SWB trailing arms difference ?

[donporfi]

I have a SWB trailing arm p/n 901.331.511.02 for the drivers (left) side of the car and need one for the passenger (right) side of the car.
I have been offered a trailing arm p/n 901.331.215.12
Can you explain , what is the difference between the two ?

Picture of p/n 901.331.511.02

[chris_seven]

I don't think that these are the part numbers for the arms but the forging numbers so they are generally not too relevant and shouldn't influence function.

As far as I am aware, and we specialise in SWB cars, there are only two basic types of SWB control arm, those with a sway bar pin and those without.

If you are really worried about originality it could be an issue but I believe that they should fit and function correctly.

[donporfi]

I need the one without the sway bar pin. Originality is not my concern.
I requested a picture to make shure I am getting what I need.
chris_seven thanks for your answer

[pors1968]

I checkthe one i have and the cast number are on bearing side one set 68S with ball pin and 68 without ball pin.Your number is tube side but they are all same.

[chris_seven]

The geometry is the same with our without the pin so you could use either arm without problem if you don't have a rear sway bar.

[donporfi]

Thanks.
The only concern is that I already have the left one and would like a matching pair.