300zx brake problems

[druthafoo]

So today I decided to go ahead and install my 300zx brakes and 5 lug swap onto my s13. We got everything together, but once I got to the point where I was mounting the caliper onto the rotor and spindle, the fit was VERY snug. Like I sort of had to beat it down with my palm thinking it will be snug temporarily. The hub itself wouldnt move at all, but like I said, I was thinking it was going to be temporary bc everything is new. I'm pretty sure that I have 30 mm alum calipers and that I'm using a 30 mm rotor. Once everything was bolted up and the brakes were bled, I tried to go out and bed the brakes, but there was ridiculous amount of grinding, brakes were locked in the same closed position so I stopped and reversed back into my spot to be safe. I figured I'll just remove the rotors tomorrow and have them machined down a bit unless I totally have incompatible parts.

Here's the stuff that I'm using

these are the calipers I bought; on importnuts page it says that 26 mm only came on the 90 NA, but these are claimed to be from a 90 TT so theyre supposedly 30 mm
FS: TT 300zx z32 front calipers - $100 - VAdriven.com Forums

I'm using Axxis Ultimate brake pads I bought from thmotorsports on here, with brake quiet applied behind em.

and these are the rotors I'm using

Beck Arnley 080-2386 which I know fits 30 mm calipers bc theyre used from 91 up.
1991-1996 Nissan 300ZX - Beck Arnley Front Brake Disc

It's dark outside so I'm going to measure the actual width tomorrow and compare to importnuts measurements.

What do you guys think? I actually have 26 mm? rotors are wrong? just keep pushing the car til it fits right? Thx in advance.

edit I also installed a 17/16 BMC