Steelies sizing

[jarhead]

In this post

https://lateral-g.net/forums/show...7&postcount=93

I asked about sizing wheels and offset which I clearly don't understand...

I will put a snipet here since I am asking here.

I will be changing from a 16X7 , 235-60 Falken

Will a 285 fit on a 9" wheel?

I currently have 5" backspace on my 16" Cragar's,

What do I make of this offset calc?

Backspacing (in):5.125 in.
Offset:+3.00mm

Thinking about these wheels because I can't find 18X9 steelies
http://www.summitracing.com/parts/wv...2518/overview/

Going for this look
The 68 pictured has 17 x 9's all around. 245/45's up front and 275/40's in the back,But I want wider in the back




Thanks, Joe!