Will this tire/wheel size work

[44boggers]

I know there are a million threads on this and I have gone through them all. I have done measurements on my truck but I just want to double check with them masses.

I have a 5/7 static drop. Will this tire/wheel combo fit?

Thank you in advance

Paul

Front: 8.5x20, Tire: 255/40R20 Backspacing: 5.25"
or
8.5x20, Tire: 255/45R20 Backspacing 5.25"

Rear: 10x20, Tire: 295/40R20 Backspacing: 5.5"
or
10x20 , Tire: 305/45R20 backspacing: 5.5"


I would prefer to us the 305 tire in the rear if it will work. Please let me know from your experiences.

Thanks