evo 2 5th gear

[turpy]

Hi can anyone tell me which is the 5th gear baulk ring on my evo 2 gearbox is it the one on the very outside when you remove end cover or is it the one behind the syncro hub thats harder to get to, also need a good place to get gearbox parts
ps a parts diagram of the gearbox may be handy if anyone has one

thanks