Cab location dimensions

[aggie91]

I need some help from those of you that just might have the cab only mounted to the frame. I am working on a new chassis for my '65 that I can get done without having to take my truck apart. But to do so, I need to know where the cab is in relation to the cab mounts on the frame.

See the attached picture. I need to know the location of the face of the firewall when referenced off of the front face of the front cab mount. I all so need to know where the back of the cab is in relation to the rear face of the rear cab mount. If someone would be so kind as to get those measurements for me, that would be great! and in turn you

Here is my crude drawing of what I need: