tire/wheel and backspacing help

[mike63078]

hello there.

I am working on my new project which will be a DD. anyway ita a a 76 cab on a 85 c20 frame. i want to get a nice looking 18-20" wheel on it and would like a nice wider tire so it drives nice. i was wondering about tire size and back spacing so the fronts dont rub and the rears dont tuck in too much

thanks

[87 STEPPER]

I don't want to give any numbers in case there off cuz you have a odd combo so im not really sure the dimentions will be correct.

But!..........If you go to a top notch wheel & tire shop they should have a special tool that they can fit onto your truck and it will let them dial in the exact spec's you need and want.

And it will be right the first time so when you order the wheels and they come in you won't be stuck with a set of 3k wheels that don't fit properly.

Providing the guy using the tool knows how to use it correctly.