My PSS10 is having some noise in low speed over rough road. The noise is from the upper rear springs (main springs). When I look into it, these black rubber rings are missing for the rear units. May I ask where I can buy them back please? Thank you!

 

Any 2 pieces progressive springs coil over set up will make noise on rough roads, the rubber ring won't make a difference.

 

Mine never did and we have some VERY rough roads here in CA. Maybe if the car is lowered more then the springs never lose compression and remain silent.

 

Actually same. Also have PSS10 at ROW+10 and I don't see this issue. Also in CA with lousy roads (where is our tax$$ going?? Sorry different thread).