I have a 86nA I use as a daily driver. My stock lsd is failing, bad bearing or ring and pinion. I also have a 90TII, an extra 88TII lsd and a 87NA lsd. The 88lsd needs to be overhauled. I want to use the 88 in my TII and I wasnt sure what to put in my NA. The mods are
streetport/rebuilt
RBheader/presilencer
dual thru mufflers
no emissions
other crap not worth mentioning
I want to use the car for driftsession here and autoX.
The TII would be more work to make fit,drill driveshaft and get ahold of TII halfs, but It would take more abuse than the 87na lsd.
what would you use if you were in my situation?
Im kinda leaning to the 90 viscous in the NA.
sky

 

Im confused, what is the external differneces between the s4 lsd and s5 lsd, i was under the impression they were the same externaly

 

sell me your 90 TII LSD

 

you need to put the same series lsd in your car and you will find out by more posts that an s4 is really a better lsd but the s5 GTUs is the one to have only because of its 4.33 ratio not because its a viscious type

 

I didn't want to make a new forum for this so I adding my question here.

Which trims came with LSD? Were they optional? I wanna buy a project rx7 from an auction and I wanna know how to tell if it has LSD. How do I find out? Pics? Thanks.

 

can be retro-fitted into a S4 clutch type rear end. Been there, done that.

 

why cant I put a s4TII diff in a S5 car? arent the pumpkins the same. I dont care about gear ratios. I would rather have the clutch type but I dont want to rebuild the NA one. I wasnt sure if the power Im putting down along with clutch kicking would toast the S4 na. Woulnt the S5 be more durable.

 

mounts exactly the same so long as your talking NAS4/NAS5 or T2S4/T2S5. So, it comes down to this you prefer or which is available. Installation makes no difference.

 

Get the mazdatrix torsen it's the best money can buy......