I am looking for what people are using for a replacement for the spring pad in the front or the rear. i saw fiero store stocks something but was looking for a poly setup.

Polyurethane here is like polyurethane ball-joint boots... I don't see the benefit.

These should work fine for the front. I'm not sure which part number would fit the rear.
https://www.amazon.com/Ener...olator/dp/B000CN72II

[This message has been edited by IMSA GT (edited 02-21-2018).]

I just use some 1/2" heater hose and slide it over the ends of the spring.

Or if you want less 'cush', wrap the top of the spring with an old bicycle tube. The isolator/pad is only there to prevent metal to metal contact, reduce vibration and quiet the ride.
You'll also get a little bit of lowering as well.