Guillermo,i'm just about to go to my garage to strip my front end,I have a Speedway MII IFS in my '50,if you can bear with me i'll get some measurements for you.

I didn't install the crossmember personally but I have a sneaking suspicion the installer fitted it slightly forward of the recommended location.

I'll let you know.

1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.