Gearbox for uk v reg 2000 turbo
 

Hi just after bit of help,
My gearbox is on its way out thinking about eitha rebuild or recon but came across someone selling supposedly new boxes but with different code would it fit?
What ratio would it be?
Mine is TY754VN1AA
Box seen is TY752VN6AA

Any advice/help greatly appreciated.
If not who good at rebuilds, what sort cost etc obviously vary dependent on work required but just after some rough figures.