USDM 350Z uses R200 diff.. same as silvias and skylines.

anyone know if R200 diff off other cars such as silvia/skyline would fit on a z33 ?

S15 silvia has helical(torsen) LSD from factory, and was wondering if it would fit, it has 3.69 gears too

 

I don't believe any are a direct swap... hence the custom work needed to mount r200's for the SR swap.