(quoted from post at 08:48:15 09/04/15) If you are going with rusteloum you may want to check out this site. Look under painting.
myfordtractors.com/painting.shtml
I used PPG OMNI MTK with hardener. The code # is 70075
The sway bar is Sunrise Red on the left of screwdriver and Vermillion red on the right of the screwdriver.
I have just been gathering information, I was leaning toward the Sunrise Red but after painting a few drawbar parts with it (over PPG epoxy within the window) I was just not satisfied with the dry time (without hardener) and durability
I have decided to use the Vermillion Red(70075) with hardener.
I don't know about the gray for the 600 series tractor