go to "muscle mustangs and fast fords" you know, the magazine, go to their web page and do a search, i know for a fact there have been a few articles on how to do it and what you need, it actually helped me greatly and i have done them before but this refreshed my brain alot. i have the actual mag but i know its on the site. its really not that hard, back lash, teeth wear pattern preloads, what shims are needed, it tells you all of those. main tools a torque wrench, feller gauges white lithium grease(to see the wear pattern) and a magnetic dail thing(hahaha i forgot what its called) then basic hand tools. took me 3 hours while drinking to do it right. good luck