How to change gears and add a limited slip to a Ford 9-inch

Swapping in 3.70 gears and a trac-loc into a Ford 9-inch. 6:46 -Pinion crush sleeve trick 12:30 -Ring gear install 14:27 -Trick to torquing the ring gear bolts 18:07 -Measuring ring gear runout 19:15 -Pinion carrier install 20:12 -Carrier bearing preload+backlash setting 22:39 -Gear wear pattern