Most of the 240z rubber parts are reproduced on a milling machine, which made for a very high quality master part. Each part is then cast in a two or three part high quality mold.
The rubber parts are cast in industrial grade urethane rubber with a shore hardness of either 70A or 80A. The urethane has been degassed in a vacuum chamber, then cast and cured in a pressure pot for 24hrs. After curing for 24hrs the insulator have been heated to 150deg for 8 hrs for post-curing.
All metal parts are punched with a CNC Strippit punch and die.