gearbox id

[stacy]

Hi guys, i scored a gearbox from my work its a hilux box and thats about all i know about it. It has been sitting tucked away for quite some time and they were gonna bin it so i got it for my project, (4age mk1 escort) im positive its a W series and after pulling the tail section off it has a broken shifter gate and fifth gear is questionable how can i tell exactly what model it is so i can source some bits for it,cheers Stacy,p.s can put pics up if required tomorrow

[Lloyd]

Basically photos and check ratios