Beetle IRS trailing arms - are there different types???

[moggy]

A friend of mine has run into problems on his buggy project and it's got both me and him both stumped.

Is it possible to get trailing arms for a type one that are different?
I have just replaced some (long story).

I noticed that one of the arms had much thicker metal for the shock mount. When I fitted all the bearings, spacers etc (from the original ones) one of the disk calipers is approx 1mm too close to the disk. I took it apart to check and evertything is the same both sides (spacers, bearings etc).

Could the trailing arms have different positions for the bearings?
(all bearings are fully home - the disk is too far in towards the middle of the car):confused:

[hot66]

I was looking at an officila vw picture of an early ('68) IRS semi - auto beetle & noticed the trailing arms looked different to the later 1303 arms. Main difference was how the shocks mounted I think. Does anyone know if this was the case?

[Steve C]

Hi

Im pretty sure that there is no difference as far as bearings go but, upto 71s used twin spring plates and the later cars used a single spring plate so the traling arm is different.

I just remembered, the early traoiling arms had a thread tapped into them for one hole and the later ones used all through bolts.

Steve C