sygjim

iTrader: (1)

what is the difference between the axles and gearbox between the xr4*4 and the cossie 4*4 ?

i know that the transmissions are shorter on the XR ...

who have this kind of transmissions fitted on cossy ? what is the top speed ?

LHD220Turbo

iTrader: (4)

drive shafts are different too

The Youth.

iTrader: (1)

rear axle on an xr4x4 has the same 7 " diff as the cos 4x4, non spherical rear arm bushes, thinner arb and smaller non vented disks.

the gearbox, has a differnt front housing/bellhousing apart from that I don't know the difference.
the 2.0 xr4x4 has the 3.9 diffs as opposed to the cos 3.62 IIRC

steve

JohnnyB

The diffs, drive shafts,(well the front xr4x4 are a little longer which is better) hubs, stuts all the same.

The gear box internals are the same as well

graham c

iTrader: (5)

is it the dohc 4x4 or 2.8? the dohc boxs are the same as cossie ratio,s are differant tho in the diffs

sygjim

iTrader: (1)

friend of mine is looking for a 4.44 , but the 3.9 could be a good choice

PAUL S

iTrader: (8)

the 2 litre 4x4 box is the same as the cosworth, but you need to change the clutch release arm and the pivot pin it sits on, to cosworth items for it to fit.

the v6 box has a different bell housing set up

m4tt274

iTrader: (2)

anti roll bar is a 26mm to a cos 28mm
front brake disc's are 260mm to a cos 280mm
rear disc's and calipers are same as cossy 2wd
drive shafts are slightly longer
the diff ratio's are the same 3.6 as cos but the 2.0DOHC has a 3.9
viscus cuplink is differant to cos(unsure specifically what)
you have non spherical rear arm bushes
and the V6 has a differant bellhousing.

as far as i know everything else is the same.

dojj

iTrader: (3)

if you are looking for cosie bits from non cossies for a 4wd transfer then you can use the props and gearbox from the dohc cars, and the diffs from the 2.9 cars can also be used, the wishbones on the xr's have the arb fittings on them
the front hubs take thicker struts so can be interchanged (the struts) with the cossie but not the hubs front or rear
you can also use the 4wd steering racks and intermidiate shafts as the 4wd versions differ a lot from the 2wd ones, and the rear beams can also be made to fit,although you need to know if it's a 7" or a 7.5" fitting
rear drive shafts are interchangeable, although they are sided and they come in different lengths for the 7 and 7.5 diffs due to the extra width of the 7.5 over the 7" version
the 2.8 stuff is not useable other than the rear end, but again, not the hubs
front shafts are longer on the non cossie cars because they have a longer range of motion in the suspension travel

that's about it
don't forget that if you are using the V6 box, you also need to change the input shaft as it's a different length as well

dojj

iTrader: (3)

it's pot luck with the arb sizes
front brakes are 278mm
rear discs are vented and the calipers are wider to suit, but hub carriers are the same
front shafts are longer
rear shafts are teh same
dohc has a 3.92:1 diff ratio front and rear, everything else has the 3.62:1 ratio, more teeth on the pinion drive gear
viscous coupling is the same
and don't forget that there are 2 different front props, solid and tube for the later cars

The Youth.

iTrader: (1)

hub carriers are not the same



cos 4x4 on the left xr4x4 on the right the disks as well as been vented on a cos 4x4 are also slightly bigger hence the higher carrier

steve

robrs2

Viscus diff slip rates are different, XR(Dohc) to the cossie. Both the box and the rear diff.

sygjim

iTrader: (1)

so, do you think that it's a goode idea to fit xr4*4 diff and gearbox on a cossie ?

graham c

iTrader: (5)

gearbox should be fine

sygjim

iTrader: (1)

i thought about the shorter diff, the standard gearbox is very long on a saphhire

dojj

iTrader: (3)

i was on about the 2wd and 4wd cossies being the same mate

robrs2

If your using the dohc low ratio diffs, front and rear. That's what some of the drag race boys do. Dohc box will be fine, just change the clutch arm an pivot pin as said above.

sygjim

iTrader: (1)

thanks mate

The Youth.

iTrader: (1)

ok m8 didn't realise

steve

phil_focus

quick question, i'm sure someone will know.

what is the front/rear split on the xr 4x4 and is it the same as the cossie??

snoopaloopa

iTrader: (3)

64r/36f seems to sound familiar

Mind you thats the 2.9 v6 , I dont know if the 2.0 twinky is different?

phil_focus

awsome, thats a little bit more to the rear than i thought.

thanks for the info mate.

Glenn_

iTrader: (1)

some top info here.

phil_focus

there definately is glen. tempted to download this thread for when i've graduated, got a job and get a xr4x4 for a project.

dojj

iTrader: (3)

it's the same 1/3rd to the front and 2/3rd's to the rear due to the gearing used in the transfer box, let me find a pic and you'll understand, it's purely mechanical

phil_focus

cool that would be good of you dojj as i dont know how the transfer box distributes it.

dojj

iTrader: (3)

there are 3 cogs that turn inside by the output shaft of the box
the outside is turning the outer posrtion of the assembly so it rotates the rear wheels
and the vc centre rotats the front wheels
i'll try and explain using just one picture
the bit on the right is driven by the output shaft from the back of the box
this rotates the 3 cogs
these 3 cogs in turn rotate the bigcog in the top left
this cog has 3 sets of teeth in it, the big one in the middle that is rotated by the 3 cogs, then the rear part which rotates that slimmer partially hidden plate, and the viscous coupling that you can paritally see in the background in the top right
the slim plate in the middle that you can sort of see, is also connected to the front part of the big unit behind the 3 cog plate, you can see it in the picture in the middle
that bit is then connected to the output shaft for the rear of the box
then you have the output flange that is bolted to the back of the box outside, hence the seal
there is another big cog that sits inside the teeth you can see inside the centre of the viscous coupling, and that drives the chain for the front wheel drive
the viscous coupling has 2 parts, the outer and the inner, the outer is driven by the big cog, the inner is driven by the viscous fluid

i hope that makes sens and explains things, although someone will come along and simplify things probably

phil_focus

interesting, you know of any vids showing it working?

phil_focus

cheers mate. i'll keep reading and using pics and i'm sure i'll get it 8)

dojj

iTrader: (3)

not sure about vids, but i did do a complete thread about rebuilding one if i can find it

phil_focus

cool but you dont need to go finding it now mate...not graduated yet so the project is a long way off

dojj

iTrader: (3)

they aren't in order, but i'm sure you'll get the idea

phil_focus

cool cheers dojj

shantos

re: used transmission pricesIm thinking about buying a salvaged one with 20K very cheap anyone know why it would be a bad idea if the trans has a warranty?

dojj

iTrader: (3)

internally they are the same across the 4x4 range but you really need to find out the power it's been running as they tend to break up around the 350 brake mark

also, at this sort of mileage you should have a good look at it as it's a lot of work to fit and refit if it's got something wrong with it

the only things that go wrong with the transfer box though are the chains and the viscous couplig, both of which can be either simply or very difficult to replace if they are old and worn