Not every one, you didn't ask me As far as "performance" technically the poly are "better" just like the 620 coils. The don't give like the rubber does, and they have a longer life span. IMHO they are best for circle track cars, and cars that don't see much driving time. I would start with the strut rods, they are easy to grease and likely the main culprit. Grease will eliminate the squeak in the short term but I would eliminate the poly in the long run. The only poly on my car are the sway bar bushings.

 

what advantage do the adjustable ones have?

 

When you installed your new front end, (strut rod bushings, sway bar bushings) did you install them greased?...or did you install them dry?

 

dry

 

this page of mine should give you some good info
Adjustable strut rods

 

Try loosening your strut rod and sway bar bushings, soaking the snot out of them in Tri-Flow, then retorqing

 

can i just grease them?

 

daze want to sell me a set of your strut rods?

 

I can probably sell you the head units with connecting tubes so if you got them all you would need to do is have your original strut rods cut and threaded to fit in to the sleeves. Send me an email and we can discuss it further.

 

I agree.
Poly strut rod bushings are a bad idea. Too much stress on old components. I have poly on the leaf springs and sway bar only. Everything else is rubber.