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Discussion Starter #1
so here it is...

******AKEBONO REAR CALIPERS ARE A DIRECT BOLT ON TO THE 1ST GEN FX KNUCKLES *****

so you do not need to buy 2nd knuckles/spindles to have rear AKEBONO calipers....

what you need to complete the job

1. PAIR of Akebono Rear calipers
2. PAIR of FX50 rear rotors
3. PAIR of stainless steal brake hose for FX50 calipers
4. shave lip or remove backing plate

THAT'S IT!!!

ENJOY. HAVE FUN BE SAFE!
 

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Discussion Starter #2
**** note: Those rotors in pictures are the stock fx35 rotors they look off from the caliper i know... Point is to show calipers mount to the 1stgen knuckles/spindles ****
 

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That's interesting. When the FX50 rotor goes on is the offset of the rotor surface correct too?

Edit: Also does the parking brake drum still work with the FX50 rotors?
 

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So, no further discussion on this topic?? I’ll assume it’s misinformation, as ConceptZ still says you need to swap it. 🤷🏼‍♂️
 

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So in the absence of a reply from the OP, I did a little research and reread all the threads from when people first started doing this mod. I also started cross referencing part numbers between models. So the fx50 uses different parking brake shoes than say the g37 or 370z with the akebono brakes. The rear rotors are also different. But the g37 and 370z can just bolt on the akebono kit without changing anything. They also share the same parking brake shoes as a s50 gen fx. So that plus some diagrams on rock auto lead me to believe that the parking brake hat is the same size for a fx35/45 and a g37/370z.
This leads me to believe that it might be possible to use the g37/370z rear rotors but not a fx50 rear rotor.
Well the original threads way back in the day, they tried a g37 rotor and it didn’t fit the dust shield/backing plates. Well of course not, it’s too large of a diameter and the lip wraps around the rotor a little. Then the g37 parking brake and dust shield assembly wouldn’t fit the fx spindle. The fx50 wouldn’t either. So that’s how they got to changing the whole assembly

What I didn’t see was anyone just try trim the edge of the dust shield and slam the g37 rotor on! Sure it’s kind of a hack job compared to bolting on nice new OEM parts and that outer lip adds quite a bit of rigidity to the backing plate but who cares? Yes it’s not as nice of a finished job but I see no reason through my research why that wouldn’t work.
Unless anyone knows why that wouldn’t work I will be trying one g37 sport rotor on mine after trimming that lip. It might be a month before I get to trying it but I think it’s worth a shot.
 

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So in the absence of a reply from the OP, I did a little research and reread all the threads from when people first started doing this mod. I also started cross referencing part numbers between models. So the fx50 uses different parking brake shoes than say the g37 or 370z with the akebono brakes. The rear rotors are also different. But the g37 and 370z can just bolt on the akebono kit without changing anything. They also share the same parking brake shoes as a s50 gen fx. So that plus some diagrams on rock auto lead me to believe that the parking brake hat is the same size for a fx35/45 and a g37/370z.
This leads me to believe that it might be possible to use the g37/370z rear rotors but not a fx50 rear rotor.
Well the original threads way back in the day, they tried a g37 rotor and it didn’t fit the dust shield/backing plates. Well of course not, it’s too large of a diameter and the lip wraps around the rotor a little. Then the g37 parking brake and dust shield assembly wouldn’t fit the fx spindle. The fx50 wouldn’t either. So that’s how they got to changing the whole assembly

What I didn’t see was anyone just try trim the edge of the dust shield and slam the g37 rotor on! Sure it’s kind of a hack job compared to bolting on nice new OEM parts and that outer lip adds quite a bit of rigidity to the backing plate but who cares? Yes it’s not as nice of a finished job but I see no reason through my research why that wouldn’t work.
Unless anyone knows why that wouldn’t work I will be trying one g37 sport rotor on mine after trimming that lip. It might be a month before I get to trying it but I think it’s worth a shot.
Following
 

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I’ve ordered a set of g37 sport rear discs BUT I had to order ones to match the crazy raybestos/ac delco wave style slots that I have on the front AND because I had an amazon gift card from work I bought them from amazon, but they have a 1-3 month lead time. No idea when/if I’ll get them, but if/when I do I will trim a dust shield and try installing them ASAP. But this isn’t just a hollow threat, I’ve made a step towards trying it and reporting back on possibility.
 

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I’ve ordered a set of g37 sport rear discs BUT I had to order ones to match the crazy raybestos/ac delco wave style slots that I have on the front AND because I had an amazon gift card from work I bought them from amazon, but they have a 1-3 month lead time. No idea when/if I’ll get them, but if/when I do I will trim a dust shield and try installing them ASAP. But this isn’t just a hollow threat, I’ve made a step towards trying it and reporting back on possibility.
Please keep us updated!!
 
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