yep they are Durometer polyurethane bushings that are cut from a tube

http://www.jcroffroad.com/Merchant2/...tegory_Code=S6

durometer is a unit of measurement for measuring material hardness

correct but they are standard poly bushings. I think I kept the email from JCR saying this the last time mine wallowed out. Unless they are lying to me. Let me look

the fact that they are polyurethane is why they wallow out. i think im gonna try the delrin that dupont makes

all right let me know how it goes then. I have never heard of a TRE spacer like we have last for every long no matter what its made out of. Report back once you do it

i use Poly shock bushings for my RR setup. i just use a hacksaw to cut off the lip and then drill out the center to fit over the tre.



I havnt had to replace one yet and they cut down on roll quite a bit. I am def interested in other materials which may be harder.