Brand new Centric drums don't fit?

cudamark said
You haven't stated the size of the brakes and the part number being used, but, it's possible he got front drums instead of rears. Fronts are wider and would hit the backing plate if tightened down. A simple measurement comparing the old drums to the new ones should tell the tale.

I’ve asked him to measure the width of his new drums…awaiting answer.

Not sure how to post the whole convo from FB, but here’s where it is, if you want to check it out…