anyone have a bit of knowledge? im trying to figure out which diff i should run in a 90 miata with a vq35de swapped in 350z six speed tranny, i was thinking z32 diff carrier and axles atleast? custom driveshaft.. any input?

 

The R230 (300ZX Twin Turbo) differential is incredibly robust and would handle the power output fine - it's actually larger than the popular Ford 9". The R200 (300ZX Non-Turbo) may not handle the power.