i want these in a 15x8 for the rear and 15x7 in the front
i preferably wanted about 30 inches tall in the rear with a 15x8, and my question was what is the widest size tire i can fit on it without it sticking out far, if anyone knows.
thanks for any help

 

just go with the same size rim, theres no point on running a inch smaller in the front. 11.5 width comes right with the flare on the Edges.

 

thanks for the help
i didn't know i could go that wide on only a 15x8 in a 30 inch tire

 

I doubt you'll find a 30x11.5 but I have 11.5 on a 15x8 and it works just fine.