ID Help, heavily modified twin bearing rear trailing arms

[AKPorsche]

Hello, I need some assistance identifying a set of rear trailing arms I recently bought. I purchased them from a local Porsche enthusiast that was involved with racing team a while back in california. He said these arms are modified to hit high banking corners at high speed and not break their sub axles. They have welded dual bearings to arms as well as other various mounts.

There are also set bolts drilled into the mono ball mounts at the end of the arms. The arms have a 911xxxxxx serial number. I believe 930 trailing arms are dual bearing but not 911 arms. They arms seem to be well built. Let me know what you think.

If anyone needs a specific angle shot to better help this let me know

Thanks again.

Akporsche

[TRE Cup]

someone modified these 74-89 arms for some purpose other than use on a porsche 911.
they are basically useless unless you intend of using them for your custom designed dune buggy

[AKPorsche]

Thanks for the info. The person I bought them from worked on a 911 racing team in California a long time ago, the arms were built for entering high banking walls. It is clear a external bearing carrier has been welded in very well. I am trying to figure out if this is a common "back in the day" modification to the stub shafts area. Although I might be disappointed I can't use them however I will still consider them weird Porsche art for my wall.

Akporsche

Originally Posted by TRE Cup

someone modified these 74-89 arms for some purpose other than use on a porsche 911.
they are basically useless unless you intend of using them for your custom designed dune buggy