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 How to: 5 Stud / lug swap 
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Joined: July 26 2006, 3:54 PM
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Location: Belfast -Northern Ireland
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Post How to: 5 Stud / lug swap
I've been receiving quite a few PMs about how I converted my mx3 to 5 stud.

The front part was already known to fit due to the millenia 2 pot / subaru calliper upgrade:
Mazda 323F BA V6 / Lantis Type R spindles bolt right up to the mx3.
Image

Front Component List:
323F v6 spindles
Mx-3 / 323 wheel bearing (same)
323F v6 hubs
323F v6 brake discs (slightly larger diameter - specs will be added)
323F v6 callipers (an upgrade in piston size and no more sliding pins to sieze up)
323F v6 brake pads (large SA also I believe)
Image

All this bolts right up. Uses mx3 axles. ABS functionality is retained.

The rear was the gamble, being unknown territory, however it turned out to be the easiest part. The wheel bearing & hub assembly is a one piece unit, just like the mx3. It bolts on to the axle stub, just like the mx3 part. Simply use 323F v6 brake disc and retain the rest mx3 parts. Again ABS functionality is retained.

Front Component List:
323F v6 wheel bearing & hub assembly
323F v6 brake disc
The rest your standard mx-3 parts.

Image


Front Brake Specs in mm :
PAD SIZE:
Mx3 91.7 71
323F* 128 53.3

DISC SIZE:
Mx3 45 257 22
323F* 45 274 22

BRAKE PISTON SIZE:
Mx3 53.9
323F* 57

Rear brakes use same parts, discs are virtually the same except 5 holed.

*323F V6 model only








I'll pad this out later with more pics etc later.

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AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
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Last edited by marcdh on February 22 2012, 10:52 AM, edited 2 times in total.



February 06 2012, 6:52 AM
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Post Re: How to: 5 Stud / lug swap
Nice going Marc !

For me its not clear where the ABS ring attaches to? Is this the 5 lugs hub or some other part?

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February 06 2012, 7:41 AM
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Post Re: How to: 5 Stud / lug swap
On the front it remains on your outer CV joint as part of the axle.

On the rear the ABS ring is attached to the hub/wheel bearing assembly, as it is the rotating part, and the stub axle is static. In the last pic in the bottom right you can see the 4 stud mx3 wheel bearing and the ABS ring on the base. The 323 part comes fitted with the ABS ring, which is the same diameter.

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AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
Image


February 06 2012, 8:56 AM
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Post Re: How to: 5 Stud / lug swap
Great post..!
The 323f v6 spindle and hubs are different from 1.5 model?

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February 06 2012, 10:34 AM
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Post Re: How to: 5 Stud / lug swap
Yep, 1.5 BA has:
4 studs
Similar if not the same calipers as mx3
Similar if not the same spindles

I know this because my brother has one and from doing work on his car.

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AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
Image


February 06 2012, 12:22 PM
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Post Re: How to: 5 Stud / lug swap
To add a little bit onto this for the US guys. The 323F is virtually the same as the Mazda Protege 5. SO, after some research I have found the front hubs of the MP5 and MAZDASPEED Protege to use the exact same barring as the MX3 meaning it is a direct swap.

I have not been able to confirm the rears yet however.

Thanks again Marcdh for the info!

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Josh
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February 06 2012, 1:28 PM
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Post Re: How to: 5 Stud / lug swap
That would be awesome if the Protege 5 was the same as the 323F cause then I would just steal it off of my wifes car!!! If you want I can pop the wheel off and take some pictures if that would help??

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February 06 2012, 1:39 PM
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Post Re: How to: 5 Stud / lug swap
Thanks, Marc! now that I'm back, I'm going to steal almost all of your ideas. Thanks for the additional info, Josh!

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February 06 2012, 1:58 PM
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Post Re: How to: 5 Stud / lug swap
Maybe I'm missing a newer thread on the matter, but did anyone ever confirm that the Mazdaspeed Protege's front and rear spindles are direct swap with our MX3?


June 09 2014, 10:55 AM
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 Re: How to: 5 Stud / lug swap
The spline count on the Mazdaspeed Protege's hubs are 26 teeth.

What is the spline count of the MX3's axle?


June 24 2014, 8:53 AM
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Post Re: How to: 5 Stud / lug swap
26, IIRC.
So far as I have ever seen, the fronts are workable, but the rears are not. 1st gen Probe/MX6 rear discs are an improvement over factory, and performance pads/rotors are available as well. Popular cars, although the V6 and Turbo models were less common.

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June 25 2014, 12:43 PM
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Post Re: How to: 5 Stud / lug swap
The fronts are a direct swap using GS axles. The rears I have not confirmed, as I had not intended on using the rears. I have been told they do swap in, but have not been able to check the bearing specs. They are not very common to come across in the wrecker.

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Josh
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - http://mx-3.com/phpBB3/viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX-3-Owners-Enthusiast/137983472959216


July 01 2014, 11:32 AM
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