A31 Driveshaft

[who's next]

here is the other issue i am having. like i said i did a full conversion taking all the r32 mechanical parts and using it on the a31, the diff has also been changed to the lsd one that came with the r32. like others have stated the 1st half of the driveshaft is the same (with out the second half it would bolt sraight up as there is lots of room to pull it back to get the bolts to line up). the second half i needed to get adjusted so i got a machinist to cut and swap the end that bolts on to the first half. he said he maintained the same length and he balanced it. but when i bolted it up i needed to actually pull the center bracket back about 1/4 inch to line up the holes on the holes on the body of the car (not the whole drive shaft as i had little or no room room to move it. as you know the center bracket is made up of a rubber piece (not sure of the correct name) this is where the movement came from for me to get the bracket to move back 1/4 inch). now i have two questions linked to this. from this it looks like the 2nd half of the shaft is 1/4 inch to long or is this how it usually is? does anyone know the length of the second shaft from end to end. i am getting a slight vibration (not all the time) i don't know if he did not balance the shaft properly or if it has to do with the center bracket being pulled back 1/4 inch to get the holes lined up. would this cause any damage or the vibration. appreciate the help

[VRdrift]

I don't fully understand what you have done here, but I have done this conversion many times, never had any issues with the "hanger bearing" is the name your looking for, and it has always been a bolt up job, even with a R32 LSD

R32 front shaft onto the a31's rear shaft, early cefiro's need the flange swapped, easy once you have undone the big tight ass nut, not the case with series 2/3

once thats done there should be no issues with fitment,

take some pics for us, hopefully may be able to see whats up

if the shaft is vibrating, take it out of the g/box turn it 180 the slide it back in, had to do this with mine, problem went away