The rear frame width for a 1964 F250 should be 33 1/2", but does anyone know how long the frame is from the back of the cab to the end of the frame?
I've got a steel flatbed from an '86 F350 cab and chassis that measures 8' long (on the dot), 7' 2" wide, and the subframe is built 34" wide to rest on the truck frame.
I'm wondering how much overhang this will have over the back.
This 86 F350 has a wheelbase around 136", where the F250 has 120".

 

I was able to go look at the F250 4x4 today, and spent an hour taking measurements. I'll post them up for others to know as well.

Frame length, back of cab to frame rail end: 8' on the dot.
Rear Frame width: 34"
Back of cab to axle tube center: 48"
Axle tube center to end of frame rail at rear: 48"
It's a stepside body: 49" wide inside x 95" long (just a shade under 8')

While I was at it...I got some other measurements as well...

Rear Dana 60 axle measurements...
Outside to outside of leaf springs: 42.5"
Spring pad to spring pad, on center: 40.5"
Backing plate to backing plate: 55"
Leaf spring width: 2.25"

Dana 44 front axle measurements...
Outside to outside of leaf springs: 34.75"
Leaf spring width: 2.5"
Backing plate to backing plate: 59"
Spring pad to spring pad, on center: 32"

Western Snowplow frame measurements... (Yes, I read the Western Snowplow Company metal tag and I have the serial no. for whatever reasons)
(Refer to the picture when understanding the text)

The frame has 2 positions for the blade frame on each side. Each "tab" is 1/2" thick steel
The extreme outside tabs are 27.5" apart on the outside of the tab
The middle tabs are 23" apart on the outside of the tab
The inner tabs are 18.75" apart on the outside of the tab

Motor Mounting setup for a 292 Y-Block/T98 combo...
The front motor mount on center of bolt to inside of frame rails is 14.5" for both sides...the motor mount is dead centered between the frame rails.
The rear crossmember front is 32" away from the center of the front motor mount bolt.
The rear motor mounts on the bellhousing are approximately 19" apart when holding the tape measure parrallel with the ground, and drawing an imaginary line straight up to the mount bolts.

Transmission/Transfer Case...
The intermediate driveshaft between transmission and Transfer Case: approx. 17"
The T98 transmission: 12" long case
These measurements do not include the tailhousing, yoke on the back of the transmission, or the U-Joints at either end. Sorry, missed that one!

I didn't measure the outside to outside of the tires...but why does it seem like the front axle is wider than the rear?