A diif' query

I have been offered a diff for my BEC Phoenix.

What I do know....

It is 7.5"
Ford

Code on the diff' is 83BG4025BE

What I need to know is what ration it is and if it is likely to be LSD.

Any help apprecited

there's a sticky on this stuff in the engine and transmission section

many thanks , but cant find the code I have listed anywhere????

Still cant find the answer to the diff code question any help appreciated