F1 pitman length?

Could not find a Ford pitman arm for my F1 box at the swap meet today but found a Chevy arm that fit the splines perfectly. Goes on a model A build so I may have to re-shape it anyway. Don't have an F1 arm to compare length.
The Chevy arm is 6" hole to hole. Can someone please check an F1 arm for comparison?
Thanks.

 

Don't hace one at hand but 6" is pretty close.

 

54 f100 is 6 1/2 inches. hope this helps.

 

i figured the f1 and f100 was pretty close to the same. the boxes look the same.

 

Thanks guys, yes your info is helpful. I would have liked to use a Ford arm. The ball end is is swedged in and it can be removed easily. I can use a tie rod end in the tapered hole. I may have to heat and bend the arm to shape but it seems very close to start with.
For 15 buxs I'll grind the GM #'s off and keep my Ford a Ford (almost)......


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