so how new is new tacoma like 07 or the older body style ones.
i know on the older ones you can buy spacers for the front that will pick it up about 3 inches and in the rear on some you can take the bottom overload spring and flip it over and it will raise it 3 too 4 inchs and also help with ur hauling, a friend had this done on his 2000 single cab 4 banger with a body lift he cleared 35's easy and it would clear 38's with minor rub turning, it was fun too drive but did make it ride a lil rougher thow.
still had no flex but hell no ifs really has much.
good luck
adam