One piece driveshaft - '38 Ford?
 

Hi folks,

Converting my '38 to open drive as going the 5-speed route. Just pulled my torque-tube forward expecting to find a coupler to split it from the pinion, but have found this...

...no coupler and a one-piece shaft. I've seen these on Model A's but not V8s before. Anyone else come across this?

Re: One piece driveshaft - '38 Ford?
 

Mercury's were like that

Re: One piece driveshaft - '38 Ford?
 

Yep, Mercury.

Re: One piece driveshaft - '38 Ford?
 

Would a Mercury axle fit a 38? Or would the Mercury driveshaft be too long and must have been shortened somewhere?

Re: One piece driveshaft - '38 Ford?
 

39 mercury , more than likely 3.54 gear ratio already.

Re: One piece driveshaft - '38 Ford?
 

Or, 3.78. Got one in my garage, waiting.
Out of a 1947 or 1948 Merc.

Karl

Re: One piece driveshaft - '38 Ford?
 

My 40 Merc was like that, 2.78 gear. In excellent condition and free to who would need
or want it along with the torque tube, clutch, flywheel and pressure plate.

Re: One piece driveshaft - '38 Ford?
 

These are pictures of "jayvee34" one-piece '40 Merc driveshaft/pinion gear from some time ago. DD


https://www.fordbarn.com/forum/attac...8&d=1628548833


https://www.fordbarn.com/forum/attac...7&d=1628519214

Re: One piece driveshaft - '38 Ford?
 

It looks like a beefier model A one.
I wonder what the thinking was behind it, maybe to eliminate the coupling, for what reason?
Lawrie

Re: One piece driveshaft - '38 Ford?
 

Also installed in '41 Ford 6 cyl passenger cars.
From. memory, a 3:62 or 3:68 ratio. To verify, check the Green book.