I spoke with a BDS technical rep last week regarding track width on their 4" and 6" lift kits.
He stated that "the front track width increases 1.5" on BOTH sides of the vehicle."
I guess the rub is that BDS recommends running a 5"-5.75" backspacing (basically stock wheels specs), depending on your wheel diameter.
I would say that yes, decreasing the offset would from stock specs would make the tires not stick out as far. My question becomes what handling, turning radius and rubbing issues may possibly arise from changing the wheel.
Lastly, BDS' website states a recommended tire size of 33" on the 4" kit and you can get 35" with the 6" kit. I currently have my Tahoe at +2.25" up front and am running 33" NITTO Ridge Grapplers with no rubbing. My gut tells me a 34" is certainly possible on the 4" BDS lift kit.
At the end of the day, the BDS lift kits WILL increase front track width enough that the tires will stick out from the outer fender wall (BDS recommended wheels specs) - straight from the horse's mouth.
Anyone know of a fender flare being produced for our SUVs?...