about to pull the trigger on a scarebird kit

In
which brand needs a 10" drum spindle?

scarebird 9" drum spindle kit.. 1960-72 Dodge, Plymouth "A" body, with 9" drums Wheel Kit

this is for a 10" drum spindle.. thinkits still small bolt pattern because the other 10" kit specifies large bolt pattern... 1965-72 Dodge, Plymouth "A" body, with 10" drums Wheel Kit
I confused myself there, SSBC makes a conversion kit aswell and THEY require the 10 inch spindle