on lux center conversions why not just run them from the start

buy a set of 30spline longs and ur good for 40's

you saying the rear lux centre will cop 40" rubber , cause i was worried about the rear toy 9" with the 39s ? ? ?

yeh i reckon it would do it easily
with my 13hp and how light the back half is
u just have to be sensible

ofcourse i wouldnt run 5.29's with 40's tho

have a look at gonads thing
i think he runs 5.29's with 46" i think he has broke it but not many times