50s chevy ibeam question

I apologize if the answer to this is easily found. I promise I tried searching. I picked up a 50s Chevy pick up ibeam axle and I noticed the leaves aren't perfectly parallel is that normal? Everything looks straight no damage. Any help is appreciated. Thanks.

 

yep

 

Not unusual, for front and rear.

 

Is there something I can do to make them parallel so it's easier to mount to the frame rails?

 

...if you're installing this onto another frame, you can loosen the u-bolts, make the springs parallel and re-tighten the u-bolts.