Can anyone recommend a good mechanic in the Phoenix AZ area to change out the 4.1 ring and pinion in my type 1 torson? I've got a 3.6 set I'd like put in. The miata landscape has changed considerably here over the past few years so I'm looking for updated information.

Thanks!

 

Not in AZ but I’m in LA and have set up several. Happy to do it if you wanna ship it.

 

Flatout Motorworx did my diff a ways back, not sure if they are taking new customers anymore though. Could always call and ask.

 

Thank you for the offer! I'm hoping to have it done locally to simplify logistics, but it's good to know I've got the option. Too bad the hyperloop between LA and Phoenix never gained traction...

I wish they were still open. :(

"Permanently Closed" :(

 

Found a big operation in town that has experience with Miata differentials:
Phoenix Rack and Axle
https://phoenixrackandaxle.com/
(602) 252-8255 or (866)950-7623
114 N 32nd St # 101, Phoenix, AZ 85034

They encouraged me to provide all of the parts for the swap to ensure Mazda goodness, so I worked with Bill Wilner aka Owner Dude at https://miataroadster.com/ to put together the bits needed.

I can see why the car still had stock brakes and the 4.1 ring and pinion that came with the torsen - swapping those out definitely doesn't qualify for a build thread named "sean's cheap thrills"!