Wheel Offset/Backspacing

If I go with the t-bar crank/levelling kit and plan on running a 35x12.5 shoe, how much backspacing am I going to need for my H3?  I prefer no rub.

Thanks

 
I am running +12 with no rub and tires stick out about 2" or less. I've answered this question a thousand times...please do a search and you'll find chitloads of info.

thanks cowboy...I did search.  But I find this forum a bit clunky.  With all 4 different types of hummers sharing one forum it seems to be annyingly troublesome to search for exactly what I looking for.

Plug in the numbers and you should have an idea of what offset/backspacing that works.
 
OEM tires:  265/75-16 (802x265mm). Big Hub.
                32 x 10.5 x 16
Bolt OEM tires:  265/75-16 (802x265mm). 
Bolt pattern: 6x139.7 (6x5.5).
Offset: 15 to 35 mm.
Tires up to 842x305mm.
Rims up to 26x10.0".
265/75R 16 = 32 X 10.50 X 16
265/70R 17 = 32 X 11.50 X 17
275/70R 17 = 32.50 X 11.00 X 17
285/60R 18 = 32 X 11 X 18
 
http://www.wheelsmaster.com/rt_specs.jsp
 
http://www.dakota-truck.net/TIRECALC/tirecalc.html