Does anybody know if the driveshaft from a 72 240 is identical between an automatic vs 4 speed car? I see in the Motorsports catalog there is only one part number, but I'd like to be sure... thank you in advance

I'm getting ready to swap my auto four a 4-speed as well. I have heard from several trusty sources on this site alone that says they have different length drive shafts.

I am also planning this swap for later in the spring. But what I read was that they are the same length. There may be differences between real early cars (like mine) and later 240Z's (where the diff was relocated back some), but I don't think the driveshafts differ from auto to manual for the same year cars.

Actually I am leaving in the automatic (girlfriend car), but would like to clean up and paint a driveshaft that from my parts car so I can do it all at once - out with the old and in with the new (entire suspension). Thanks guys

Perhaps you could pull the drive shaft from the parts car and compare the two. I'd think you could do it without having to remove the drive shaft from your gf's car. Jack it up and compare the length between the u-joints on each drive shaft.

As Arne says, I think the only difference in length is related to the location of the differential, which was moved rearward in later 240's.

I did the auto to 5spd swap a few years ago and the drive shafts were the same.

The auto was a 74 and the 5spd was out of a 78. Sorry if I'm adding to the confusion but I would bet that they are the same in your case as well.

Chuck

same for me.. no issues or differences I could tell

same for me as well,no difference in the length,although my auto drive shaft has a splined ring around it at rear of it so that you can I assume disengage the shaft from the differential,never seen anything like it before.