The Stovebolt Site Forums The Shop Area General Truck Talk Wheel size and back spacing

I’m not very good at tire sizing. I have 2 wheels already for the back of the truck. 15x8 6x5,5 OS -6, BS 250, CB 4.28
I need a front wheel 15x7 6x5.5 but I don’t know what offset and back spacing to get. I’m running drum brakes all the way around. Oh and this set up is going on my 1957 truck.



Thank you for the help

S