Trying to ID a Ford Gearbox

[8v2000]

I have a Ford 4 speed gearbox that came out of a Ford Estcort MK1 racing car.I have numbers but do not know its real ID , Looking for help
Herewith below numbers off box:
UD 82
7L3
5/624525
77BC-7505-BA
77ET-7008
83ET-7008

Gearbox up for sale but do not want to sell without accurate detail. Hope someone can help me.
Cheers