On the strut rod bushings. Here's what I can pick from. I have the originals, I have a set nos of moog upgraded bushings - which have a metal shaft that is flat on one side and goes through the bushing, I have a set of hard rubber with no shaft, and I have a set I bought off the company that advertises on the back of mopar muscle - it was poly - something. Real hard plastic and I think those have a shaft as well. Question - I'm sure it matters - but with those choices what would you pick ? The poly ones came in a front end kit I bought but I ended up using nos moog on the UCA and LCA bushings - and springs - so I never opened the nag inside the box.