Back spacing on B body rear end in 73 Duster

I realize I’m digging up an oldie here... but I’m about to do the same.
73 Duster.
My B body rear measures 55” or so.... end of housing. Not the axle Flange but the housing.
My perches are 44” give or take an 1/8”. I wonder if stock 7” police wheels will fit inside the stock houses with this setup.