Can anyone tell me if their is a 6" lift that doesn't increase front track width?

 

Pro Comp.

I am fairly certain (90% let's say) that the Pro Comp doesn't widen the front track width.

 

Most if not all will increase it to some degree...some more than others. Main reason being is the requirement for wheels with a max backspace that may move them out 1". I have seen however on the 2wd fabtech 7.5" lift will increase the width quite a bit over stock.