I need some help i am looking at putting a new set of wheels and tires but need to know if they will fit this is the tire and wheel combo i am looking at

Xtreme Alloys Series 7189 Black Finish 16x8, 6 on 5.5 Bolt Pattern BackSpace 4.5 in
31/11.00-16LT, TSL/Thornbird

will this work on my stock 2004 toyota tacoma 4x4 with no tire rub?

 

Yes, that combo will fit but you would be better off with a 4" or 3.75" BS wheel. Also, TSL thornbirds are horrible tires.

 

where would be a good place to look for wheels with that backspacing?
and is the backspacing how far the wheel sticks out ?