I bought an msd distributor off a person i know. It is a new unit. He said that he changed the gear to a steel gear for a roller cam. The distributor also came with the other gear it had. But im not sure if it is a steel gear. The gear thats on the distributor looks like an iron gear. It is sprayed orange/yellow. Tried to see what i could find on the internet of the orange/yellow spray and found that some companies use colored paint to identify the gear material. Orange/yellow means its steel. What do you guys think? Iron or steel? The other gear in my hand is the one(iron) he had removed. This type gear came on the distributor from msd. But it has a smoother look than the other gear on the distributor.