Help Identifying a Drive Shaft

[Shelby_r_b]

I recently purchased a 66 GT350, and the car came with an additional drive shaft, and I'm trying to figure out the application.

Attached are pictures - please let me know your thoughts, as I've never had to ID a drive shaft before.

Thanks!

[Shelby_r_b]

One more pic

[gt350hr]

   You need to measure the length. It is a lower power or automatic driveshaft as it has the small Mechanics style internal snap ring U joint.
  Randy

[J_Speegle]

Its possible that its a "made up"/non-original driveline.  But what it will fits starts with measurements as Randy stated

[Shelby_r_b]

Thanks to you both! We're should I start and finish my measurements? Is it the overall length, or is it just the length of the shaft tube itself?

[JD]

as long as you have the tape measure out do both, might also do yoke center-line to yoke center-line and the diameter.

More info the better

[Shelby_r_b]

OK - I took some measurements, and here is what I got:

- Overall end to end length:  59"
- Forward center pivot point to aft center pivot point:  51"
- Shaft diameter:  3"

BTW - can anything be made out from the numbers / stampings in the pictures?

The prior owner ran a restoration / auto shop in the 80s / 90s, and picked up a lot of parts over the years.  When he passed in 1996, his widow took sole possession of the car and had one of her relatives go through the parts to determine what might be for the Shelby; which is how this drive shaft came with the car.  However, the car has it's full drive train already installed.

Thanks!

[J_Speegle]

BTW - can anything be made out from the numbers / stampings in the pictures?

Don't think much they appear to carry the same casting marks as driveline end yokes used on many V8 Mustang and other Ford product applications in 66. Have examples from C, A and K code automatics from what I found on an initial peek at my pictures