Brake dragging problem...

[Mr.KA]

Ok before the bashing begins, I searched but haven't found anything close to what I'm looking for. Anyway, I have a kouki s14 with stock brakes and my passenger rear was dragging so I replaced the caliper with a remanned one, it was fine for a couple days then a few days later it started dragging again so thru searching I figured maybe the lines had deteriorated some so I replaced my lines. Now, I'm still having problems with that side dragging, only in the rear. I've ruled out the BMC being bad because if you look at the picture below there's only one line going to the rears from the BMC and my drivers side works fine. I'm starting to think that either that little splitter box(part #46364) is blocked or I have another defective caliper. All help is appreciated, thanks!

Diagram of brake system: http://www.courtesyparts.com/images/s14/s14_462-1.gif

[miravete]

i took off my brakes today, and found out that the previous owner didnt align the cylinder thing that pushes in the brake pad.

know what i mean? cuz the brake pad has a little nob on the back that wiggles into the cylinder.

its hard to explain.

lol

hope you get the idea :)