hi guys

I started to work on my 2WD cosworth after being stopped a long time.

before stopping, I bought a full rear beam and arm and ship it directly to get the 6 degrees modification.

yesterday, starting mounting the parts I realized:

- I do not have the fixation axle for the rear Anti Roll Bar
- the width to fix the damper is larger than my original arm
2WD width : 42mm

this new arm: 52mm plus you can see the design is different

I've been able to install the 7'5 differential so the beam is a 2WD beam



any idea to identify the arm specification ?


thanks for your help.


I looked up for a kit to update the ARB with rose join link and bracket but I did not find anything

 

This is a gen cosworth saff 89 arm.
If that helps.

 

Thanks

but i can see on the pic you have the axle for the arb fixation

its a 1989 2wd so

but i never see 2 different ref for the rear with wider fixation

 

Is the hole size for the bolt of the shock 10 mm? If so I suppose it's an arm off a standard non-cosworth Sierra.

 

Same diameter for the hole bolt

and i fitted the 2wd hub properly


really strange


regarding my old email
it seems to be a group a beam and arm

...

 

The wider mount for the shock is normally only on normal Sierra's. The bolt hole can have been drilled from 10 to 12 mm to fit the Cosworth shocks.

 

Thanks

so they have been drilled

appart of those 2 differences

cosworth arm are reinforced / stronger than the "normal" sierra arms ?

 

i used these whiteline universal balljoint drop links .although i havent tested it out yet.


ps i know theres a driveshaft bolt missing lol

 

Thanks

do you have a link for the whiteline drop links ?

thanks

 

http://www.demon-tweeks.co.uk/perfor...int-drop-links

 

I don't know if the actual arms are stronger. The bracket for the shock looks stronger on a cossie arm though.