ZhouNeill

Hi, I have a 90' gxl n/a, and I was curious if the s4's LSD would fit into the s5 housing, or would I have to swap the whole rear end? I was told it would work but I wanted to ask the experts before I tried anything on my own.
Thanks for reading.

Roen

iTrader: (2)

they would fit the housing, as long as it's NA to NA, or TII to TII.

A Miata Torsen will also fit an NA.
An FD Torsen will also fit a TII.

ZhouNeill

Thank you for the reply and info. Well I dont have the money for the tII rear end so I wanted to see if the diff off my n/a s4 would work. Which do you think works better: the miata torsen or the s4?

farberio

iTrader: (7)

I believe the s4 is clutch type, and it really comes down to preference.

Roen

iTrader: (2)

depends on what you want to use it for

drag? S4
road course? miata
autox? either will do, as long as you build the clutch diff to a non-aggressive lockup rate.