Futofab STI stubs are physically different than the Williams Machine STI stubs.

[geob415]

Hey Everyone, 

 

A few weeks ago I posted in the forrums about an issue I ran into with WRX STI stubs from Futofab that were supposed to fit my Mechanica r180l STI diff(3.9) for the conversion which is why I bought the 930 axle kit. The 930 axle kit works amazing but the seperate stubs Ihad to buy from Futofab didn't work

 

 As you can see in this video the Williams Machine stubs are physically smaller copmared to the Futofab stubs. Luckily, I had some refrence photos from the awesome people here on the  Ratsun forrums to point out the slight differnces in the two stubs Take a look here at the video and pictures to see for yourself. Zcardepot bought a bunch of these stubs from Williams Machine a while back so if anyone has a 3.9 Mechanical r180 differential that's looking to do this swap you should buy them from John Williams himself or Zcardepot. 

 

https://www.instagram.com/p/CbV9H--lCU9/

https://imgur.com/a/kMH76PW

[Jesse C.]

Thanks for the info and update! 

[SupDoc]

FYI, I just installed the conversion stub axles that come with Futofab's CV combo package and didn't have any problems. I used these on a 2006 Subaru STI mechanical LSD.

 

 

Edited March 27, 2022 by SupDoc
Part name included.

[geob415]

Those look smaller than the stubs that I have— I also found out that futofab doesn’t supply the WCR brand stubs because of durability issues. I need to make a post about that as well for an update. 

[SupDoc]

I take it that you did not buy the entire axle kit from them (just the conversion stub axle)? The one in your picture does look different than the one they sent me.

[geob415]

I bought the 930 CV axle kit and the STI stub axle adapters back in 2018. The CVs fit perfectly— the WCR Wrx Sti stub axles didn’t.