hi, i have been searching the threads for something about the slack in my 14ff. me and my dad were underneath my truck replacing my u-joint when i spun the drive shaft back and forth. my dad was really suprised on how much slack was in the rear end. it is definatley notice able when driving but i never thought much about it. I have heard that big gears need more slack like my 10.5in but i think i have TOO much. will i need new gears??? or should i just reset my backlash??? i'm pretty good with my truck so i think can do it my self with your help and with my various manuals. thanks.