Another trailing arm bushing question, Polly bronze durable? Options

[trojanhorsepower]

I relatively recently installed my new set of 914rubber bushings. These were purchased maybe 10 years ago and installed maybe 5 years ago, but since the car was apart they have almost no miles on them. After finally being able to drive the car I found this.

https://www.youtube.com/shorts/2DWFetQ51aE
https://www.youtube.com/shorts/H5XFSS_rh74

So clearly these don't fit properly. I was going to go with the Elephant racing kit, but a friend of mine installed poly bronze bushings on his Jeep and they did not last a year. Anyone have any experience with these bushings as to long term durability? Or should I just bite the bullet and go with the soft rubber original style?

Thanks,

Peter

[Montreal914]

Bruce Stone installed a set of Prekom rubber stock (or sport (IMG:style_emoticons/default/idea.gif) ) in my arm. They were a pain to install as they should. On Prekom's list page when hovering, the description says designed and made in the US. But when you click on the description, it states these were designed and are fabricated in EU per original specifications. I belive it is the latter.

https://www.prekom-usa.com/product/porsche-...bushings-stock/

There was a thought these could be the same as the ones sold by ER in this kit below. They are also sold by Restoration Design EU.

https://www.elephantracing.com/porsche/914/...for-914/rubber/

Time will tell if they last.


Having purchased a set of Rebel Racing front (RSR) bushings, I have been wondering how their matching rear kit is. (IMG:style_emoticons/default/idea.gif)

This: https://www.rsrproducts.com/product-page/re...ear-bushing-set

After talking with @bdstone914 who has restored many trailing arms, one of the issue with any of the rigid options comes with the fact that the cylindricity of the trailing arm's tube is deformed probably due to its welded fabrication process.

ER's polybronze bushings compliance of the red part compensates for this problem, then you have a classic bronze over steel pivot design.