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Old 07-31-2008, 07:44 AM   #1
wopdeeze
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Default Nissan 2pot rear caliper with Subaru Backing plate install

here are the basic steps for installing the factory subaru 2pot backing plate and using Nissan 2 pot rear calipers.

tools/materials needed
12 mm open end wrench
14 mm socket
14 mm open end wrench
32 mm socket
10 mm line wrench
pliers
rubber mallet
hub puller or similar tool
subaru 2 pot backing plates
nissan or subaru 2 pot calipers
subaru 2 pot rotors





First jack up rear of car and support with jack stands, i think it is easiest to complete one side first and then move on to next side.
remove rims

with parking brake set use 32mm socket to remove axle nut.

using 14 mm socket remove 1 pot caliper, save the bolts and use them with the 2 pots

remove rotor. remember to release the parking brake.


remove the parking brake shoes. and remeber how it goes back on. you will learn to hate subaru parking brakes(when you get to the point you will know what im talking about)
this is the tool i used to remove the hub.


use the puller and you will want to stop because you think you might break something but keep going. i found it was good to stop back all the way off reset the axle and continue the process. make sure you are on a good surface because your going to hear some creaking and moving. when you get to the point that you think you are going to break something the hub will pop off. (this is not for the faint of heart)


remove the 12 mm bolt on the back of the backing plate to remove the abs sensor. remove the 4 14mm bolts to remove the backing plate. use your rubber mallet to losen the backing plate and then i will come right off.
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Old 07-31-2008, 07:45 AM   #2
wopdeeze
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Default continued

place the hub back on the axle splines and press in as far as you can to get some threads on the axle. use the 32mm axle nut to press the hub back into the spindle. you will need to have the car in gear and the parking brake on so it doesnt keep spinning. dont worry about only having one parking brake shoe set it will still hold it enough


once you are satisfied with your hub installed (you wont be able to turn the nut with out turning the other wheel) re install the abs sensor, and the parking brake shoes remeber to release the parking brake to install this set of shoes. install rotor and set your parking brake for the new rotor.

install your NISSAN or Subaru Calipers to the backing plate using the 2 14 mm bolts from the 1 pot or new if you have them.



remove the brake line from your old caliper and install the banjo bolt in the back of the caliper. if using the nissan 2 pots remove the brass insert in the hole where the banjo bolt goes.



bleed your brakes and there you go. 2 pot rear calipers.

Total time this took me with minimal tools in my drive way was 4 hours including smoke breaks, and waiting for my girlfriend to get home to help me bleed the brakes.

cost of backing plate
50 dollars each from subaru
cost of rotors
100 dollars each from subaru
nissan calipers can be had from 100 and up

Calipers that can be used from nissans
R32 GTR, R32 GTS-T 300zx and Silvia S15
the skyline calipers and some of the 300zx calipers are made out of aluminum and the silvia calipers are cast steel. all are made by sumitomo.

Feel free to add any information you have to this process and attempt at your own risk. I accept no responsibility for any damage occured to your vehicle. contact me if you have any questions.

Good luck
Jarrett

Last edited by wopdeeze; 04-28-2010 at 02:58 AM. Reason: info from bigskywrx
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Old 07-31-2008, 08:06 AM   #3
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Great DIY bud.

Just one thing, those Nissan 2-pots, or more specificly the pad, still look like they sit out ~1cm further from the centre of the disc than they should?

IIRC, people have the same problem with the dogbone adapters.

Do the pads overhang the edge of the disc?
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Old 07-31-2008, 08:18 AM   #4
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Wow nice. How well these work?
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Old 07-31-2008, 08:24 AM   #5
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yes they sit out about 2mm i am using the GTR pads, but i think that the subaru pads and the nissan pads are all the same, there is a company in japan called global-z that sells an adapter for nissan or subaru 2 pots with factory 1 pot slider that utilizes the 315mm rotor from a celica Gt-four i think with enough research we could find a better fitting rotor but i did this with the hopes to find a cheaper alternative to the outrageous price for the subaru 2 pots. maybe a 297mm by 18mm rotor with a 170 inside diameter would fit the bill better.... with all that said throw in the factor of finding it with 5x100 bolt pattern.

Quote:
Originally Posted by 05-rsx View Post
Great DIY bud.

Just one thing, those Nissan 2-pots, or more specificly the pad, still look like they sit out ~1cm further from the centre of the disc than they should?

IIRC, people have the same problem with the dogbone adapters.

Do the pads overhang the edge of the disc?
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Old 07-31-2008, 08:28 AM   #6
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Quote:
Originally Posted by CoolRex View Post
Wow nice. How well these work?
in my trial testing the car feels like it just wants to sit down as it stops. im still bedding in the pads with the rotors, and i need to flush my brake fluid, after 60 laps at ebisu circuit the dot 3 fluid is in pretty bad shape. but my next time at the track i will post the results of feel and response vs the previouse setup on the track.
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Old 07-31-2008, 08:36 AM   #7
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Quote:
Originally Posted by wopdeeze View Post
yes they sit out about 2mm i am using the GTR pads, but i think that the subaru pads and the nissan pads are all the same, there is a company in japan called global-z that sells an adapter for nissan or subaru 2 pots with factory 1 pot slider that utilizes the 315mm rotor from a celica Gt-four i think with enough research we could find a better fitting rotor but i did this with the hopes to find a cheaper alternative to the outrageous price for the subaru 2 pots. maybe a 297mm by 18mm rotor with a 170 inside diameter would fit the bill better.... with all that said throw in the factor of finding it with 5x100 bolt pattern.
Ahh, ok.
Awesome, just thought it wouldn't hurt to check.

I can perfectly understand where you're coming from with the mod - there's such an array of shared parts between cars, that surely something has to fit.
Maybe it is as simple as finding the 'correct' (and i use that term loosely) disc.
Best of luck bud.
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Old 07-31-2008, 07:38 PM   #8
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Hmmm...interesting *subscribed for further discussion*
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Old 07-31-2008, 07:47 PM   #9
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That is a much cheaper upgrade. I'm now curious about an equal for the front 4 pots, I assume much less selection there.
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Old 07-31-2008, 08:37 PM   #10
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just to clarify both the Nissan AND Subaru rear two pots are aluminum, it's probable the Nissans can be had cheaper

I'd assume that they share the same piston size, but it would be worth verifying before doing IMO

also according to DBA's rotor catalog the 300ZTT rear rotors are 297mm (same 18mm vented thickness as the suby two pots), the suby's are 290mm- that might account for the fitment of the caliper
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Old 07-31-2008, 09:00 PM   #11
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Quote:
Originally Posted by LastResort View Post
That is a much cheaper upgrade. I'm now curious about an equal for the front 4 pots, I assume much less selection there.
I have access to a adapter for nissan R32 GTS-t, R32 GTR front 4pot that utilizes BP/BL Legacy front rotors, the same bracket used with R33 GTS-T and R33 GTR four pots can be used with Subaru Brembo Rotors.

The brackets run about 200 dollars and calipers up to 500 dollars.
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Old 07-31-2008, 09:12 PM   #12
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Quote:
Originally Posted by BIGSKYWRX View Post
just to clarify both the Nissan AND Subaru rear two pots are aluminum, it's probable the Nissans can be had cheaper

I'd assume that they share the same piston size, but it would be worth verifying before doing IMO

also according to DBA's rotor catalog the 300ZTT rear rotors are 297mm (same 18mm vented thickness as the suby two pots), the suby's are 290mm- that might account for the fitment of the caliper
Thanks for the Info bigsky the rotors off my buddies r32 GTS-T measured 287 and good info on the calipers, im using the old style calipers with the raised subaru letters, i havent really looked at the new style up close. and piston size i believe is the same because you can use the nissan rebuild kit to rebuild the subaru calipers.
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Old 07-31-2008, 09:20 PM   #13
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I'm talking rears- not fronts

you have two pots w/ raised letters? fronts (4 pot old style) come w/ raised letters, all the rears I have seen are all smooth w/ decal

front or rear rotors measured 287
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Old 07-31-2008, 09:54 PM   #14
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Quote:
Originally Posted by BIGSKYWRX View Post
I'm talking rears- not fronts

you have two pots w/ raised letters? fronts (4 pot old style) come w/ raised letters, all the rears I have seen are all smooth w/ decal

front or rear rotors measured 287
the rear rotors measured 287, you are correct the two pots are smooth, i just looked at my buddies GGB, all the brake calipers running through my head have been merging together.
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Old 07-31-2008, 10:09 PM   #15
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287 x 18 I take it?
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Old 08-01-2008, 02:51 AM   #16
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Quote:
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287 x 18 I take it?
correct
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Old 08-02-2008, 08:36 PM   #17
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any intrest in the larger front brakes?
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Old 08-02-2008, 08:51 PM   #18
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the Nissan fronts require an adapter bracket to work the Impreza, the Nissan front rotor is also shorter (albeit wider) and a different bolt pattern- so a different rotor is needed

here's one done w/ a modified SVX rotor

http://forums.nasioc.com/forums/show...7&postcount=16
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Old 08-02-2008, 11:23 PM   #19
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like i said before, with a R32 GTR GTS-T you can run a 315 rotor using factory subaru legacy rotors with an adapter bracket. or with the r33 GTR or GTS-T calipers you can run a 326 rotor using a 04 STI brembo rotor. i will have pics up soon after i get my calipers in.
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Old 08-02-2008, 11:29 PM   #20
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yes we're interested are there cost savings w/ those calipers over the Impreza Brembo's-obviously they are a straight up bolt on?
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Old 08-03-2008, 12:07 AM   #21
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brackets run about 200 dollars, and i can source the calipers for about 300 and then for your rotors just go to the subaru dealership and order the rotors. just let me know which rotors you want to use and i will get the correct calipers for you.
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Old 08-04-2008, 12:06 AM   #22
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do you have the part numbers for the backing plates both sides? They are much cheaper than the adapters from kartboy, and look oem. Also will a 16" aluminum wheel clear them?

I will be doing this install in about 3-4 days.
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Old 08-04-2008, 02:30 AM   #23
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Good job. Here's some reassurance that it works:

http://forums.nasioc.com/forums/show...23&postcount=8
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Old 08-04-2008, 02:57 AM   #24
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backing plate part numbers

26704FE080 LH
26704FE090 RH

Thanks kenny for the support, if anybody is looking for the front brake kit check out private for sale classifieds
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Old 08-04-2008, 03:03 AM   #25
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oh and if anybody is concerned with the NISSAN on the side, it can be easily removed with a file or belt sander since it is aluminum. just file and paint what ever color your heart desires.
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