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 Post subject: Compiled brake information
PostPosted: Thu Jun 19, 2008 9:22 am 
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To start, you can put almost any set of Subaru brakes on any other Subaru. If you want WRX brakes on your L or something you pretty much just have to buy some and bolt them on. There are some exceptions, however, mostly relating to the rear, which are explained later on. And also in this thread

Additionally, the 05+ sti has a different bolt pattern (5x114.3 vs 5x100) so those rotors are not compatible with other models.

If your car has rear drum brakes, a disc swap is fairly more involved. I'm not entirely sure on the process but there are more details farther down.

I would also be wary about trying to exchange stuff with the 08s. The rear backing plate is completely different so to the best of my knowledge nothing is interchangeable.

So, if you're wondering what brakes you have and what other brakes are out there, I've made this big list of most of the different brakes found on modern Subarus. The information came from a lot of places like the DBA catalog (click the rotor size for spec sheets provided by DBAsteve), cars101, and various threads/FAQs here and on scoobymods. This is mostly just about US model cars. Generally brakes were the same around the world but there are a few little special exceptions that are linked to later on.

Disclaimer: While I have tried to make this post as accurate as possible, there are some mid year revisions. I also can't be positive all the year ranges listed are correct, especially for pad shapes. In some cases, it is necessary to call a dealership with your VIN number or physically compare parts.

Front Brakes

242x18mm
Smallest Subaru front brakes, found on FWD non-abs Imprezas (93-96). The caliper and bracket are similar to those for early 260mm brakes with a shorter bracket and they use the same pads. These things fit under 13" wheels.
Applications:
93-96 Impreza 2WD.

260x24mm
This is the most common front rotor size before 2000. It was found on many Imprezas and Legacies and uses a single piston caliper and bracket. Somewhere around 96/97 the caliper/bracket/pad design changed. These fit under 14" wheels.
Applications:
90-99 Legacy non-turbo/-GT/-Outback
1995 Outback
93-01 Impreza AWD (non RS)

276x24mm
This uses a two piston sliding front caliper and there are three caliper/bracket designs. One for the 91-94 Legacy SS/TW, an early Legacy 2.5GT/Impreza RS bracket (~96-99), and a Later RS/GT bracket (03+). It's possible to exchange some of these calipers onto taller WRX brackets as long as the pad shapes match.
Applications:
91-94 Legacy turbo
96-01 Legacy GT
96-01 Outback
00-04 Legacy non-GT
98+ Impreza RS/TS/2.5i
98+ Forester
Some non-us BRZ/FRS/86 models.

294x24mm
295x25.5mm
This is the WRX front rotor. It uses a two piston sliding front caliper or the Subaru fixed 4-pot. The sliding caliper, bracket, and pad were changed in 03 and that's something you need to be aware of when upgrading from RS brakes or purchasing pads. The 4-pots are only on the 06-07 WRX in the US, though they were on many older non-US STis and WRXes (the black calipers with Subaru across them). Generally 16" wheels are required with these brakes but there are some 15" wheels out there that work. Also 16x6.5 Subaru wheels do not clear 4-pots.
Applications:
01 Legacy GT LTD?
02-04 Legacy GT
05-09 Legacy non-gt *
01-09 Outback
02-14 Impreza WRX (including 08, which uses 2-pots)
03+ Forester
Baja
BRZ/FRS/GT86

Here is the description on the different DBA rotors in this size:
WRXBrakes wrote:
DBA 1 piece:

Standard series - p/n 650 - fits 2 or 4 piston WRX w/294mm rotor

4000 series - p/n 4650 - Again fits all 2 or 4 piston 'WRX' applications. However - some street pads w/ shims on them may not fit w/ the shim as the rotor is intentionally a bit thicker to add heat mass. Take shims off - run a few weeks - if it gets noisy wait till they can fit.

p/n 4000 - Original 4000 series rotor w/ tapered HAT section to clear OUTBOARD ABS tone ring. This ABS system is all pre-2000 MY afaik.

5000 series:

p/n 5000 -the OG - fits 4 pot WRX only

p/n 5010 - fits 2 pot OR 4 pot front WRX calipers. This rotor was made when it was realized that the caliper bracket from the USDM WRX hit the rotor hardware on p/n 5000. Thus 5010 has a different design- the hardware is recessed for clearance.




Added bonus points: This rotor is also available in 5x114.3 to make it possible to swap an 05-07 STi to the subaru 4-pots for rally. Not sure where to find that rotor but I would start with rally shops. A standard WRX rotor cannot be re-drilled to 5x114 as it won't fit over the larger hub.

*The non-turbo Legacy actually has a slightly different rotor that is technically 292mm in diameter. It is also slightly heavier than the WRX rotor. They can be interchanged without issue.


316x30mm
This uses a two piston sliding caliper similar to the other 2-pots, although brackets and calipers aren't compatible between other 2-pots. 17s are required with them.
Applications:
05-09 Legacy GT
Tribeca (5x114.3 bolt pattern)
2015+ WRX (5x114.3)

326x30mm (5x100)
326x30mm (5x114.3)
STi rotor that goes with the 4-piston Brembo calipers. There are two rotors, the 04 has a 5x100mm hub bolt pattern, 05+ uses 5x114.3. The calipers all mount the same way so you can attach front Brembos to other Subarus without trouble.
Applications:
04+ STi

A note about the SVX:
The SVX has brakes that are about the same size as WRX brakes and the SVX has 5x114.3 hubs. However, up front, the rotor hat offset (how close or far the rotor surface is from the hub) is different from that on other Subarus. The knuckle also locates the caliper bracket in a different position. That unfortunately means that you can't just buy some 05-07 STi brembos or Tribeca brakes or something to upgrade your SVX. I'm pretty sure that in the rear things are compatible with other Subarus.


Rear Brakes

I'm going to divide rear brake into two categores, what I call "old" and "new." The old brakes are on things like the 93-07 impreza and 90-09 Legacy. New brakes are on the 08+ and old and new stuff will not interchange because the offset between the rotor hat and caliper changed. In some cases (like the STI), Subaru kept using the same rotor dimensions, but you can't, for example, stick a 2010 sti rear rotor on a 2005.


Old rotors:

266x10mm
The most common Subaru rear rotor on older cars. It uses a single piston sliding caliper, of which there are a few variations. Early Legacy sedans (non-turbo) and Imprezas have a smaller piston than Legacy wagons and turbos, and there are a few bracket/caliper revisions.
Applications:
90-99 Legacies/Outbacks with rear discs non-turbo
93-07 Imprezas with rear discs (except sti, 06-07 wrx)
98-08 Foresters with rear discs
Bajas

274x10mm (old)
There are two versions of this rotor. One old, one new. for 05-09 Legacy/Outbacks with a 170mm parking brake. The exception is the LGT and probably the 3.0R. The other version is on newer cars.
Applications:
05-09 Legacy/outback non gt (170mm brake, old style)
2012+ Impreza non-turbo
2014+ Forester 2.5i


290x10mm
This is well known as the H6 rear rotor. The Legacy caliper is the same as most other 99-07 1-pot Subaru calipers so you can upsize to this rotor simply by purchasing the brackets and correct pads.
The "H6" bracket is part number 26625AE000. It uses pad shape D770
Applications:
00-04 Legacy/Outback non-brighton
SVX (5x114.3, 190mm parking brake)
Ver5 STI type-RA (5x100, 190mm parking brake)

266x18mm
This is the Legacy turbo rear rotor. The caliper is similar to the other calipers but is wider to accomodate the vented rotors. I hear it was also found on the v1 WRX (93-94).
Applications
91-94 Legacy turbo


290x18mm (170mm parking brake)
290x18mm (190mm parking brake)
290x18mm (2010+ Legacy GT, BRZ)
There are actually three different rotors in this size, and they are available for new and old cars. The first is the standard 06-07 WRX and 05-09 LGT rotor. It uses either a 2-piston opposed caliper or a 1-pot slider. The 2-pot will not bolt up to other Subarus without something like the Kartboy brackets or having a new backing plate pressed onto the spindle. The next version is for the STi 190mm parking brake so that 2-pots can be used on rally cars. See below for more info on the "new" version.
Applications:
05-09 Legacy GT (1-pot, 170mm park brake)
06-07 WRX (2-pot)
04-07 STi with FHI 2-pot conversion
2010+ Legacy GT
BRZ/FT86/FR-S


Some older non-us spec-b Legacys and wrx/sti models (see rear brake redux)

Note: The LGT uses a different brake line than older Legacies and Imprezas. So I think you need to grind down part of the caliper where the line mounts to get it to work on an Impreza. The LGT lines are a different shape and mount and a different angle and you can't use them.

316x20mm (5x100)
316x20mm (5x100, 170mm parking brake)
316x20mm (5x114)
STi brembos. There are multiple versions of this disc. One for the 04 STi, one for 05-07, one for 08+ and one with a 170mm parking brake drum. There's an explanation how to install rear brembos on other cars a little farther down. 08+ sti rear rotors have a different backspacing.
Applications
04+ STi


New rotors

274x10mm (new)
I mentioned this size already, the new version goes on new cars with 170mm parking brakes, which for some reason came back around 2012
Applications:
2012+ Impreza non-turbo
2014+ Forester 2.5i

286x10mm
New style rotor only, probably the most common one. Uses a 190mm parking brake. Also found on 2015 wrx in 5x114.3
2008-2014 wrx
2009-2013 forester (with rear discs)
2010+ Legacy 2.5i
Some BRZ/FRS/GT86 models
2015 WRX
uses a 190mm parking brake and 1-pot sliding calipers.

Why are there a 274x10 and a 286x10 rotor used on the same cars? Because the 274mm has a 170mm parking brake, the 286mm rotor has a 190mm parking brake. That doesn't really answer why they decided to go back from 190 to 170 on the impreza for 2012.

278x18
New vented rear rotor on the 14+ Forester XT. Probably has a 170mm brake, but is vented. Would be an upgrade for cars with 274x10mm rotors.

290x18mm (2010+ Legacy GT, BRZ)
Also mentioned above, the new version of this rotor is for 08+ cars with a 190mm parking brake. It can be found on the 2010+ LGT and the BRZ/FT86/FRS. This third version could also be used as an upgrade for the 08+ Impreza if you wanted to go to slightly larger vented rotor. It does not interchange with the group n rotor.
Applications:
05-09 Legacy GT (1-pot, 170mm park brake)
06-07 WRX (2-pot)
04-07 STi with FHI 2-pot conversion
2010+ Legacy GT
BRZ/FT86/FR-S

320x18mm
Tribeca rear rotor, so new style offset, 190mm brake, 5x114.3. This rotor looks like a possible upgrade for the 2015 wrx.

316x20mm (5x114)
08+ sti rear rotor, 190mm drum, new offset. With a redrill will work on 08+ wrx, and the rotor and caliper should go right onto a 15+ wrx if you wanted.
Applications
08+ STi

Drums
Some cars have rear drums that are like 9." I don't really know anything about Subaru drum brakes so it would help if someone filled that stuff in.
Some of them are: Legacy and Impreza Brighton models, Some 95-99 Legacy L models, some foresters and I think 02+ Impreza TS and OBS. (I'm not sure exactly)

To swap out drums, at the least you will need new parking brakes, backing plates, discs, calipers, and brake lines. It is usually best to get a whole knuckle/hub/parking brake assembly out of a car with rear discs. If you want to put rear discs on your front wheel drive Subaru, you might have to parts from a 90-94 Legacy, since they might be the only FWD Subarus with rear discs and the FWD rear hubs/spindles/struts/etc are different.

Installing rear Subaru 2-pots or Brembos on a non 2-pot car:

The Subaru and Brembos have the same backing plate, which is different from all the other Subaru rear disc backing plates. So calipers don't swap between the two. Additionally, the STi uses a 190mm parking brake drum. Pretty much everything else uses a smaller 170mm drum. That means if you take a set of rear brembos and put them on your WRX, the parking brake will not work.

However, there are Subaru 2-pot rotors (290x18mm) with a 190mm parking brake hat and Brembo rotors (316x20) w/ a 170mm e-brake so you can put either setup on either car. There are also Kartboy brackets that will adapt the 2-pot calipers to any other Subaru, and since both rotors are available in 170mm parking brake variety, you can swap either one onto any other Subaru. Here's a thread about fitting the brembos to other cars with the new Kartboy brackets and DBA rotors.

Here is the rear brake redux, which has more information about the older rear brakes that came on STis and fancy Legacys in Japan.

Some D-plate numbers
stoptech wrote:
The Friction Materials Standards Institute (FMSI) is an association that assigns numbers to different pad shapes that are used as a guideline for pad manufacturers to refer to, and bring a common numbering system to the brake pad aftermarket. Virtually every pad manufacturer will either use the FMSI number in their numbering system or have a readily available interchange to cross-reference their part number to the FMSI number.


I should note that the caliper bracket, and not the caliper, is what determines pad shape. So while there are a few different pads, in some cases the calipers are the same.

Front 1-pots

D470:
1990-1995 Legacy
1993-1996 Impreza

D722:
1996-1999 Legacy
1997-2001 Impreza

Front 2-pots

D563:
1991-1994 Legacy Turbo
1996 Outback
1996 Legacy GT

D721:
1997-2002 Legacy
1998-2001 Impreza RS
2002 Impreza and WRX
1998-2002 Forester

D929/D1539:
2002-2009 Legacy/Outback (non-gt)
2003+ Impreza/Forester
8/2002-2005 WRX
2008-2014 WRX
BRZ/FRS/GT86

I added a new shape, 1539. It is listed specifically for the 11+ but the basic shape is still the same. Difference is that the new pad has more friction material on it and slightly different wear indicators.

See this article for clarification on 02-03 shapes

D1078:
2005-2009 Legacy GT
Tribeca
2015 WRX

Rear 1-pots

D471:
1990-1999 Legacy
1993-1998 Impreza
1993-1997 SVX

D770:
2000-2004 Legacy
2005-2009 Legacy GT
1999-2002 Impreza

D1004:
11/2002-2005 WRX
2003-2007 Impreza

D1114:
2005+ Legacy 2.5i/Outback (incl 2010+)
2008-2011 Impreza
2008+ WRX (includes 2015)
2009+ Forester
non-vented FRS/BRZ/86 rear brakes

D1124:
2010+ Legacy GT
FRS/BRZ/GT86

FHI 4/2-pots
Front: D647 (or D1170, D460, D1182)
Rear: D461

STi Brembos
Front: D1001
Rear: D961

Missing information:
- non-us market vehicles
- BRZ vented vs not vented


Last edited by jamal on Fri Apr 22, 2016 4:23 pm, edited 9 times in total.

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PostPosted: Sat Feb 14, 2009 9:26 am 
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what sized wheels do i need to clear the brembos?
I have some 06 wrx wheels, (16's) will that work?


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PostPosted: Sun Feb 22, 2009 2:58 pm 
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I was wondering, i have a set from a 05 legacy with 2 pot calipers, 316x20 mm.
I am looking for some oem part numbers, these are not sold here in The Netherlands.
The stud pattern is 5x100, so can i also use STI MY02 rotors? as the have the same size and stud pattern.
Thanx a lot guys.

Renzo


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PostPosted: Sun Mar 15, 2009 11:57 pm 
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man, no one ever gave you props for this jamal.

this is a nice write up. thanks for taking the time to do it.



my question is..

after just finishing my suspension swap, i've realized my pads are super low in the front, and really good in the rear. that kind of pissed me off and my bias must be off or something. it seems like im using 80% on the front.

anyways.

i want a cheap and quick upgrade instead of changing my pads this time.

what is my best solution.

i'm thinking wrx brakes, and just the front for now.

what do i need. rotor caliper bracket and pads. and what year do i want?

thank you

Ryan

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PostPosted: Mon Mar 16, 2009 7:59 am 
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Well, I'm not jamal. But for a cheap upgrade I went with '02-'04 WRX two piston. For this you'll need the calipers, brackets and rotors. The calipers and brackets can be had for ~$100 if you're patient and keep and eye peeled. Stock replacement rotors are pretty cheap at your local parts store, or you could take the opportunity to upgrade those as well. I've heard good things about frozenrotors but have no personal experience w/ them. They won't, however, fit behind stock 15" turbo wheels, so you'd need to swap those as well, if you haven't already.

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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 10, 2012 10:03 am 
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If any of you have upgraded to the newer style rear caliper/d770 pad you can do the "h6" upgrade for under 100$ That would mean the rear caliper from all the 99+ Subarus I would imagine.

Image
My research says the following RockAuto part numbers match the Subaru part numbers normally used
A-1 CARDONE Part # 141605 - $13.96 - Equal to Subaru 26625AE000
CENTRIC Part # 12147017 - $20.99 - Equal to Subaru 26700AE04A
CARLSON Part # 13370 - $4.93 - Equal to multiple Subaru 26632FC001


Last edited by ciper on Thu Apr 12, 2012 6:07 am, edited 1 time in total.

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 Post subject: Re: Compiled brake information
PostPosted: Wed Apr 11, 2012 6:51 pm 
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Good info to know!

Thanks

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 Post subject: Re: Compiled brake information
PostPosted: Sat Apr 14, 2012 2:37 am 
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I verified that those are in fact the correct parts. I installed my 290mm "H6" rear rotors last night viewtopic.php?f=25&t=49045&p=379888#p379888

-The heat shield should be completely removed. Trimming it doesn't give any length over the backing plate
-The rotors don't need the inner parking brake lip ground off. Some other Subarus grind if you don't.
-I found it much easier to bleed the brakes with the rear of the car up in the air. This helps air bubbles escape the long hard lines to the rear brakes.
-I had to adjust the freeplay of the brake pedal. Maybe compensating for the increased caliper volume? (complete set of 07 FXT brakes swapped at the time)


Last edited by ciper on Tue Apr 17, 2012 12:26 am, edited 1 time in total.

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 Post subject: Re: Compiled brake information
PostPosted: Mon Apr 16, 2012 7:11 pm 
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The piston cylinders should be identical, so your volume requirements should have stayed the same. I've got piston sizes listed in my brake math spreadsheet.

http://www.main.experiencetherave.com/s ... kemath.xls

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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 12:22 am 
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I swapped everything. From stock 91SS to complete 07 FXT (with H6 rear brackets/rotors). So now its 295mm Front 290mm Rear?

I bled the brakes until the fluid came out clear. I can't figure out why the pedal would be "soft" otherwise


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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 3:24 am 
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you could try bench bleeding the MC and cycling the ABS to improve feel. We got some air in the abs of the race car and I went out on the grass at buttonwillow and did a bunch of sliding abs stops. the brakes were much better after that and another bleed.

volume requirements stay the same, but a 1-1/16 mc makes a big difference as does a master cylinder brace. the bigger MC reduces your pedal travel and the brace gets rid of some of the softness. However, a lot of the crappy feel comes from the caliper design itself. going to a nice stiff 4-pot will probably make a bigger difference than anything else.

on that note, for a turbo legacy my brake upgrade recommendation of choice is FHI 4-pots. you don't get a change in bias over the stock brakes, you get a bigger rotor, and you get a better caliper design. Plus a great pad selection.


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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 4:13 am 
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I am not sure what the previous owner did but the ABS light is not on and the fuse is still good but the ABS does nothing. I locked up the front wheels for a good 20 feet to be sure.


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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 5:12 am 
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jamal wrote:

on that note, for a turbo legacy my brake upgrade recommendation of choice is FHI 4-pots. you don't get a change in bias over the stock brakes, you get a bigger rotor, and you get a better caliper design. Plus a great pad selection.

4Pots require minimum 17" wheels?
ciper wrote:
I locked up the front wheels for a good 20 feet to be sure.

Time for new tires? :o

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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 6:49 am 
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the 4-pots fit under 16" 99-01 RS wheels along with most 15" rally wheels. They don't fit under most 16x6.5 subaru wheels though. I have a set of RS wheels so I should probably get some 4-pots pretty soon.

The rest of this conversation is getting a little off topic ciper you jerk.


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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 8:53 am 
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Why are the caliper pins different from top to bottom on my 07 FXT brakes? In the front and rear as well the pins are of a different shape mounting flange and the plastic material at the end is different. I didn't pay attention when I removed them to paint the brackets so they could all be upside down.

jamal wrote:
volume requirements stay the same, but a 1-1/16 mc makes a big difference as does a master cylinder brace.

I am still using the original rubber lines. Ill try to make a master cylinder brace. Once the other repairs are done I may get a larger bore master and another booster with more assist.

beatersubi wrote:
Time for new tires? :o

I was trying to lock them on purpose to activate the ABS. They are 205/55r16 Potenza Re960AS Pole Position with low miles. These brakes are powerful! Part of the problem is probably worn out struts and the need for a good alignment. Either way the ABS is totally inactive.

Legacy777 wrote:
I've got piston sizes listed in my brake math spreadsheet.
http://www.main.experiencetherave.com/s ... kemath.xls

If you have free time may I suggest uploading a copy to google docs and making any adjustments for compatibility? That way you could update it as needed and people wouldn't need local copies or have excel installed


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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 5:58 pm 
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ciper wrote:
I swapped everything. From stock 91SS to complete 07 FXT (with H6 rear brackets/rotors). So now its 295mm Front 290mm Rear?

I bled the brakes until the fluid came out clear. I can't figure out why the pedal would be "soft" otherwise



Yes, those rotor sizes should be what the FXT has.

I've dealt with some pretty stubborn air in the lines, and what I recommend is slowly but firmly pump the brake pedal about 20 times, hold on the last one and have a helper undo the brake bleeder on the caliper. Repeat this process 3-5 times per wheel, and then move onto the next wheel.

Make sure to bleed the brakes in the proper sequence. The factory bleeding sequence is FL, RR, FR, RL. Make sure to frequently check the fluid level in the MC so it doesn't go dry. The other thing you can do is start the engine to take advantage of the vacuum brake assist. This will generate much greater pressures in the brake system to help force any trapped air to the caliper.

How did the pedal feel before you did the brake swap? If it felt ok, and assuming you have all the air out, the issue is probably related to the caliper design/flex. Some of the brake pedal travel/feel is related to the brake booster itself, but if you didn't have any issues before the swap, I would rule that out of the equation.

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1990 Legacy (AWD, 6MT, & EJ22T Swap)
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 Post subject: Re: Compiled brake information
PostPosted: Tue Apr 17, 2012 6:17 pm 
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ciper wrote:
I am still using the original rubber lines. Ill try to make a master cylinder brace. Once the other repairs are done I may get a larger bore master and another booster with more assist.


The SS already has the 1-1/16" bore MC, so there's really not any further upgrades you can do to it. The single diaphragm brake booster does dramatically improve brake pedal feel though if after all the other upgrades you don't like the pedal feel.


ciper wrote:
If you have free time may I suggest uploading a copy to google docs and making any adjustments for compatibility? That way you could update it as needed and people wouldn't need local copies or have excel installed


I keep the brake math file on the server at my house/network. I'm inclined to probably just keep it that way. I played with google docs a little bit, and the drop down boxes on the brake torque calculator page don't appear to convert properly.

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1997 Impreza OBS

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 Post subject: Re: Compiled brake information
PostPosted: Wed May 30, 2012 3:26 am 
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Here's a link to some info about Brake System Theory

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1997 Impreza OBS

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 Post subject: Re: Compiled brake information
PostPosted: Sat Jun 09, 2012 6:19 pm 
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I've unstuck this thread, but added it to sticky compilation thread.

viewtopic.php?f=8&t=49582

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 Post subject: Re: Compiled brake information
PostPosted: Wed May 04, 2016 2:21 am 
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So stock SS 15's wont fit over 294mmx24mm rotors? Can you run D721's or D929's on 276x24mm rotors no problem?


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 Post subject: Re: Compiled brake information
PostPosted: Wed May 04, 2016 2:49 am 
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ScaryfatkidGT wrote:
So stock SS 15's wont fit over 294mmx24mm rotors? Can you run D721's or D929's on 276x24mm rotors no problem?


I don't know about D929's, but if you use the above list:
D721:
1997-2002 Legacy
1998-2001 Impreza RS
2002 Impreza and WRX
1998-2002 Forester

All but the WRX (294mmx24mm) use the 276x24mm rotor, just like the stock SS rotor. I am running the d721 in my Outback (I swapped to forester front calipers and brackets) and also on my RS. So yes I have personal experience that it works. You need both the calipers and brackets!!!!


"Will 15" Legacy wheels fit over WRX brakes?" viewtopic.php?t=35572
"Biggest brakes under legacy 15" phone dial wheels" viewtopic.php?f=8&t=49531

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 Post subject: Re: Compiled brake information
PostPosted: Thu May 05, 2016 12:24 am 
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Jamal, I didn't see you explicitly state this, but would the D929 pad shape calipers fit the shorter brackets that came with 721 and pads? (00 RS, 98 Forester, etc)?

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 Post subject: Re: Compiled brake information
PostPosted: Thu May 05, 2016 4:43 am 
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No. The pads fit into and are held in place by the bracket, so the bracket is specific to the rotor size and pad shape. The caliper just squeezes. 276mm and 294mm brakes use the same caliper, but one has a taller bracket.

Front calipers do not interchage onto brackets with a different pad shape.

In the rear they do interchage between the 1004 and 770. People found this out when they bought "H6" brackets for their 03+ imprezas and everything went together fine but the pads didn't fit.


Last edited by jamal on Thu May 05, 2016 4:49 am, edited 1 time in total.

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 Post subject: Re: Compiled brake information
PostPosted: Thu May 05, 2016 4:48 am 
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Totally had a brain fart about that.

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 Post subject: Re: Compiled brake information
PostPosted: Wed May 18, 2016 10:09 pm 
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mike-tracy wrote:
ScaryfatkidGT wrote:
So stock SS 15's wont fit over 294mmx24mm rotors? Can you run D721's or D929's on 276x24mm rotors no problem?


I don't know about D929's, but if you use the above list:
D721:
1997-2002 Legacy
1998-2001 Impreza RS
2002 Impreza and WRX
1998-2002 Forester

All but the WRX (294mmx24mm) use the 276x24mm rotor, just like the stock SS rotor. I am running the d721 in my Outback (I swapped to forester front calipers and brackets) and also on my RS. So yes I have personal experience that it works. You need both the calipers and brackets!!!!


"Will 15" Legacy wheels fit over WRX brakes?" viewtopic.php?t=35572
"Biggest brakes under legacy 15" phone dial wheels" viewtopic.php?f=8&t=49531
294mm rotors and calipers don't work on stock subaru 15"s without grinding down the caliper, and 4pots don't work on stock 15"s or stock 16x6.5's, you need 16x7's or gravel spec 15"s.

Right now my plan is 294mm rotors and D929's on both my 93 SS and 98 GT then to run RS goldies with 215/60R16 Yoko Geolandar A/T's on the SS. Haven't figured out what to do to the rear yet without messing up the bias.


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