I've managed to lay my hands on a real rarety... 2.9 Granada Cosworth Rear Diff...

Converting to chain driven later on today

Couple of questions...

Will a 1991 Cosworth have had a LSD??

Anyone know the ratio? (Tag plate is missing)

And... Whats it worth??

I got one so its not that rare



to tell if its a LSD just try tuning one output flange, if its very draggy and the other side hardly moves its a LSD

It should be an LSD (but the later ones had traction control instead)

basicaly its the same as a 2wd sierra cossie diff - but with flanges for the smaller 100mm CV joints
so it should be a 7.5" with a 3.64 ratio

Nah the car didnt have traction control...

Awesome then

Also when buildingthe chain driven diff... and easy (and cheap) ways of sealing the actual diff?

Thought drain pipe may do the trick, but don't know how solid it'll be...