do these fit the Tbird/Cougar IRS differentials?
Not sure, I have only heard of Cobra Kit Cars using the IRS.
We are out of IRS covers and will not be making another run until next year.
The IRS covers are ran as 'pre-order only.' Feel free to email us to get on the list for next year if you are interested.
We have a few customers on our facebook that are selling them brand new, never installed, as well.
Thank you for your support! :rockon: