The 41 Ford had various number of leaves depending on the model of the vehicle. This may affect the center-to-center distance.
What specific model do you have?
Thank you Kube.One thing you must be aware of - '41 springs went through a number of changes. Length, diameter of "eyes" were just two.
The main leaf will swap with any '41 - '48 passenger car. However, to reiterate, the "eyes" may be different sizes.