Would i have to upgrade the suspension on a stock 97 4runner to run a TJM bullbar, without a winch in it? The tjm 15 weighs 120ish lbs and the 17 weighs 80ish. The only thing attached to the bars would be two lights. I plan on adding a winch later, and i know i would need new suspension there. So do i need to upgrade using an after market bumper?