As the title says,
Do they/who makes FD3S dual oil cooler Thermostat rebuild kits?

I have a clean set which look in well enough condition but I'm not positive on the miles. One of the thermostat springs has slightly more play than the other. (less than 1/8" of an inch) Not positive if this is even an issue.

I did a search and came up with zilch. So just a curious question.

Thanks for your time.

-Ed