I have a 3.9 Torsen diff from a 01 NB miata. The diff includes both halfshafts, a driveshaft, and the diff, which is everything to go from a open or viscous diff to a full torsen. It was purchased from miatapartsgroup.com A reputable miata distributor for $1100. The diff was never installed because the car was sold before I had a chance to install it. The 3.9 Gear ratio will not only give better gas mileage but longer gears, this is perfect for people who are going Forced induction or who maybe just want a longer fifth gear for the highway cruises (I know I hated cruising at 6k on the highway, in my NA). If you have any questions please ask, I'm open to offers but please be reasonable.

 

Ever consider shifting out of 3rd

 

BAHAHHAHAHAAHAHAHAAHAHAHAHHAHAAA

 

I just picked up a set for $700 from a local dealer... Except i have no idea what final drive is on it.... lol!

 

Listed on m.net for $800

http://www.miata.net/cgi-bin/isc/cla...evaction=today

 

seriously, 6k in 5th in any miata will have you over 100.

 

i think 5200 is more reasonable, but still higher then i'd like... it is a great speeding deterent however

 

3.9 ... im gonna be going 3.9 w/ rx7 diff soon. Until then the car is on jacks

 

still for sale?