18x9" 5"BS on front?

[beaterku]

Good morning all,

I am going to order wheels this week for my 72. Right now it has stock front spindles that the PO has cut to lower the front slightly. I am eventually going to get a set of drop spindles and springs or air ride on the truck. My question is, will as 18x9" with a 5" backspace with a 255/50/18 fit on the front? I want to run a square setup front and back.

My current wheel/tire combo is a set of 15x8 4.5" BS Centerlines with 295/50/15 tires all around that the PO put on.

Thanks!