Truck Dana 60

getting my truck Dana 60 ready for my dart
So far things are looking pretty straight forward should have done this a long time ago
But I do have one question that is a little fuzzy to me
Why can't I center the chunk
I understand the u-joint needs a angle to spin the needles but
That can be done with the pinion angle
Also the engine and trans are not in the center of the engine compartment
Thanks

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