Welcome to the North American Subaru Impreza Owners Club Monday May 10, 2021
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-20-2019, 10:07 AM   #26
CaptainSlowbaru
Scooby Newbie
 
Member#: 445600
Join Date: Apr 2016
Chapter/Region: Tri-State
Location: Rafferty Subaru, PA
Vehicle:
2002 Outback Sport
Green

Default

I'm reviving this old thread to introduce some new info.

The need to change the whole knuckle didn't sit well with me- I thought there had to be a simpler way, like simply changing out the bearings. Turns out I was half right: I took new front and rear bearing assemblies from a '13 WRX and a '15 WRX, and sat them side by side. The REAR bearing assemblies appear completely interchangeable, so no knuckle required for the rear. The FRONT bearings are not interchangeable, the mounting bolt pattern is different. I verified that the '15+ WRX uses the same bearing as all '08-'14 STi's, and even the '15+ Legacy and Outback. In other words, there doesn't seem to be any 5x114 FRONT hub that directly mounts into a 5x100 equipped knuckle.

I would still like to compare the front knuckles from the '13 and '15+ WRX- will the '15 knuckle fit my stock '13 struts, unlike the '08-'14 STi knuckles? Does anyone happen to have an answer to that?
* Registered users of the site do not see these ads.
CaptainSlowbaru is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 03-10-2020, 12:39 PM   #27
jurden
Scooby Newbie
 
Member#: 506703
Join Date: Sep 2019
Default

Quote:
Originally Posted by CaptainSlowbaru View Post
I would still like to compare the front knuckles from the '13 and '15+ WRX- will the '15 knuckle fit my stock '13 struts, unlike the '08-'14 STi knuckles? Does anyone happen to have an answer to that?

I have a 2012 WRX sedan and I bought a full set of knuckles with hub, rotor, caliper from a 2015 STi. According to parts.subaru.com, the front knuckle is the same from the 2008+ STi's (with 4 pot Brembos) as well as 2015+ WRX's. However it also lists the the 2011-2014 WRX's which can't be true.

I can confirm the STi front knuckle is too wide to fit in the WRX strut. Looking at aftermarket coilovers, websites show their products will fit on 2015+ WRX and 2015+ STi. So this should mean that the 2015+ WRX knuckle is too wide for the 2011-2014 WRX strut mount.
jurden is offline   Reply With Quote
Old 04-03-2021, 03:01 PM   #28
Jaywal94
Scooby Newbie
 
Member#: 440216
Join Date: Feb 2016
Chapter/Region: AKIC
Location: Marietta Ohio
Vehicle:
2011 WRX Limited
WRB

Default

Great write up everyone. Sorry to bump this. Especially if this has been answered several times in other threads.

Other than wheel and suspension fitment options, why would I want to switch to 5x114.3 ? Are the 5x100s easy to break under certain HP?

Thanks!
Jaywal94 is offline   Reply With Quote
Old 04-03-2021, 05:32 PM   #29
snow_bound26
Scooby Specialist
 
Member#: 395793
Join Date: Jul 2014
Chapter/Region: Tri-State
Location: SLC and Lake Placid
Vehicle:
2005 92x Aero
Beige

Default

Quote:
Originally Posted by Jaywal94 View Post
Great write up everyone. Sorry to bump this. Especially if this has been answered several times in other threads.

Other than wheel and suspension fitment options, why would I want to switch to 5x114.3 ? Are the 5x100s easy to break under certain HP?

Thanks!


Depending on what year 5x100, the 5x114 had better bearings that bolted in instead of press fit. You are also spreading the load over a larger area making it stronger. I had also read something a while ago about kick back on big brake kits being worse on 5x100, but I haven't been able to find that thread in a while, so I can't quote anything specific.
snow_bound26 is offline   Reply With Quote
Old 04-03-2021, 06:37 PM   #30
Jaywal94
Scooby Newbie
 
Member#: 440216
Join Date: Feb 2016
Chapter/Region: AKIC
Location: Marietta Ohio
Vehicle:
2011 WRX Limited
WRB

Default

Quote:
Originally Posted by snow_bound26 View Post
Depending on what year 5x100, the 5x114 had better bearings that bolted in instead of press fit. You are also spreading the load over a larger area making it stronger. I had also read something a while ago about kick back on big brake kits being worse on 5x100, but I haven't been able to find that thread in a while, so I can't quote anything specific.
That makes sense! I've got the 2011.

I'm sure up to a certain power level they are fine. I just want to make sure I'm always operating in my limits haha
Jaywal94 is offline   Reply With Quote
Old 04-12-2021, 04:15 PM   #31
Jaywal94
Scooby Newbie
 
Member#: 440216
Join Date: Feb 2016
Chapter/Region: AKIC
Location: Marietta Ohio
Vehicle:
2011 WRX Limited
WRB

Default

Quote:
Originally Posted by snow_bound26 View Post
Depending on what year 5x100, the 5x114 had better bearings that bolted in instead of press fit. You are also spreading the load over a larger area making it stronger. I had also read something a while ago about kick back on big brake kits being worse on 5x100, but I haven't been able to find that thread in a while, so I can't quote anything specific.
Do the 5x114.3 hub bearings direct fit to the wrx axle splines on the 11 wrx? Has anyone done this? Or does this conversion mean the full sti driveline swap?
Jaywal94 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 12:44 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2021 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.