Will 5" backspacing work with a rough and country 4" lift with 35" x 12.50 tires on Pro Comp 18 x 9 wheels?

 

yes, it will.

 

Without any rubbing? will the tires still stick out a little bit with the 5" backspacing?

Thanks again.

 

factory BS is 6.25". 5" will give you 1.25" of additional clearance and you should not have any rubbing issues at the rear sway bar but you may have some minor rubbing at a full turn. 4.5" is the better way to go but 5" will do the job. at 5", your tires will not stick out very far at all - hardly noticable in fact.