Crank for wiper motor

[tomsa]

I have 2 broken wiper motors and bought a new.
The 2 old have a outgoing axel that are ~5/8"x3/8" but the new motor has a smaller axel ~ 1/4"x3/8"

Are the new motor from another car or are there different types of cranks ?

Sorry if I put this in wrong place

[70chall440]

I could be wrong, but I think the size changed with the years meaning they went to a smaller one in later years. I have seen both but never looked into it enough to determine when/why it occurred

I resized your pic to make it a little easier to see.

[70chall440]

And now looking at the pic, it looks like that crank is jacked up, should just be a rectangular slot in the part that goes on the motor I think, I need to go out and look at one to be sure. I have the motor out of my 70 RR, I will check that out for the slot and the stud size.

[tomsa]

Yes the crank are jacked up,looks worse than it is .
It's a rectangular hole .

So It a newer crank from  what year I need ?

[70chall440]

A new crank or weld that one up.