Outer Limits 4x4 Board

like the title says, thinkin of maybe putting rover diffs under my zook. i've searched and can't seem to find anything, i have seen a couple around with this mod done to it.

can someone please give me a bit of an insight.....and please don't flame me on it, i'm only toying with the idea at the moment...if there's any details that are needed tell me and i'll put them up....just wasn't quite sure what to put up

Clint

Have a search in members for a build by Bubs called nightcrawler, or knightkrawler or something.......


Oh, and.... http://carl.outerlimits4x4.com/ftopic19 ... ght=dozoor

by the looks of it bubs only got as far as the ute chop, which i'm not lookin to do anyway....i wanted to keep as much of the body as possible

and dozoor's zook/rangie contraption looks pretty sweet, but i want to keep with the zook chassis, it'd only really be diff swap and coil conversion

keep them coming....good stuff none the less

Clint

I had one years ago, back in 2003/2004 i think it was...

Had a LWB soft top and put all the rover diffs under it, used std sierra chassis and used all of the std land rover suspension and trailing arms/links just on custom mounts we made to suit the sierra chassis, all coil hats, shock towers etc were taken off rover chassis and grafted onto sierra chassis

the only deviation we made from std rover suspension was longer rear links and spring/shock combo as rover stuff would have been too hard

steering was power steer but cant remember what the box was off, but i know it wasnt sierra or rover, and just had custom draglink made to go from box to diff

wasnt that hard really, just buy a rolling rover chassis and you'll have pretty much everything needed to do it...

diffs do stick out a LONG WAY tho!!! but wit the LWB zook chassis and width of diffs it sure was stable

do you have any pics of it mate??

Clint

what are you planning to do to overcome the high diff ratios that a rover has?
from memory range rover diffs are 3.5 ratio not sure about serrias but doubt there that high.
if you are going to swap in toyota centres why not just start there and use the hole diff, maybe look for bundera diffs as the rear offset will match the suzuki rear output.

If you don,t intend to do a spring over , then just go the MQ,MK
and givem a shave before you install , pair of diffs can be found for bugger all, there as tough as nails in a zook.

was gunna go coils with the rover diffs if i swapped them out....would you have to mod the rover housing to take a toyota centre i'm guessing??, haven't had any experience with this

Clint

Na i dont sorry mate, well i do, but no idea where they'd be, didnt even have a computer back in those days so no digi ones saved anywhere and i've moved that many times i wouldnt have a clue where any paper photos would be

Why would you even contemplate putting toyota centres in?? honest question... i know its been done for various reasons but when your only doing it for the gearing why not just put reduction gears in the transfer case??

Simple... easy... and problem solved!!! get the right gears and it will drop high range too

Dont go leaves man, why that got suggested is beyond me, they obviously didnt read the rest of the thread first... stick to your guns and just do the coils... WAY better... your onto it

Rover diffs have a few good things going for them over toy diffs in a zook.

Smaller cw&p which means more clearance under the pumpkin.
Super wide, they are wider than 60s diffs. This may be a bad thing though depending on your setup...
Rear offset pumpkin, better driveline angles than centred lux pumpkin. Yes, bundy's have offset rear too but can be hard to find.
Already setup for coils so no farking around with coil mounts and link setups etc.


Rover owners change to toy centres as they are stronger and have a higher range of ratios to suit, however, in a lightweight zook, the strength is probably sufficient.
Sierra's do have fairly high diff gearing and, as said, traditionally the gearing is obtained from the transfer rather than the diff anyway so you shouldn't have too many dramas there either.



If I were doing it, I would pretty much just copy Elmo and run the Rover link/radius arm set up and weld brackets to accept on the zooks chassis. It may pay to run your numbers through a link calculator before final welding to ensure it will drive relatively properly though, but it wouldn't be too big a deal to adjust it to suit I would imagine.



More importantly than whether it can be done or not though, is the usual questions. What size tyres are you going to be running? Engineered and road driven or trailer queen? What wheelbase you shooting for? What terrain do you want to drive with it? etc. etc.

whats the weight difference between rover diffs and 60 or lux diffs? Unsprung weight is worth thinking about as well =)

tuf045 wrote:what are you planning to do to overcome the high diff ratios that a rover has?
from memory range rover diffs are 3.5 ratio not sure about serrias but doubt there that high.
if you are going to swap in toyota centres why not just start there and use the hole diff, maybe look for bundera diffs as the rear offset will match the suzuki rear output.

Depending on the zook model - WT 1.3's were 3.7:1, not quite the 3.5:1 but close. NT 1.3's were 3.9:1.

Layto....

The clue is probly use the series centres , there 4,7-1 that will give you a better ratio , the down side is there even weaker then the 3,5
don,t think they would be to bad in the setup you have in mind it should
Be OK , some where between stock zook and lux ,
There are some tricks to make them live longer ,adjustable seating bolt on the opposite side of the crown gear , backing the area of pinion contact.

axle sizes

rear zoook 1.09" 26 spline
rover , 1.11" 10 spline
rover later model and sal 1.24 24 spline

Lux 1.31 30 spline

v840 wrote:More importantly than whether it can be done or not though, is the usual questions. What size tyres are you going to be running? Engineered and road driven or trailer queen? What wheelbase you shooting for? What terrain do you want to drive with it? etc. etc.

i plan to run between 33-35" tyres, most likely 33's for road duties, i would like to get it engineered and rego'd, would be shooting for a touch shorter than a LWB (85-90") and lastly i'd be driving usual terrain for this area (mirannie, sugarloaf, killy, wattos that sorta thing)

i want to try and keep the tub if i can, but if i have to ute it i will.

keep the comments coming guys.....this is helping me heaps

Clint

Sheafofskie wrote:like to get it engineered and rego'd,

best you find an engineer and start checking things over with him!

Also - check what size tyres have previously been engineered on a rover (rover diffs) - you might find you can engineer 35's seeing as you're upgrading axles and brakes etc.

I think there is a bloke at bero throrton way he has a lot of rover shit there have a talk to him.

that wasn't near the mower place just before u go into thornton was it......had a big yellow sign on the front of the building......had 5 or 6 rangies in the yard @ 1 stage???

Clint

This is a NT suzuki rear diff next to a Rangie Rear diff, from memory its 7 inches wider each side and the diff center is close to same size.
Rover tracks i have been told make life time warranty 30 spline axles to suit toyota centers in rover housings.
Barry at Hytuff engineering makes 10 and 24 spline axles to suit rover centers and can make custom items .
Most rangies come with 29 inch tires standard, Defenders came with 750's(32's) and some rare old leafers came out with 900-16's(35's)The middle weight i think.
32's Would be easy to engineer, 35's would depend on the engineer.
Old leaf spring landy's had 4.7 (10 spline)diffs but are said to be weak,
Rangies and Defenders had 3.5's(10 and 24 spline) usually and
You can get 4.11 ratios.
You can get free wheeling hubs for rangie diffs, AVM make them for defender diffs i think, a bit of fiddling and they go on, i know some one who has done it. Standard landy rims are 16x7 (disco)16x5.5 (leafers) some others, i don't remember them all
Hope this helps ;-)

Tim D wrote:This is a NT suzuki rear diff next to a Rangie Rear diff, from memory its 7 inches wider each side and the diff center is close to same size.
Rover tracks i have been told make life time warranty 30 spline axles to suit toyota centers in rover housings.
Barry at Hytuff engineering makes 10 and 24 spline axles to suit rover centers and can make custom items .
Most rangies come with 29 inch tires standard, Defenders came with 750's(32's) and some rare old leafers came out with 900-16's(35's)The middle weight i think.
32's Would be easy to engineer, 35's would depend on the engineer.
Old leaf spring landy's had 4.7 (10 spline)diffs but are said to be weak,
Rangies and Defenders had 3.5's(10 and 24 spline) usually and
You can get 4.11 ratios.
You can get free wheeling hubs for rangie diffs, AVM make them for defender diffs i think, a bit of fiddling and they go on, i know some one who has done it. Standard landy rims are 16x7 (disco)16x5.5 (leafers) some others, i don't remember them all
Hope this helps ;-)

Can you swap the side gears between the two ?
IE put the 24 spline side gears from the 3.5 into the 4.7 diffs ?

Or is the pinion a course spline as well ..

Sheafofskie wrote:that wasn't near the mower place just before u go into thornton was it......had a big yellow sign on the front of the building......had 5 or 6 rangies in the yard @ 1 stage???

Clint

Yer that's the one i think a mate sead there waz some there hay

yeh i knew that shed very well....my rangie was in the yard at one stage...but lost interest in it and didn't want it so i toldd him to get rid of it

Clint

To run these diffs you would use 24 spline ARB lockers and put what ever ring and pinion ratio on that, you can buy nice new after market end caps to suit the 24 spline axles, from Barry at Hytuff engineering.
He also makes the heavy duty axles to suit.
THat is what i would do living in QLD, there are manufacturers down south like Jack Macknamrer and so on who make rover gear.

jack mac does a toyota setup for a rover housing. using this in vic with stock rover brakes (4wheel disc) its very easy to get it engineered with 35's

So youre talking a hilux center in a rover housing using rover axles??