LSD Identification

[julzy]

Hey guys,

I'm looking at an lsd which is for sale and the guy selling doesn't know whether its large or small axle
I have searched and can't seem to find the easiest way to find out.
Is it just a case of measuring and seeing if its 21 or 23mm???
Any helps most appreciated,

Thanks in advance.
Julzy

[julzy]

anyone?

[eightsixboy]

Hey, 21 splines are zenki and 23 are kouki. Zenki been the earlier and smaller axles, kouki been the later models and bigger axles.