70 driveshaft stencil ID#?

[Dennis D.]

Going through wrong drivetrain parts with the help of Joe and others. Here's the latest to on the list to correct.
Pulled the driveshaft, washed with a little water. Here's the number.(3921675). Suspect 71 shaft? Or 70 auto? Has 2 way joints on the front and rear to work in my 70. What number is correct for 70 4 speed L-46?

[Chuck S.]

Re: 70 driveshaft stencil ID#?

PN 3921675 is 29.5" long C to C, 2.25" diameter, and is correct for ALL 68-72 auto transmissions, and 71-72 standard transmissions.

PN 3957056 is 29.875" long C to C, 2" diameter, and is correct for ALL 68-70 standard transmissions.

Nice stencil. Mine was completely gone. What are "2 way joints"?...universal joints are by definition "all-way" joints.

[Dennis D.]

Re: 70 driveshaft stencil ID#?

chuck

Should say, "2 dimension joint".The joint has 2 sizes. The wider for the larger diameter shaft ends, and the cross dimension is smaller for, in my case, the 70 trans and rear shafts. Thanks for the numbers.