Hi, im new here, and i need some help... i have blown my gearbox internals, and i want to buy a front lsd and a aluminium driveshaft

I own a EDM ImprezaWRX GDG, ej25 engine, year 2006

Well, my problem is fitting related, as i dont know if all usdm parts will fit my car...

I am about to buy:

- rallispec type RA gear internals
- driveshaftshop aluminium driveshaft
- cusco type MZ front lsd

I dont find the cusco part number... so really dont know if is there any MZ for my car...

I really apreciate your help...

thanks I have here a reference to the transmission: TY754VG7AA
lsd which of these would be mine? http://www.cusco.co.jp/pdf/P205-209.pdf
http://www.rallispec.com/prod_trans.htm this is the gears set

 

I just opened my box and is: 4111 if it helps