wheels and tires, backspacing, tire size help

So i kinda got screwed over when i went to discount tire. the guy gave me 15x8's instead of 15x7's and i didn't realize it until later on down the road (literally) and i didn't wanna go back in and raise hell. well anyways, they scrubbed the hell out of my front bumper so i had cut it (looks good). now my question. i'm looking into tires cause i'm lifting it 3" with the 4crawler bodylift and want to know what rim back spacing i need. or if mine is okay
thinking of:
32x9.5
32x11.5
33x10.5

What back spacing would i need for each in order for them not to hit my fenders/ frame? The current ones on the truck are 3.75" on -19 offset. i haven't been too sure what variable offset plays in this but some education would be appreciated.

my truck is also a 96 5 lug
Thanks

 

stock 4xd taco rims are 4.5'' BS with 10.5'' tires don't rub the UCAs or frame with 32s.

so anything from 4.5'' or less

and you doing a BL..so you won't rub the fenders or pinch weld period.

 

Thanks, you know about 32x11.5? Those are easier to find but I'm not sure how much of a difference it makes from the 10.5's. Mathematics, of course is an inch but in the world of trucks I'm not sure

 

actually .5'' per side to make it 1'' wider total.

i know people have fit 32x11.5s with stock rims no problem. Other then pinch weld trimming.

 

wtf Monte?!

You said I could put the 32x11.5s on without doing a damn thing

 

all depends on the alignment.

You may or may not have to hammer the pinch weld a tiny bit.


plus...aren't you past that point..haha or will i have to come hammer it for you? haha

 

Better have them by May lol

 

hahaha.. thanks for the info man