Wheels...offset,,or backspace????

2018 taco.sport...just did a 4 inch lift..put on 255,,75, 17,s..stock rims...wheels definatley not out enough...anyone know exactly what what OFFSET,,OR BACKSPACE??????wheel I need to purchase to get the tires sticking out beyond the wheel wells..a bit?????keeping the wheel at 17inches...with my present tires...BF.GOODRICH,,MUDDERS...,,,thank you in advance....this all new to me.....

 

4"? As in a drop bracket lift?

Assuming you want the tires to poke for looks? Surely you're not interested in intentinally trashing the side of your truck by slinging debris all over it with poked mudders?

Anyway, it would have been much easier to achieve your goal if you had not chosen skinny (255) tires. Rather than buying new wheels, you could use spacers.

Of course this was discussed in your thread of June 24. https://www.tacomaworld.com/threads/wheel-spacers.616180/

 

Your stock wheel is a 17x7.5 +30mm.

Here's a calculator.
I want to warn you, it does not calculate backspace accurately. It uses rim width instead of wheel width to calculate; simply add 1/2" to whatever it calculates for backspace.

 

Probs like 0 offset at least. You're running a 10" wide tire. Skinny tire on that much lift. Your change your uca or running oem ones

 

Just add spidertrax 1.25" it will be the equivalent of -32 offset and put those wheels flush.