5 stud MY conversion

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KERAZY
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5 stud MY conversion

Post by KERAZY » Fri Nov 10, 2006 8:39 pm

either the search button hates me, or im the first to post this.

i was wondering what would be needed to convert my hubs to 5 stud? what do i need to change? is it even possible to do it without changing brakes? ive got 5-stud rims sitting around, and i like them. i want to see if i can get them onto my car.

any info would rock. cheers

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Chris_Rogers
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Post by Chris_Rogers » Fri Nov 10, 2006 10:24 pm

liberty front struts complete and redrill the tops. rear is a custom setup (see brateegabah.)
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PeeJay
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Post by PeeJay » Sat Nov 11, 2006 10:13 am

I think you need imprezza front struts because the springs are narrower. Liberty ones will only fit in an unlifted L series.

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KERAZY
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Post by KERAZY » Sat Nov 11, 2006 4:52 pm

wait, what? someone like to explain why i need new struts if i want to change the hubs?

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BaronVonChickenPants
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Post by BaronVonChickenPants » Sat Nov 11, 2006 5:04 pm

It's the easiest way of doing it.

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PeeJay
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Post by PeeJay » Sat Nov 11, 2006 5:31 pm

The mounting points are completly different, assuming you are talking about changing to the 5 stud liberty ones?

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KERAZY
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Post by KERAZY » Sat Nov 11, 2006 6:12 pm

i guess i am. so i cant just mount a 5 stud hub to my brakes?

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Chris_Rogers
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Post by Chris_Rogers » Sat Nov 11, 2006 6:21 pm

nope cannot do it.
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KERAZY
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Post by KERAZY » Tue Nov 14, 2006 3:36 am

can i at least convert to 4 x 100 as opposed to 4 x 114.3? using the FWD gemini ones or something?

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KERAZY
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Post by KERAZY » Fri Nov 17, 2006 9:34 pm

anyone? oversight or what?

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maudsland
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Post by maudsland » Sat Nov 18, 2006 6:06 am

If the car gods were subaru fanatics they would of made all cars and models have parts that were interchangeable with out modification

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coupe
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hubs

Post by coupe » Sat Nov 18, 2006 9:53 am

The brake hub isnt interchangeable with anything that we know about.
You can have the hubs redrilled to 114 Cameron or Seagull will help you there if you ask them.
Seagull says also that you can get a ford standard 5 stud pattern drilled on those hubs.
Other optins are you can redrill the hubs to take a 6 stud pattern to take some of the bigger 4wd rims.
You can use liberty or impresa front strut assemblys to change the front to 5 stud and you can use XT6 rears or theres a conversion kit to do the backs.
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Fury
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Post by Fury » Sat Nov 18, 2006 5:45 pm

coupe wrote:The brake hub isnt interchangeable with anything that we know about.
You can have the hubs redrilled to 114 Cameron or Seagull will help you there if you ask them.
Seagull says also that you can get a ford standard 5 stud pattern drilled on those hubs.
Other optins are you can redrill the hubs to take a 6 stud pattern to take some of the bigger 4wd rims.
You can use liberty or impresa front strut assemblys to change the front to 5 stud and you can use XT6 rears or theres a conversion kit to do the backs.
I have a spare set of 4 x 114.3's for the fronts for sale - my cost, done professionally

I went with the crossbred kit in the end instead
Chris :cool:

'88 Vortex AWD turbo with "go hard" attitude -

WRX EJ20G and box , TD05 Turbo and 4.111 running gear.
5 Stud conversion (Crossbred Performance) Multi pot GT Legacy brakes and 17" rims
Plenty of plans... the plans are getting done slowly;).... getting there - NOT! ;)

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tim_81coupe
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Post by tim_81coupe » Sun Nov 19, 2006 1:25 am

coupe wrote: Seagull says also that you can get a ford standard 5 stud pattern drilled on those hubs.
I seem to remember categorically debunking that one. Theres no way it will work without severely compromising safety.


KERAZY: I have seen both 4x100 and 4x114.3 redrills done on Subaru hubs before, but not having done them myself I can't offer any advice as to which is better, except to say that these are the best two 4 stud options.
6X140 works well by the looks of it too.
82 MY Wagon, EJ20G

87 RX, EJ20G

89 Brumby, EA81

12 BRZ, FA20

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KERAZY
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Post by KERAZY » Sun Nov 19, 2006 6:22 am

so I could probably find someone to redrill my hubs so they can fit 4x100 rims? that what you're saying?

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tim_81coupe
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Post by tim_81coupe » Sun Nov 19, 2006 1:22 pm

Yes, it can be done as I have seen it more than once. I don't know the nitty gritty of it though, at a guess I'd say the rear of the hub would need to be faced around the 4x100 holes to allow the studs to seat properly. The stud holes would have to be drilled 45 degrees out from the 4x90 stud holess that mount the hub to the disc on the front.
If possible I'd get the old 4x140 holes welded up (hub has to be pre-heated to prevent cracking) although some people argue heavily against this.
82 MY Wagon, EJ20G

87 RX, EJ20G

89 Brumby, EA81

12 BRZ, FA20

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Fury
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Post by Fury » Mon Nov 20, 2006 10:33 am

tim_81coupe wrote:Yes, it can be done as I have seen it more than once. I don't know the nitty gritty of it though, at a guess I'd say the rear of the hub would need to be faced around the 4x100 holes to allow the studs to seat properly. The stud holes would have to be drilled 45 degrees out from the 4x90 stud holess that mount the hub to the disc on the front.
If possible I'd get the old 4x140 holes welded up (hub has to be pre-heated to prevent cracking) although some people argue heavily against this.
Original hub material is 4041 alloy so I have been told, so if getting the holes welded, this info needs to be known.

The engineer I was oing through stated that It would be legal on 2 conditions
1 if the holes were welded and a certified procedure by an engineering shop for 4041
2 That the backs of the hubs not be modified in any way from original and flanges, fillets and structural surfaces be left in tact.


[img=http://img299.imageshack.us/img299/2922 ... dl2.th.jpg]

[img=http://img133.imageshack.us/img133/8351 ... gf0.th.jpg]

These hubs cost me $50 , and the welding quote, another $40.
An engineering certificate of $120 for all that I had done on the one vehicle, if I supplied all paperwork supporting documents.

As the rears also needed doing - and the car was going to be off the road while this was all being done, It was put into the to hard basket.

I believe drums can also be legaly re drilled, but I don't know the procedure. Someone mentioned at one stage that an engineer wanted some extra reinforcing to compensate for the crap material that drums are made from.
Chris :cool:

'88 Vortex AWD turbo with "go hard" attitude -

WRX EJ20G and box , TD05 Turbo and 4.111 running gear.
5 Stud conversion (Crossbred Performance) Multi pot GT Legacy brakes and 17" rims
Plenty of plans... the plans are getting done slowly;).... getting there - NOT! ;)

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