Been obsessing about this and wondering if anyone has been in my position. So I have doe everything I can possibly to make the holes line up better.
The heel board is original and is fully intact and in original position. Also, the floor is a super tight fit and lines up well with the bottom of the rear arches which are original and mostly solid as well. Further, the boot floor flange toward the rear lines up pretty bang on with the rear panel, where it's flange and lower valance sandwich each other. I have the original genuine subframe , and another subframe, fitted them both with the same results. I have also 2 sets of mounting brackets used.
I am roughly within about 7mm. My thinking is that as long as the front and rear subframes line up, I am ok. Also, am I correct in saying that Genuine panels may not be accurate and 7mm off is within acceptable error? I am just afraid there is something I am missing.
Any help or concern is greatly appreciated!