I suppose You know the original type 3 cabriolet is in the VW Museum at Wolfsburg....
they didn't make it into production....
Anyone know if the early type 3s all had the grub screw wiper arms??
Do You mean that the arm is held onto the shaft with a grub screw??
If so that is the same as the 1968 Beetle.... but whether they are long enough for Your windscreen, I'm not sure..
maybe using the longer type 3 wiper Blades would be OK...
the late model beetle blades still fit My 68 wiper arms...
alternately, You would need to make the holes in the body larger and fit the later model wiper assembly...
[thats what I was going to do to mine]
[and thats what is needed on a beetle]
I presume the type 3 would be similar...
cheers
Lee
http://community.webshots.com/user/vw68autobug
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---