unknown Honda k series gearbox help

Hi so I'm in need of some help as I got a Honda k series 6 speed gearbox for my k swap in a dc2 be here is were it gets confusing, I was told the box is from a 06 Honda accord euro so I jumped on it since hasport now has got a mount kit to use a accord or tsx/euro gearbox the egk3 but here is the catch my gearbox does not have the same 2 bolt accord bolt pattern for the egk3 kit it has a 3 bolt same as a egk1 k20 kit but still has the same egk3 crossmeber mounting sine there is no holes near the diff.

So what I would like to know what gearbox is this the code is SM5M is it a rare box? iv tried google and got jack shit nothing on it even with the code its a ghost box .

Is it possable that the gearbox case has been change to a k20 box,iv uploaded some picks to better explain sine this is so confusing

if any one knows or has info on this so I can move ahead and get the rights mounts would be much appreciated cheers guys

Well I'm the one who sold you the box, and I was told it was Euro (came from the same donor car as my K24A3 engine) by the guy who sold me the car. If it's no good to you I'm happy to refund your money and take it back as long as it hasn't been modified.

When I opened it up the ratios were slightly different to what I have been told Euro boxes have (very close though). The 4.7 FD also threw me.

The gear ratios are almost as close as the EP3R and DC5R boxes, albeit with a much taller overall gearing (running a lower diff would bring it in line with these though). I was planning on putting the gear set into my case and getting a lower FD for it as a "cheap" close ratio upgrade.

Hi the gearbox is fine I'm happy with it just trying to find mounts for my swap egk3 mounts will work but only the right side and sub frame the top gearbox mount is weird its like a k20 egk1 style mount with the 3 bolts but I'll work it out just wanted to see if any one else has seen this before thanks tho

yeah thats definitely k series box