so my dad has been talking alot of crap that his stock 2002 z71 will pull my truck all day in a tug of war..i think i might take him up on this . I have 2005 nismo 4x4 with calmini spacers and shackles cold air intake 265 mt with 1.75 spacers.. what do you guys think? do i have a chance? should i us the locker? or is a :nana:tug of war like worst idea ever?