not sure if the hardness rating is right, but i want to sitffen the entire chassis, rear trailing arm bushing, motormounts, and anyone know a cheap d series ek chassis drivers side motor mount ?

 

http://www.mcmaster.com/

Part Number 8644K18

Shore A - 94

If you want to cut down on NVH (Noise, Vibration & Harshness), use a softer compound. Here is a chart showing the different Shore rating scales and more importantly how they overlap.

http://www.machinist-materials.com/hardness.htm