Thank you!
I talked to the tech today at the machine shop and he told the wheel was stamped with that info. I didn’t realize that’s what the numbers were for!
It’s great to get the responses to my question. Thanks everyone.
I'm a new member here, and working away on my '72 FJ40 (3.9L/3 speed tranny). Currently I'm replacing the clutch and about to get the flywheel resurfaced.
Can anyone tell me what the original thickness of the flywheel would be? Thanks!