Dually rims not matching?

I have a 2018 ram 3500 dually and i was looking to find 2 rear rims to replace the inner steels. I was noticing theres are front and rears with the fronts being a 134 offset and the rears being a -140. I prefer a matching set to easily rotate the tires and just having to clean the rim up. i do not wish to do an 8 to 10 conversion or running 19.5in rims.
Answers

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The possibility of rotating tires on your Ram Dually simply not there. The suspension system of your Ram was specifically designed to employ the use of rims with extremely different offsets. There's really not a damn thing you can do about that.