Body Mounts...Rubber or Poly?

[Blown353]

The poly mounts I used on my car were extremely high durometer... it barely took any rotation of the bolt after contact with the body to achieve spec torque on the body bolts (35 ft/lbs.) With a very objective (cough, cough) educated fingernail hardness test they were almost as stout as Delrin.



So yes, run either poly, plastic (delrin, etc), or solid of some kind. Going from fairly fresh rubber body bushings to poly bushings on my car made a very noticeable improvement in the "solidity" of the car. A bit of increased NVH but the stiffening of the overall frame/body combo was worth it.

One thing about the poly mounts though is they don't include the metal sleeves & washers, you have to reuse the old steel bits from the factory rubber mounts. If they're in bad shape then you'll have to find/make/buy new hardware.