omega what parts did u use?

[beardydave]

Having gone down the route of trying to fit in a BMW 750 rear diff and giving up on drive shaft lengths and off-set input flanges wanting to occupy the same space as my left kidney...

I've gone down the Ford diff route, simply because the chassis is designed for it already.

This way I just have to modify the prop-shaft to meld the BMW and Ford shafts, rather than two driveshafts. And i'd have to shorten the ford shaft for a standard build anyway.

The advantage of the Ford diff is the abundance of cheap LSDs from the cosworths. For the omega diff you'd need to get one from quaife. £££

Plus the quaife one will be an ATB diff which won't be much use once both wheels are spinning. I believe the Ford Cosworth diff is a proper plated diff which will keep the rear axle locked even after you've broken traction.

[locost-turbo]

thanks for that. I think I will go down the ford route. no learning all that is ford geearbox. t9, t5? mt75. but again think the stronger gearboxes are bigger and need chassis mods.

if it was my second build I would not be phased but first one. prob should follow the book as best I can

n

[beardydave]

That's been my plan.

Next build will have an aluminium chassis with wider transmission tunnel to take the bmw diff, and wider rear and front track to compensate. And integral roll cage designed in from the start, and possibly fuel tank relocated within the wheel base.

[twinturbo]

the only type 9 that will take big power will be a quaif one. you won't see change from a few grand.

MT75 will last ok but it's a fixed belhousing unless you find or buy one of the special non integral boxes.

T5 is more than man enough , and there is more than likly a belhousing out there.

TT

[locost-turbo]

t5 research in progress. thanks for the info!! did not realise the mt75 was fixed bellhousi coukd have been an expensive error. does the t5 have a removable bell housing? or can u get longer shafts made to accommodate a plate with the different patterns on? or is t5 the same as the t9 regarding bellhousings?

anyone want to give me a cossie???...... anyone........ <tumble weed>

nick

[twinturbo]

T5 is one of the few boxes that ford UK bought in rather than manufacturing.

The T5 comes in a number of guises and is probably one of the best supported boxes in performance circles worldwide. Borgwarner sold it of to tremec. t56 is the 6 speed version.

TT

[locost-turbo]

do u know what other vehicles it came in? or is it just ford? and if I use the t5 box which I see arent too expensive and find the cossie diff. is the prop and drive shafts the same throughout the sierra range? looking at flea bay, seems that anything with cosworth cost ten times more. is this because its all uprated? or just the name.

now need to work out if uprating a standard diff with lsd will be cheaper/stronger than a stardard cossie diff which I think already has the lsd built in.

thanks for your help. early stages. but want to have a plan of what I building and before I start tacking metal together.

[Johno]

Just spotted your location Nick, not too far away from me.
My daughter and wife have a stable in Gedney (Piinstock Stables) so without knowing I probably go past where you live...

[locost-turbo]

my wife poppy had raff (her horse) at pinstock till about a month or two ago. think she might be back soon!

so I probably know them

small world!

[Johno]

Poppy, that name rings a bell.
Out of curiosity does she sell/modify saddles?
Like you say small world, glad to see someone close is also taking the plunge...