Thanks for all of this info guys. I suspected what you all said was the situation. Will have to verify they are staggered size, but I assume they are. Will just replace the rears with the same size. Thanks for all the help

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Dave S.
Northeast
2003 4.6is
2005 E53 4.4
2003 E39 Msport(a REAL ONE!)
1959 Fiat 600