Can anyone please help out with this? My Akebono rear calipers have 2 empty threaded holes on the back that does not seem to make sense.
(please see pics below). The 2 outer holes are for mounting them. They bolt on just like the stock calipers. The two middle ones circled are threaded blind holes that look like attachment holes. My thought was that maybe with the 370Z/G37 application they use those as well for mounting. But I came across the second picture which has bolts in them that look like part of the assembly. Can someone with knowledge of these help please. And if they must be left empty, would'nt it be a good idea to at least plug them up so water and dirt don't reside in them.
Thanks for any input

 

I don't think I put anything in there. I would have to say it looks to be a bracket for the brake line and if your using aftermarket ones(or one's supplied with the kit) nothing will go in it's place. I only remember installing the bracket to the hub(make sure this is tight and try to find a torque value) then the caliper to that bracket.

 

Those are for brake line adapters used on G37 OEM lines. They are not used on 350z OEM nor SS lines. I guess I will just plug them up.
Thanks for your help. The vendor confirmed that today

 

I didn't even noticed they were rears... fail on my part.