looking to change to a 6speed gear box

what parts will i need to use? they are coming off a 03 sti type uk

box, gear linkage, prop... what else? been told will match my rear diff off my uk 2000? is that right or do i need the bigger 6speed diff?

 

I'm tired of answering these I wish people would use search

Having done this several times. I can confirm.
If the 6 speed is coming off a UK STI then all you will need is the gearbox, linkage, prop and gear ****. That's it!! NOTHING ELSE despite some saying you need the cradle and release fork etc.

Both use the 3.54 rear diff ratio. So your current diff will be fine.
Your 5 speed clutch and flywheel will fit and if you're using these then you're starter motor will too. It's more straight forward than you think

 

sorry and thanks

 

I might want the diff from the STI if you have it?

 

some one has already had it mate.. sorry