What year ball joints are the same?

[Bus Ted Knuckle]

Are ball joints (upper and lower) for 73-87 1/2 ton trucks the same as a 72?

and/or

are ball joints (upper and lower) the same from 63-72

I guess the real question here is what year ball joints (upper and lower) will interchange with my 72 spindles on my 69 truck?

I know that I can go to the parts store and get them, but I have some NOS parts and I would like to use what I have if it will cross reference.

THANKS!!!
Bill