Drums don't fit??

I spose in this day and age it could be "defective" shoe lining, IE Chineseo, or "they" forgot how to "do" shoes

It should be easy to check some things. If the shoes are retracted against the top pin on the backing plate, you can forget pushrod/ cylinder problems, and concentrate on the bottom adjuster

You still have the old shoes to carefully compare? If you are using the same adjusters, this should be easy to verify.

I agree the drums are gone. The "default" standard for passenger throwaway is .060. The larger the drums get, not only do they get thin, but the brake shoes then only contact the CENTER area of the shoe, and so you reduce the effective area of the shoes/ drums. They will NEVER stop effectively that way, partly bacause of the fit, but also because now this center area of the shoe is doing all the work, gets overheated and GLAZES the lining